How do you know what Bottom Bracket Size to get? Also will you post how you are going to build your own battery?
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Originally posted by Bassdeer View PostHow do you know what Bottom Bracket Size to get? Also will you post how you are going to build your own battery?
just measure the bottom bracket on the bike you want to install it on. (metal to metal only, ignore any nuts)
some kits are sold with a range and include spacers like 68mm-73mm and 73-100mm. goes up to 120mm which is what bike 2 really needed. I ordered a 100mm and ended up grinding the non drive side down to about 90mm to fit it.
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Started on the battery build tonight. I had ordered a fancy 70 cell holder that somehow got lost in the mail. I’m too impatient to wait on it as I’m trying to have this ready to roll for this weekend.
Start with quality cells with amp ratings where you need them. I need to be able to run 30 amps for my motors controller. So I chose to use the LG HG2
Charge them all up to same voltage and lay out the design. Rectangle/ triangle etc. I’m doing a 52v nominal battery. 14 series 5 parallel. ( 14s5p). It will have 58.8v at full charge and will cut off at 42v. Each cell is 3000 mah so it will be 15AH.
14s5p layout
Started to spot weld nickel strips.
That’s were I stopped. My spot welder battery needs charged. I’m using an Arduino spot welder . Basically a raspberry pi little micro controller programmed and hooked up to a 12v battery. Can use car battery or Lipo. I’m using a Lipo.
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Yes people. All I usually hear also when Wes talks about battery stuff is blah blah blah battery blah blah charge. He definitely is the Sheldon Cooper of batteries and anything that has to do with hydrogen powered transistor lithium magnetic light producing sound waves affiliated with power producing charges and electromagnetic waves.[emoji23][emoji23][emoji23]
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Originally posted by Texas Stalker View PostYes people. All I usually hear also when Wes talks about battery stuff is blah blah blah battery blah blah charge. He definitely is the Sheldon Cooper of batteries and anything that has to do with hydrogen powered transistor lithium magnetic light producing sound waves affiliated with power producing charges and electromagnetic waves.[emoji23][emoji23][emoji23]
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there was 1 guy asking for it, blame him.Also will you post how you are going to build your own battery?
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Finished battery up. Wired up the balancing leads for bms. Soldered on the discharging and charging cables with xt90 and xt60 connectors, wrapped in kaplon tape , used a foam cushion and heat shrink tube.
Fits perfect in the battery bag. Not real pretty but that’s what the bag is for
I’ll also make a lithium 12v pack and run a 12v cube spot led light on it for headlight.
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Originally posted by sweetinlow660 View PostWhich bike is the plus bike? And how much is way less than you have in it?
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