Noob question thread! šŸ˜€ ask your questions here!

Hello, I have this Li Ion battery of a hoverboard (new condition https://imgur.com/a/ebDjDsV ) is it possible to use this one to power a eboard? If so, would I just be connecting the XT60 to the ESC of the board or am I supposed to do this otherwise. Also how would one be charging this bms? I only see a P-, but donā€™t I also need a P+ to charge it? Would I be able to charge it with a charger like this? https://hobbyking.com/en_us/imax-b6-50w-5a-charger-discharger-1-6-cells-genuine.html

Thanks for the help!

Hey guys, I need some help rebuilding my evolve GTX. I fried the esc, and have ordered a Focbox unity, with a raptor remote. Now i need help figuring out the BMS. im rebuilding the battery to be a 10s4p with Sony vtc6 cells, and i read that an 80a BMS would be good for this. here is what im looking at : https://buildkitboards.com/products/bestech-bms?variant=16115585319006 Would this be right? and where do i look for a guide on how to hook it to the battery? Im also wondering if ill be able to use my stock evolve charger with my pretty-much all new setup. everything is being changed except for the motors. also, not that i care that much, but will i be able to go backwards?

Also @BruSkater a good indication that your belt is aligned perfectly, is that you can hand-turn it forward and watch which side the belt moves to ā€“ and if you then hand-turn it reverse and the belt goes to the opposite side, then itā€™s not quite perfectly aligned. It might work, but itā€™s better if you can get it perfect. Thatā€™s usually indicating the clamp on the hanger might not be perfectly perpendicular.

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Yes, I realized that, and in fact it moves around depending the direction, but I find it quite difficult to align the clamp, I did all I could, but when you tight the screws physics is just going to do its thing and move the clamp a bitā€¦ But the misalignment seems minor, hope that is not a problemā€¦

But getting to the original question, is there a problem to have the belt so close to the wheel @b264?

Not really. Iā€™ve ridden when they were touching the wheel before. It makes an annoying noise. LoLz

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Iā€™ll be assembling parts tonight. Super excited! I want it to go smoothly, what vesc tool is recommended currently? I am using the Flipsky 4.20 updated resistor version. I think I remember reading that lower voltage was recommended for the initial setup of the vesc, what voltage? I only have my 10s4p and 12v sources available really.

dose anyone now were to buy a reliable 12s4p for under 400

Which one do you want? You may choose.

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thats what i feared

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would this be good ? https://www.mboards.co/products/12s4p-complete-battery-solution

That charger is complete crap. Mboards takes forever to get the product shipped. I can sell you a 10s4p pack with a charge only bms for $315 right now. It will ship within 2 days of your order

thats tempting but i need 12s4p battery because its way op for anything lower

the charger i mean

it can charge a 12s4p in 25 min from empty

To charge a 12s4p 30q you would need a 25a+ charger to charge in 25 minutes. That charger is 1.5a and will take over 10 hours to charge from dead to full

A 25a charge isnt possible on a 4p pack. It will explode

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It definitely depends what cells. If youā€™re using lead-acid, you can probably charge a 4P battery at 25A.

If youā€™re using 30Q, I wouldnā€™t charge 4P at 25A for more than about 5 seconds at a time. Thatā€™s 2.25C.

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But who on earth uses a 12s4p lead acid packā€¦

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I mean thatā€™s hella power though, 144V 3600A

How are you getting that amp rating? What battery

If you donā€™t specify which cells youā€™re talking about, you really canā€™t talk about it at all. Because itā€™s almost certainly false information. Youā€™re making assumptions and you can cause someone else to have a fire by making assumptions.