Author Topic: My Ebike build with Dewalt batteries  (Read 1979 times)

tallpines

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My Ebike build with Dewalt batteries
« on: January 02, 2024, 06:48:49 AM »
Hey I built this ebike last year and thought Mustachians would like it, I hadn't seen one using power tool batteries so I wanted to see if I could make it happen.
It's a Salsa Mukluk fatbike with a Bafang BBS02 750watt mid drive motor. It's powered by Dewalt 60V Flexvolt batteries which I have alot of because I use them in my power tools. My goals for the build were to make as inconspicous Fat Ebike as possible and make use of the batteries I already had. I added a traditional downtube battery (not in picture) for extra range although I could also just bring more batteries.

After a year of use I can say it was a complete success. I bought everything used except the 3d printed adapter and the build total came to around $1400 CAD. Add an additional $200  if you needed to buy a new Flexvolt battery off the shelf. 

Here's a video link as well for a bit more detail.
https://youtube.com/shorts/6ZiDFlN_NtY?feature=share

Would love to see anyone else's builds!
« Last Edit: January 02, 2024, 07:06:19 AM by tallpines »

ChpBstrd

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Re: My Ebike build with Dewalt batteries
« Reply #1 on: January 02, 2024, 07:04:24 AM »
I'm holding onto some trashed Ryobi battery tools just so the battery adapter can be made into something else. Currently I've only made a weed eater, but have ambitions to change the kid's 20" bike into a minor ebike.

Aren't Dewalt batteries more expensive than other brands?

tallpines

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Re: My Ebike build with Dewalt batteries
« Reply #2 on: January 02, 2024, 07:38:36 AM »
Cool! Can you tell me more about the weed eater?
I'm not sure if they are more expensive. The controller requires 60v (uncommon in power tools) and I already had them so the decision was pretty easy for me.

ChpBstrd

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Re: My Ebike build with Dewalt batteries
« Reply #3 on: January 02, 2024, 07:54:27 AM »
Cool! Can you tell me more about the weed eater?
It's a pure hack job. Found a black and decker battery weed eater on the curb. Took my old Ryobi flashlight and connected the leads from the different interfaces with a couple of wires. Duct tape and zip ties finish the aesthetic. It's been working for years this way.

Jon Bon

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Re: My Ebike build with Dewalt batteries
« Reply #4 on: January 02, 2024, 10:15:46 AM »
PTF

What components did you use, and what were their costs? I have a lifetime supply of power tool batteries, Id love to be able to adapt them. 1400 feels like a ton of money to be since you already have the bike and the battery.




tallpines

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Re: My Ebike build with Dewalt batteries
« Reply #5 on: January 02, 2024, 10:38:41 AM »
Hey! You're right that would be a ton of money on top of the bike and battery.
I wasn't clear enough: 1400 was the approx total build cost including the bike and motor! I got the bike for 800, motor and electronics for 500, 3d adapter was maybe $50? and then the odd thing rounded it out to about 1400.

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Re: My Ebike build with Dewalt batteries
« Reply #6 on: January 02, 2024, 11:03:57 AM »
The bike build I have envisioned would re-use a drill's electric motor and battery interface. I would need a method of making a throttle and a method to transmit the drill's torque to one of the wheels. Something like a ratcheting belt drive system would be nice.

However it's getting harder to justify spending time on DIY hacks like this, when eBay is full of parts and kits like a $200 kit for 20" bikes.

tallpines

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Re: My Ebike build with Dewalt batteries
« Reply #7 on: January 03, 2024, 05:08:53 AM »
Sounds like a fun project but yeah I know exactly what you mean

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Re: My Ebike build with Dewalt batteries
« Reply #8 on: January 03, 2024, 11:03:21 AM »
This looks pretty awesome. What kind of range do you get per Ah? Does that controller allow for pedal assist?

I just modified my Dyson vacuum to run off 20v dewalt batteries and it is a much better tool now.

tallpines

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Re: My Ebike build with Dewalt batteries
« Reply #9 on: January 03, 2024, 12:02:27 PM »
No way , I'd love to see that vacuum. I have a Dyson too and I find it's low on power.
I'd say 2km/Ah. I have lots of 9ah batteries and one 15ah but too big for the seat bag. Yeah I only have it on pedal assist. I didn't want a throttle cluttering the cockpit.

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Re: My Ebike build with Dewalt batteries
« Reply #10 on: January 04, 2024, 07:56:10 PM »
No way , I'd love to see that vacuum. I have a Dyson too and I find it's low on power.
I'd say 2km/Ah. I have lots of 9ah batteries and one 15ah but too big for the seat bag. Yeah I only have it on pedal assist. I didn't want a throttle cluttering the cockpit.

I posted a couple of photos here:
https://forum.mrmoneymustache.com/journals/that-took-longer-than-expected-alaskan-adventures-in-scope-creep/msg3204134/#msg3204134

The original battery could not do the carpeted stairs, living room rug, and kitchen in a single charge. The 5ah battery has no problem. The adapter is on Amazon:

https://www.amazon.com/gp/aw/d/B09W2K4SVT?psc=1&ref=ppx_pop_mob_b_asin_title

I think it was only $21 when I ordered it.

tallpines

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Re: My Ebike build with Dewalt batteries
« Reply #11 on: January 06, 2024, 05:43:29 AM »
This is excellent. Thank you very much.
A project I've been thinking about is converting my diesel mini excavator to electric. It's a 1 ton caterpillar and the tracks retract so it fits through doors. With that and electric I could run it inside basements for underpinning etc. $$$

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Re: My Ebike build with Dewalt batteries
« Reply #12 on: January 06, 2024, 05:59:45 AM »
This is excellent. Thank you very much.
A project I've been thinking about is converting my diesel mini excavator to electric. It's a 1 ton caterpillar and the tracks retract so it fits through doors. With that and electric I could run it inside basements for underpinning etc. $$$

Not quite the same, but friends of mine operate a small farm. Another friend owns a solar installation company. They converted an old tractor to electric and put a few panels on top to continuously charge it. The tractor gets used all day, but only is in motion intermittently, so they never have to plug it in. Thereís a larger diesel tractor for continuous use, but this one serves the purpose of stop and go work.

How would you power an electric excavator? Forklift battery or a series of small deep cycle golf cart batteries?

tallpines

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Re: My Ebike build with Dewalt batteries
« Reply #13 on: January 06, 2024, 06:06:30 AM »
That's awesome. I'd like to check that out.
I don't know, it's outside of my scope so I'd need to research. I might post about it here looking for help, see if anyone is familiar with the theory or practical.

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Re: My Ebike build with Dewalt batteries
« Reply #14 on: January 06, 2024, 01:34:57 PM »
This is excellent. Thank you very much.
A project I've been thinking about is converting my diesel mini excavator to electric. It's a 1 ton caterpillar and the tracks retract so it fits through doors. With that and electric I could run it inside basements for underpinning etc. $$$

Iíd be interested in seeing a photo of that. I have been wondering when an electric small tractor would become a viable thing.

tallpines

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Re: My Ebike build with Dewalt batteries
« Reply #15 on: January 06, 2024, 02:06:48 PM »
I find it pretty interesting too. I haven't kept up to date on the tech. I saw an electric 1.5 ton Bobcat machine advertised last week. I am only in the business enough to be a one stop shop for fences, additions, decks etc. So I don't have to sub out the excavation.
My city recently made a zoning changed where nearly every property can have an additional unit, so I'd like to have the rare ability to have a machine that could dig out a basement for additional ceiling height. (They do make a Powerpack for my machine that runs outside and provides supply and return hoses for the hydraulics so I could rent/buy that but where's the fun in that for a project ?!)
« Last Edit: January 06, 2024, 02:08:49 PM by tallpines »

tallpines

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Re: My Ebike build with Dewalt batteries
« Reply #16 on: January 06, 2024, 02:12:38 PM »
Looks like Volvo is going for it.
They have them up to this 23 ton.
https://www.volvoce.com/united-states/en-us/products/electric-machines/ec230-next-level/

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Re: My Ebike build with Dewalt batteries
« Reply #17 on: January 06, 2024, 02:51:43 PM »
There was a former poster named @Syonyk who has done a lot of electronic projects like this.    This would be right up his alley. 

tallpines

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Re: My Ebike build with Dewalt batteries
« Reply #18 on: January 06, 2024, 04:37:43 PM »
Excellent, I have a really good ICE mechanic friend here and another friend with a metal fab shop so I'm covered there but could use a hand with the electrical components.

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Re: My Ebike build with Dewalt batteries
« Reply #19 on: January 06, 2024, 06:00:05 PM »
https://www.youtube.com/watch?v=ISR8pKoIa5k

Re: Tractors - My 1972 GE Electrak will need new batteries before spring. The lead acid have worn out finally. Leaning towards used Nissan Leaf modules. However there are 36V self contained lithium batteries now available. Sized similar to a deep cycle battery. LOVE having an electric tractor. My other lawn tractor just stinks by comparison.

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Re: My Ebike build with Dewalt batteries
« Reply #20 on: January 06, 2024, 07:22:19 PM »
There was a former poster named @Syonyk who has done a lot of electronic projects like this.    This would be right up his alley.

A loss for the forum, that he moved on, but you might check out his blog. Electrifying an old tractor does seem like his kind of project.


https://www.sevarg.net/

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Re: My Ebike build with Dewalt batteries
« Reply #21 on: January 06, 2024, 07:26:52 PM »
That little tractor sure would have been handy when I was a kid and we decided the best way to expand our house was to did a basement under it. We got most of it with an old backhoe, but we had to carry a decent bit of gravel out by hand to finish it.

tallpines

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Re: My Ebike build with Dewalt batteries
« Reply #22 on: January 07, 2024, 08:23:22 AM »
I had not seen the DeWalt bike before. That was amazing. I loved the cylinder head detail he did on the batteries.
I'll check out the guys blog and maybe reach out.
Lot of work moving material from a basement by hand eh. Did you guys have a ramp and winch or anything? Good memories though I bet.
Re electric tractor. Does it just have one motor that runs the drivetrain and hydraulics  or separate?
My excavator has a 13 HP diesel and it runs a pulley which spins the hydraulic pump.
Ideally I'd like to just replace the diesel and keep everything else as is.


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Re: My Ebike build with Dewalt batteries
« Reply #23 on: January 07, 2024, 07:46:44 PM »
The house had a small basement under the room at thewest end. We dug out the east side with the backhoe and built that wall. Then with the house supported on each end we dug out the South and North sides and built walls there. Most of the gravel we could not reach with the hoe could be shoveled to the hoe and lifted out. But some we left down there to mix with cement to pour the slab for the floor. This was done much later as it could be done after snow fell. For many years there was exposed gravel in one corner of the basement. We also had an indoor sandbox which was awesome as a kid... Eventually the last of the gravel was carried up the stairs in buckets.

I searched through the old photos but there are only two from that project.


tallpines

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Re: My Ebike build with Dewalt batteries
« Reply #24 on: January 08, 2024, 07:34:08 AM »
Those pictures are freaking awesome. That backhoe is the perfect machine. Looks like you guys went all out at the same time? New siding and windows? It's cool to see the diagonal sheathing, my whole career has taken place since sheet goods became the norm but I'm guessing this was before that or wasn't typical wherever this is?
 Our kids are 2 and 4 and I don't take them to site but we practice hammering, sweeping and driving screws during my projects at home. My dad had a construction company and is a great carpenter (in terms of knowledge, not speed because he was managing for majority of career) but I barely learned a thing. Wasn't interested until 24. Missed out on alot of knowledge but at the same time he wasn't dying to teach me either so, it's a give and take. Making up for it now.

Just Joe

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Re: My Ebike build with Dewalt batteries
« Reply #25 on: January 08, 2024, 07:40:40 AM »
I had not seen the DeWalt bike before. That was amazing. I loved the cylinder head detail he did on the batteries.
I'll check out the guys blog and maybe reach out.
Lot of work moving material from a basement by hand eh. Did you guys have a ramp and winch or anything? Good memories though I bet.
Re electric tractor. Does it just have one motor that runs the drivetrain and hydraulics  or separate?
My excavator has a 13 HP diesel and it runs a pulley which spins the hydraulic pump.
Ideally I'd like to just replace the diesel and keep everything else as is.

The GE has multiple motors that go with the attachments. As a mower for example: drive motor under the tractor plus x1 motor per mower blade, total of three for the mower deck. Tiller attachment has its own motor. Snowblower has its own motor. I mow multiple acres with it. When the batteries were newer it would do it all on one charge.

The folks who convert to lithium report even longer run times. Other benefits like no voltage sag, longer battery life (years). 

Here is a vintage promo video: https://www.youtube.com/watch?v=z5kP4g57Ycw

I see these for sale weekly on the web if you want one. Most need paint and batteries. Often older folks downsizing.
« Last Edit: January 08, 2024, 07:42:56 AM by Just Joe »

ChpBstrd

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Re: My Ebike build with Dewalt batteries
« Reply #26 on: January 08, 2024, 07:48:46 AM »
This reminds me of the time I learned there was nothing supporting one side of my bedroom, because termites and water intrusion has eaten out every last bit of support for several feet. It was literally hanging it midair by the tension of the walls, which were diagonal boards!

I posted about that little project here:

https://forum.mrmoneymustache.com/do-it-yourself-forum!/your-nightmare-project-my-piece-of-cake/msg2812164/#msg2812164

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Re: My Ebike build with Dewalt batteries
« Reply #27 on: January 08, 2024, 03:47:40 PM »
Those pictures are freaking awesome. That backhoe is the perfect machine. Looks like you guys went all out at the same time? New siding and windows? It's cool to see the diagonal sheathing, my whole career has taken place since sheet goods became the norm but I'm guessing this was before that or wasn't typical wherever this is?
 Our kids are 2 and 4 and I don't take them to site but we practice hammering, sweeping and driving screws during my projects at home. My dad had a construction company and is a great carpenter (in terms of knowledge, not speed because he was managing for majority of career) but I barely learned a thing. Wasn't interested until 24. Missed out on alot of knowledge but at the same time he wasn't dying to teach me either so, it's a give and take. Making up for it now.

The photos are out of order, so we dug the end out, and built that wall before the photo with the backhoe.

I grew up in rural Alaska in the 80s and 90s. Things were a bit different there, my father designed the original house the maximize space with the material he could afford on the drive back from the nearest lumber yard (100 miles). I think he had a bundle of sixteen foot 2x6s, two of 8 foot 2x4s, and one of plywood. There was almost no scrap. The diagonal boards were locally sourced and structural, as well as the outer siding. We spray foamed it from the inside after the siding was on. For years I thought my father had planned the gaps you can see between them, then he told me they were green when they went up and shrank that much. The windows were homemade out of glass my uncle scored free because it was slightly foggy. They don't really show up in the old grainy photo though. The original house was built in a couple of weeks by my father, a very motivated 35 year old carpenter with some "help" from my mother, my brother (2), and myself (almost 4). We moved in three days before it snowed. Thirty-eight years later it still wasn't "finished" when he passed away though it was much larger. I don't think he ever financed any construction on it, but he did have to borrow against the property after my parents divorced.

It makes me happy to hear some other 4 year old is getting to know the joy of hammering in nails. When he was putting the plywood down on the roof, dad would nail down the corners of a sheet, snap chalk lines and tell us to nail it down. My brother couldn't swing a hammer one handed yet, so i started the nails and he hammered them home. There are extra nails in that part of the roof and a number of places we missed the rafters. :)

Thinking about it, I should probably post a longer story and more photos to my journal. It's a pretty epic story of debt free over comfort and convenience despite our poverty at the time.

tallpines

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Re: My Ebike build with Dewalt batteries
« Reply #28 on: January 08, 2024, 05:30:28 PM »
I had not seen the DeWalt bike before. That was amazing. I loved the cylinder head detail he did on the batteries.
I'll check out the guys blog and maybe reach out.
Lot of work moving material from a basement by hand eh. Did you guys have a ramp and winch or anything? Good memories though I bet.
Re electric tractor. Does it just have one motor that runs the drivetrain and hydraulics  or separate?
My excavator has a 13 HP diesel and it runs a pulley which spins the hydraulic pump.
Ideally I'd like to just replace the diesel and keep everything else as is.

The GE has multiple motors that go with the attachments. As a mower for example: drive motor under the tractor plus x1 motor per mower blade, total of three for the mower deck. Tiller attachment has its own motor. Snowblower has its own motor. I mow multiple acres with it. When the batteries were newer it would do it all on one charge.

The folks who convert to lithium report even longer run times. Other benefits like no voltage sag, longer battery life (years). 

Here is a vintage promo video: https://www.youtube.com/watch?v=z5kP4g57Ycw

I see these for sale weekly on the web if you want one. Most need paint and batteries. Often older folks downsizing.
Wow I have never heard of these. Talk about ahead of their time. Thanks for introducing me.

tallpines

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Re: My Ebike build with Dewalt batteries
« Reply #29 on: January 08, 2024, 05:35:14 PM »
This reminds me of the time I learned there was nothing supporting one side of my bedroom, because termites and water intrusion has eaten out every last bit of support for several feet. It was literally hanging it midair by the tension of the walls, which were diagonal boards!

I posted about that little project here:

https://forum.mrmoneymustache.com/do-it-yourself-forum!/your-nightmare-project-my-piece-of-cake/msg2812164/#msg2812164
Wow, nice job. Any further issues? You saved yourself a pile of money there.
Re: ledger bolted to brick veneer, We had lots of similar water ingress issues here. Now code here requires a "Z" flashing cut into the brick min 1" and 1" high and then over the ledger. That detail done right saves a ton of headache down the road. A company I sub'd with went further and put an EPDM rubber liner on top of that. Water is the enemy eh. And termites evidently but we don't have any issues here in the Maritimes.
« Last Edit: January 08, 2024, 05:40:51 PM by tallpines »

tallpines

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Re: My Ebike build with Dewalt batteries
« Reply #30 on: January 08, 2024, 05:39:49 PM »
Those pictures are freaking awesome. That backhoe is the perfect machine. Looks like you guys went all out at the same time? New siding and windows? It's cool to see the diagonal sheathing, my whole career has taken place since sheet goods became the norm but I'm guessing this was before that or wasn't typical wherever this is?
 Our kids are 2 and 4 and I don't take them to site but we practice hammering, sweeping and driving screws during my projects at home. My dad had a construction company and is a great carpenter (in terms of knowledge, not speed because he was managing for majority of career) but I barely learned a thing. Wasn't interested until 24. Missed out on alot of knowledge but at the same time he wasn't dying to teach me either so, it's a give and take. Making up for it now.

The photos are out of order, so we dug the end out, and built that wall before the photo with the backhoe.

I grew up in rural Alaska in the 80s and 90s. Things were a bit different there, my father designed the original house the maximize space with the material he could afford on the drive back from the nearest lumber yard (100 miles). I think he had a bundle of sixteen foot 2x6s, two of 8 foot 2x4s, and one of plywood. There was almost no scrap. The diagonal boards were locally sourced and structural, as well as the outer siding. We spray foamed it from the inside after the siding was on. For years I thought my father had planned the gaps you can see between them, then he told me they were green when they went up and shrank that much. The windows were homemade out of glass my uncle scored free because it was slightly foggy. They don't really show up in the old grainy photo though. The original house was built in a couple of weeks by my father, a very motivated 35 year old carpenter with some "help" from my mother, my brother (2), and myself (almost 4). We moved in three days before it snowed. Thirty-eight years later it still wasn't "finished" when he passed away though it was much larger. I don't think he ever financed any construction on it, but he did have to borrow against the property after my parents divorced.

It makes me happy to hear some other 4 year old is getting to know the joy of hammering in nails. When he was putting the plywood down on the roof, dad would nail down the corners of a sheet, snap chalk lines and tell us to nail it down. My brother couldn't swing a hammer one handed yet, so i started the nails and he hammered them home. There are extra nails in that part of the roof and a number of places we missed the rafters. :)

Thinking about it, I should probably post a longer story and more photos to my journal. It's a pretty epic story of debt free over comfort and convenience despite our poverty at the time.

That story was awesome. No doubt he couldn't swing one handed, he was only 2! Luckily big brother Foreman was there to sink them.
I'd love to do some work up in Alaska, looks like a real nice spot from the limited videos I've seen. What's the rule of thumb for min. excavation depth?
Generally we are at 4' here and that's in the comparatively mild climate of Nova Scotia.
« Last Edit: January 08, 2024, 05:44:23 PM by tallpines »

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Re: My Ebike build with Dewalt batteries
« Reply #31 on: January 09, 2024, 02:46:20 PM »
That story was awesome. No doubt he couldn't swing one handed, he was only 2! Luckily big brother Foreman was there to sink them.
I'd love to do some work up in Alaska, looks like a real nice spot from the limited videos I've seen. What's the rule of thumb for min. excavation depth?
Generally we are at 4' here and that's in the comparatively mild climate of Nova Scotia.

LOL. I live down by the coast now and the standard depth is 40" for footings. I laugh because where I grew up there were no codes and local people claimed you could just lay wood beams on the gravel and they wouldn't rot because it was so cold and dry... This turned out not to be true and was one of the reasons for digging out the basement. There was no plumbing or running water to worry about with the initial house construction, but when we did eventually put in a septic system I think it was all buried at least 4'. That seems to be the local standard as there are still no building codes. It works well unless there is a long cold spell before there is snow on the ground. A few years back the town didn't get any snow until late in the winter and a bunch of people had frozen pipes. The local ground is good clean gravel, so it drains well in the summer and dry ground is decent insulation. It's much wetter where I live now and the ground isn't as good of insulation. The other place I lived in Alaska has permafrost about 700 feet down. Everything is build on stilts there. The houses that had septic systems required an above ground decomposition system. That was rather interesting.

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Re: My Ebike build with Dewalt batteries
« Reply #32 on: January 09, 2024, 08:46:17 PM »
Thinking about it, I should probably post a longer story and more photos to my journal. It's a pretty epic story of debt free over comfort and convenience despite our poverty at the time.

Sounds like a great story, I'm definitely interesting in reading it. 

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Re: My Ebike build with Dewalt batteries
« Reply #33 on: January 09, 2024, 11:43:39 PM »
Thinking about it, I should probably post a longer story and more photos to my journal. It's a pretty epic story of debt free over comfort and convenience despite our poverty at the time.

Sounds like a great story, I'm definitely interesting in reading it.

I attempt to write up something when I get home from this trip. It would be good to write it down as Iím the oldest and remember the most now that our father is gone. Iíll make it a journal series and put a link here when I do.

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Re: My Ebike build with Dewalt batteries
« Reply #34 on: January 10, 2024, 04:54:28 AM »
Please do , sounds like a very interesting story. If I understand correctly, your childhood started with no indoor plumbing and by your early forties you had become financially independent?
Yes, that is definitely a story I'd want to read.

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Re: My Ebike build with Dewalt batteries
« Reply #35 on: January 10, 2024, 02:06:36 PM »
Please do , sounds like a very interesting story. If I understand correctly, your childhood started with no indoor plumbing and by your early forties you had become financially independent?
Yes, that is definitely a story I'd want to read.

There are various details on my FI journey scattered around the forum, but the TLDR version pretty much comes down to that. When you grow up thinking of indoor plumbing as a nice to have luxury, half of an engineering salary allows for significant lifestyle inflation while investing the other half...

Another DeWalt conversion story. I'm visiting my bother who got this little car for next to nothing because the stock 12v battery died. Now it runs on a 20v DeWalt. Motors seem to handle 20v fine and it goes faster! My nephew loves it.

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Re: My Ebike build with Dewalt batteries
« Reply #36 on: January 10, 2024, 03:05:35 PM »
Please do , sounds like a very interesting story. If I understand correctly, your childhood started with no indoor plumbing and by your early forties you had become financially independent?
Yes, that is definitely a story I'd want to read.

There are various details on my FI journey scattered around the forum, but the TLDR version pretty much comes down to that. When you grow up thinking of indoor plumbing as a nice to have luxury, half of an engineering salary allows for significant lifestyle inflation while investing the other half...

Another DeWalt conversion story. I'm visiting my bother who got this little car for next to nothing because the stock 12v battery died. Now it runs on a 20v DeWalt. Motors seem to handle 20v fine and it goes faster! My nephew loves it.
Ha! I pulled one of those off the trash and wired/strapped in a riding lawnmower battery. If the kid goes from reverse to forward really fast it'll wheelie.

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Re: My Ebike build with Dewalt batteries
« Reply #37 on: January 10, 2024, 03:59:24 PM »
Ha! I pulled one of those off the trash and wired/strapped in a riding lawnmower battery. If the kid goes from reverse to forward really fast it'll wheelie.

Awesome!

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Re: My Ebike build with Dewalt batteries
« Reply #38 on: January 11, 2024, 10:55:16 AM »
We got one for the same reason, the battery died (now years ago). The hard plastic wheels were alot of fun b/c the kids could drift it a little on our inclined driveway or spin it for a scary slide down the same driveway (check for traffic first). 

Our kids put alot of miles on it riding around the neighborhood too. We were were of the "free range" parenting style. Where we lived helped. Would not have the same attitude elsewhere. We had neighbors that wouldn't let their kids out of the yard. I suppose we caused problems. "Well those other kids can, why can't I?"

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Re: My Ebike build with Dewalt batteries
« Reply #39 on: January 11, 2024, 07:19:14 PM »
We got one for the same reason, the battery died (now years ago). The hard plastic wheels were alot of fun b/c the kids could drift it a little on our inclined driveway or spin it for a scary slide down the same driveway (check for traffic first). 

Our kids put alot of miles on it riding around the neighborhood too. We were were of the "free range" parenting style. Where we lived helped. Would not have the same attitude elsewhere. We had neighbors that wouldn't let their kids out of the yard. I suppose we caused problems. "Well those other kids can, why can't I?"

My nephew (age 2.75) has worn a hole on one of the wheels doing that. So now my brother is looking for another ďjunkerĒ for replacements and weíre discussing how to improve the traction on these enough for his steep muddy trail once he has new wheels for the yard...

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Re: My Ebike build with Dewalt batteries
« Reply #40 on: January 28, 2024, 01:52:53 PM »
You could use old inner tubes to wrap the wheels. Use a contact cement. Glue on the wheel, glue on the tube, wait until it is tacky, wrap.

The problem will be the durability of the plastic gearboxes. The slipping wheels absorb the sudden on/off torque of the one speed throttle pedal.

I thought about using two cheap Harbor Freight  cordless drills as the drive motors and gearboxes with the added benefit of variable speed driving.

Our kids are college age now, not been a concern for many years now.

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Re: My Ebike build with Dewalt batteries
« Reply #41 on: January 28, 2024, 05:22:22 PM »
You could use old inner tubes to wrap the wheels. Use a contact cement. Glue on the wheel, glue on the tube, wait until it is tacky, wrap.

The problem will be the durability of the plastic gearboxes. The slipping wheels absorb the sudden on/off torque of the one speed throttle pedal.

I thought about using two cheap Harbor Freight  cordless drills as the drive motors and gearboxes with the added benefit of variable speed driving.

Our kids are college age now, not been a concern for many years now.

Maybe for grandkids? Iíll suggest that to my brother. Maybe gluing a piece of an old mountain bike tire on would give some mud traction.

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Re: My Ebike build with Dewalt batteries
« Reply #42 on: February 10, 2024, 01:42:59 PM »
Good luck. Wish your little one all the fun!