Endless Sphere

Yes its awesome and works perfectly :banana: :banana: :banana: :banana: :banana: 5/5 Have you got one of these Leffex? If you do what voltages and currents have you tried? Is the output stable and reliable? I have tried it at maximum about 92,5v charging at 20-25A. So I guess the maximum is either ...

Yes its awesome and works perfectly :banana: :banana: :banana: :banana: :banana: 5/5 Have you got one of these Leffex? If you do what voltages and currents have you tried? Is the output stable and reliable? I have tried it at maximum about 92,5v charging at 20-25A. So I guess the maximum is either ...

The charger is based on R4850G

R4850G looks about like this inside:
viewtopic.php?t=86038

Yes true. Charging only under on-sight as well. I use a 88v charger changed to about 90,5v. and about 5a The charger looks like this: https://www.aliexpress.com/item/32994268747.html?spm=a2g0o.productlist.0.0.699721a1NysN6Y&algo_pvid=f9c7a566-defb-47b8-aaae-266bb5e5e3a7&algo_expid=f9c7a566-d...

Yes its awesome and works perfectly

5/5

Usually three wires. Were 1 is +5v and one is -5v and on is signal wire. Connect right and it will work

There are battery medics 1-6s, battery voltage meter 1-8s with or without discharge and balance functionality. Max is 8 series what I know so you need at least the amount of packs that you disassemble your pack into. so if you have 4x 5s packs that's 4 meters.

Priced from about 10-50$ each.

I was driving a ktm 390 1500km and yes electric feels better but at 690 or mt07 like you have. Yeah I'd like to feel that power but I don't want to feel those vibrations in my hands after my run.

If you can get a hold of a zero motorcycle for 5000-8000 I would do it directly.

Try make a deal. I had a failed delivery from Aliexpress, nothing for 90 days and I really wanted it asap so you can imagine. I did put up a dispute and Aliexpress denied and just auto-replied that my parcel was in transit for 3 days before taking any further action. Yes, of course it was, and the d...

Just some photos of my small pack I want to share How to assemble: Soldering exactly how: tesla style. One side is fused with wire capable of 5-15a max(deciding), the other more robust fastened with thicker copper wire. Both sides uses twined copper wire as busbar. Hot glue gun to make pack sturdier...

Doing this kind of support is advanced stuff to do especially if you are a one man company and also when you are dealing with a trade overseas. Warranty and repairs will be harder than going to a local store. Track your parcel and se if it has arrived or have been picked up. Detective work, Yes but ...

Buy this instead:
https://www.aliexpress.com/item/3000W-B ... 80998.html

I recommend the charger as well. I have it. Its pretty powerful. Just if you buy it, pay extra for shipping if you want it fast!

Find 12v or 5v brake settings. High or low voltage brake and turn it off if you have it. Mine did also brake in the begining and stopped after I turned of that setting. It is weird that it is only on that setting it is deaccelerating as you specify. Also when going fast of course you'll lose alot of...

Currently I am making a small, lightweight, sporty electric motorcycle, and am planning on using the 20kW cyclone hub motor. I'm aware that the 20kW is the peak power, but I still think it's a good choice for it's price. The only problem is the batteries; I'd like to make my own custom battery pack...

Usually those 21700 have a cut-off-voltage of 2.5V. Most of the BMS have a cut-off at 3V and from my experience with a battery US18650V3 from Sony (now Murata) I used it for over 6 years, so around 1200-1400 cycles (not complete cycles). The battery lost over the time around 20% of its capacity, bu...

For battery I am planning to have alt #1: 300 cell NCR18650PF 2900 mAh 5C 20S 15P 43.5AH with 24S 80A BMS from Dark Horse alt #2: 300 cell NCR18650BD 3Ah 10C 20S 15P 45AH with 24S 80A BMS from Dark Horse Hope there is some inputs from you guys on how to maximize the convertion. I just realized. If ...

Nice project and best of luck! I recommend you to get a larger battery or you have to lower your power level. Now your battery can be used at about 84v x 100a for a power of 8400 watts. For continuous use I would have to test first and to test a battery after its been build already is kind of a expe...

I have a few chargers I have found on Aliexpress https://www.aliexpress.com/store/product/Li-Ion-Battery-72v-3A-4A-5A-6A-7A-8A-9A-10A-11A-12A-Adjustable-Current/4450039_32914065128.html?spm=2114.12010612.8148356.18.792d1fa7wPkbW1 This, and and most others, will do CC at 12A until they hit a certain...

Yes I can put a temperature monitor between the cells thats a good idea, what temperatures in deg C should I lookput for? I'm not sure if they will be getting super hot, the spacers should give them room to breathe and they are not going to their 10a per cell limit Let me know if you have any thoug...

I'm building a 21s15p pack split into 3 layers (for size and balancing contraints) - no BMS each string 10 cells LG mj1 + 5 cells PF Any battery building advice would be greatly appreciated I have a question. Will you remove the pack and charge it as three individual 7s packs each time you decide t...

I was seriously looking at this bike for some time but there were some issues reported on a french forum dedicated to this bike that turned me off. Do you have a link to that forum? It's the first time I hear of these problems. If they are common then I hope these will be addressed soon as it seems...

sorry for late post. but i reverse engineered the yamaha battery a year ago. in case you want to build your own. Just get a Arduino compatible board and a few discrete components. Add a 5V source, i usually use a LM2596HV dc dc converter for this. A USB powerbank or even running it from two or thre...

One Super Soco TS available in Nuneaton near Birmingham, United Kingdom.

Not me. If someone likes to get their hands on one or just eat a banana

So I have these bricks of 2, 3 and 4s about 32ah each togheter into a big 17s15p. I want to connect this newly build 17s 32ah battery to another battery of 17s and 26ah that has a bms with max 35a current capability. I wonder what will happened with the load distribution since one battery is about 2...