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I mean if i check the batteries with a multi meter what would be my reading to know when to charge the batteries? Like do i charge them when they each read 8v or less. What voltage am i looking for before charging again?

Question. What should each 12v 18ah battery read with meter before charging?

I fixed it. I soldered a male terminal and works like new. Im going to sell all of them anyway but i have to use these one more time for tmrw because the other battery can take all day to get here. Thanks.

I have a steel frame but i have decided to just sell 3 batteries for $40. I accidently connected the positive wire to the negative terminal and it got fried and melted on the 4th battery so im stuck with 3. Can that be fixed? And is it worth fixing for sell? If not i might just send it back to...

New question guys. So i went ahead and bought bigger batteries. 12v 18ah so series connection gives me 48v 18ah but i still have four small 12v 7ah. Can i connect thefour small ones in parrallel and then connect the 2 banks together for more capacity? So to simplify it. Four 12v 18ah in series...

Hey mark thanks. I went ahead and sold 2 batteries to a neighbor so i can start buying the right battery size and delete the hassles for good. I already have 1 and was able to get another so 2 down 2 more to go.

I have a controller that came with it but separate. I tried even 36v a set of 3 sla and it still did not work so it must have a low voltage cutoff. I just added 4 sla and left it like that because my understanding that an extra 5th battery will cause it to die quicker. I was using 5 before and...

Hey mark i tried ot but it wont power my motor??

awesome! so in this diagram I see the 36v but what would be my ah? just to recap I have six 12v 7ah batteries.

Ok 2 more questions. How much less speed. Its going close to 30 now? Also how do i do series parallel connect can you show a diagram? Or drawn out picture please?

I already have 6 batteries 2 more wont hurt. This bike flies with that weight. But i am going to just sell them and get four 12v 18ah batteries instead wich will be 40lbs but in the mean time can i use these 6 batteries and create 36v and higher ah in series parallel connection?

Awesome. Thank you. Ok so i would connect both banks of 4 in series and then connect parallel right? Ok so where will i connect it in parallel because i have seen different parallel diagrams. I understand the series for both banks i just need the parallel connection for proper installation. Thanks

I have 6 lead acid batteries i need 48v and 20ah but i know it wont work with 6 batteries so can i create higher "ah" and "volts" with a series parallel connection of the 6 batteries? If so please show diagram even if its drawn on paper and let me know what would the new volts and amp hours be?

Yes because your bikes run time is based off of the capacity of your battery. So if you use a 48v 7ah battery you will not see more then 5-6 miles on average with a 200lb body on it like me. If you weigh less then u will go probably just a few miles more because 7ah is very small. Now 20ah at my...

Yes but thats because the ampere hours are the same. The mph will vary

Yes you can put higher volts but i wouldnt over do it because it wont work anyway and if it allows u to do so u can burn the wires. For example i have a 48v 1000w 20ah hub motor and i am currently running 5, 12v 7ah wich makes 60v 7ah on it and i have not had a problem but then again i throttle...