Is it OK to use A123 stock tabs?

Stock tabs are fine - they were tested in this thread on RC Groups. See #18 for discussion on tabs - he calculates a tab resistance but his testing is for his planes current draw, 35amps.

This thread is also a great reference on building and using a123s. It encompasses about everything there is to know about rc useage of a123s, either directly or with links to other material.

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

[tino_ale]

Hi all,

Does anyone knows which size of shrink tube I need to make 3S A123 flat packs? (not stick but three A123 in parallel in a flat arrangement).

Anyone has a good online source for these heat shrink tubes, input very appreciated

thanks everyone

Last item on the page - specifically for a123s -

http://www.cheapbatterypacks.com/?si...07&pgid=shrink

[tc3_racer_001]

out of stock?

http://www.maxamps.com/products.php?cat=180

The prev link was for size.....

MA's shrink is sized 140mm. They also have it in clear if you backtrack up this link.

[tino_ale]

Just ordered a couple of foot of it. Thanks!
I can't wait to make my packs and I can't wait to see how they will be done charging in 15 mins. Already received the FMA 10S and it's begging to heat up some batteries

[VintageMA]

I am very curious how you guys balance your A123 packs (or if you even do).