I have a MRC Superbrain 989 and a TrueRc 7.4 2S2P 6400mah Li-Po.

I left the battery plugged in to my Mamba 6900kv system overnight by accident. Now the charger won't charge the battery (Equinox balancer wont discharge either). The charger says the battery voltage it too low to charge (~2.4V). I am assuming the worst... A month old $80 battery is gone... What do I do? Am I missing something?