Your venom charger has a Pb charge mode, so you can charge that batt with your charger. These batts respond best to low rate charges, I use 2 of these type cells and charge mine at 750ma. You can charge at 1 maybe 2amps at the most.

The suggested charger is a wall type charger that supplies 600ma and they tell you to charge it 'overnite'. Your Venom charger should tell you when its charged.