the wife's hair dryer didn't work ?
buy a battery load tester
can not use on cells in series (over 12volt)
but you can discharge a single cell
or whole pack wired in parallel 3.2 volt pack
can adjust from 1 amp draw to 50 amps
need a small fan on charge tester to cool it, 4'" fan is best
I usually only pull 30 amps from a 60Ah cell or pack
Odd thing about one I use is if you turn amperage knob to off
it will still pull amps. had to turn father to left, felt like knob was unscrewing but wasn't
before you use, check it on a car battery
make sure when knob turned down pulling no amps
as if it is will get sparks not good , just have to get used to it
and you have to be monitoring voltage drop don't let go past 2.7 volts
no reason to go near 2.5 volt. I guess you got that already.
500 Amp Carbon Pile Load Tester $69.99
will need 80mm, 120 volt fan to cool
the one I used only pulls 70A most from 60 AH thundersky
http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=91129Power supply 3.5v @10A and 5v @32A 420 18078-PS
www.Mpja.comAll electronics has lots of stuff at low prices
Are you charging and discharging One cell at a time?
oh I see you charge 72v charger then finish off with tenergy charger
good luck