Im looking for A123 battery articles and How do's..I have read some would like any info..Can take out of Battery packs..saw Video on youtube,,anybody know MAH of the 36 v batteries..Any why use these instead of Li=po's..fast charge for one..Comments appreciated in advance.
.Have a Good Flying Day..

This is a pretty good article on how to build an A123 pack from a Dewalt battery. http://www.rcgroups.com/forums/showthread.php?t=599316 I just buy my cells from BPHobbies instead of disassembling a Dewalt battery.

If all the cells are in series then the capacity is 2300mAh.

Some advantages are no puffing, not easily damaged, can be discharged 100%, and lasts over a 1000 cycles. I use them in my big helicopter and love the batteries.

They can take being landed in heavy grass with the motor still pulling tons of amps. I do it quite often by accident. I am 71. [:'(]
ABSOLUTLY no changes to the batteries. LIPOS would be puffing of trying to burst into flames. Either of those conditions wipes out the battery and means a replacement.

If you THINK CAREFULLY before cutting the jumper straps between the groups of 3's or 4 cells, you will NEVER risk soldering directly to a battery end. I always make each pack into 2..3 cells & 1.. 4 cell.

I now cut a 4 cell into 2..2 cells.. for a high KV motor used in pusher planes. Piece of cake.

Try to ONLY..ONLY solder to the cut in 1/2 jumper straps. It is possible to overheat a end of a cell if you solder without the strap on it. The welded on straps are very good connections.

Quote ".....I am 71. ...." Quote

You are but a child__________ !!
Everything is relative.

When I fly, It looks like a child is the pilot.