How do I make a balanced battery pack?

[poormanq45]

I want to build a battery pack consisting of atleast 3 26500s in series. Maybe 3 more in parallel if it's possible to have them on one circuit.

I want to make this in to a pack and attach a charging pack. To do this safely it should be balanced, correct?

I understand the reason behind this. To make sure no individual cell is overcharged relative to the other cells.

How should I go about making a balance circuit? Google didn't give much information to circuit development.

I am using a hobby charger similar to the Turnigy that is recommended on this site.

Thank you for your help

 

[poormanq45]

Anyone?

 

[T0RN4D0]

Well i don't know much about this yet, but my logics tells me you must put a wire in between every joint of the cells (and in the front and in the back)... And wire it correctly to the balancing area. =) And then add the charging leads to fron and the back of the pack...

Anyways just my guess :D

 

[poormanq45]

Thanks for the reply.

It looks like the easiest part is to do like you said and add a wire between all joints and at the end.

Apparently it is hard to find the actual balancing plug for the other end...

http://www.candlepowerforums.com/vb/showthread.php?t=241266&page=2

 

[ubetit]

An oldie but a goodie

http://www.rcgroups.com/forums/showthread.php?t=599316