Q&A: How do I connect the batteries for my electric bicycle together?

by Squiggle

Question by Bruce M: How do I connect the batteries for my electric bicycle together?
I bought a bicycle kit from someone online. But, since they didn’t have batteries for it, I bought those seperate. But I stupidly bought 4 12volt batteries to equal the 48volt battery needed…is there a way to connect these 4 together now?

Best answer:

Answer by Bob A
You want to connect them is series so they add up to 48 volts.

(-) neg of bat #1 goes to the black wire on the bike.

(+) pos of bat #1 goes the the (-) neg of bat #2

(+) of bat #2 goes to the (-) of bat #3

(+) of bat #3 goes to (-) of bat #4

(+) of bat 4 goes to the hot wire on the bike.

You want to use the same gage wire that is on the kit or larger.

What do you think? Answer below!

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