Hi if you left them sit for seven years without charging they are definitely bad NIMH loses 20 % of there charge after only a few days if not constantly conditioned charge to keep the voltage of each cell in the pack high enough they go bellow .9v cell and when they drain lower the cells reverse and then when you try and recharge they are reversed and no longer good anymore from sitting and draining below normal levels..... the li ion pack is garbage cheap non hi power cells are in it.
Do you have a peak charger? at what voltage do they go up to when they start to get warm right before they peak and shut off? bet it's way over 10V
just letting you know I know about this stuff been doing it for ever. just look at my youtube channel ( shenlonco)
Originally Posted by
pcsguy88
They both have about 1800MaH's of useable charge and still run my 3:1's as fast as ever (even faster with the 2.4). Remember, they've been on ice for 7yrs and all research says age has no effect, only charge cycles. I'm guessing you have not seen these new wave 4:1 gearboxes in person and just how slow they are, but I can assure you the low end performance is incredible and addictive. The Li-ion that came with the Leo performs exactly the same as my NiMHs.
Anyways, it's on my to do list, but not a rush.