Testing individual Batteries to make a good pack?

ya think ? ...lol ... i would !!
also it is good to match batteries to with in .5v so they are equal in the charging cycle
if you put 3 good and 3 bad in pack the good will be brought down to the bads

[loneranger404]

Originally Posted by crash test dummy

first fully charge each pack and let sit 12hrs
test each battery with a DVM


put 6 best readings together for one pack
then next 6 best as 2nd pack
last 6 together
any under 8.3v (75%) charge are on the way to dieing

Quick question; when testing each battery separately, do I need to disconnect each battery?
Second question, what do you mean by "never discharge below 50% ?

[rib33024]

No you do not need to disconnect any cables to test each battery. 6 volt batteries should never be run lower than 6.05 volts of a fully charged battery, and a 36 volt pack never below 36.3 that's 50% of the volts, when a battery or the pack is at 50% it needs to be charged