which end of a123 cell does balance wire solder to

Hi all

Quick question which polarity end of the a123 cell does a balance wire solder to???

thanks alex

the pos end which looks like the neg end of a normal battery

This explains it quite well

http://media.hyperion.hk/dn/a123/packas ... ckassy.pdf

Andy

ok cheers guys

just wondering now as one cell isnt taking any solder is it bust????

http://s737.photobucket.com/albums/xx17 ... g&newest=1

pictures above show the end where i have been trying to get a joint even other one seems fine

??????????

cheers alex

I use some sandpaper to get good rough surface for soldering?

clean the crap off first. Secondly what sized is your soldering iron?

Are you giving the iron a good half minute between applications to let it heat up again fully?

yeh the soldering iron works well on the other cells and its heating up for a while ill try removing the crap see what happens


thanks

hi all got a few more questions for you all :)

1)i have finally found the right balance wires with the right amount of wires etc, but i'm not sure which colour i need to wire up to which cell (ie one colour is going to be the negative one). I presume it makes a difference as to the way they go into the balancer any help???

2) whats the best way to protect the bottom and tops of the packs? as currently i don't think heatshrink will be good enough on it's own. ???? note the blue wires are the old balance wires i was goning to use they will be removed and replaced with new (see above)

pictures (labbeled)

http://pbckt.com/sS.i7t

thanks alex

You need to have a look at your charger to find out where it wants to see the negative. Once you know this you can wire it up to match.

Andy

Check the documentation with your balancer. It should tell you where the negative etc goes

Get some silicon rubber from technobots for the packs. http://www.technobots.co.uk/acatalog/Sh ... t_105.html