6 months and I've decided to make some 6 cell packs out of them and try off-road.
When I put the first pack on a trickle charge after a minute or so it went to 12v and pushing the charge button (rate set at 5 amps) it jumped to over 16v in less than a minute.
So after unpluging it because "that can't be right surely"...I discharged the whole pack until it read 5.4v and let it rest for a few seconds and plugged it onto the charger. This time the voltage while trickling was around 11.5v but when I pushed fast charge (again at 5 amps) it went to just over 12v but was going up very very slowly from there.
I unplugged the charger as I wanted to check here first before giving a full length charge.
But as it stands now, after discharging the pack to 5.4v volts again, and letting it rest, I'm getting approx a 1.75 volts reading out of each cell.
Which should be a reading of around 10.5 for the whole pack but it's reading over 11?
As these are my first 6 cell packs in ages, I used to run 1500 mah in 540 stock in NZ before switching to 4 cell 12th (19 turn), I'm wondering are these numbers normal when bringing nimh cells back to life so to speak?
Or does it indicate they are toast?
Almost forgot...they were stored as 4 cell packs with 3.6 volts left in each pack.