which end of a123 cell does balance wire solder to

[psycho_fling]

Hi all

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

thanks alex

[beast]

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

[widow_twanky]

This explains it quite well

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

Andy

[psycho_fling]

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

[rallikas]

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

[typhoon_driver]

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?

[psycho_fling]

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

[psycho_fling]

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

[widow_twanky]

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

[typhoon_driver]

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