Hey guys I need some help. I am trying to get a estimate on charge time with the following equipment.
Yamaha 2000 watt Gen (1600 cont)
2x dell 6650 server power supplies (24V, 1800 watt, 72amp)
2x Icharger 3110B
I will run both chargers at the same time and will be charging 2 packs in parallel off each charger.
I would like for someone to check my math.
Icharger can only charge 6s packs at 756 watts do to
Taking account for charger efficiencies
756 / .8 = 945watts from PS
Taking account for power supply efficiencies
945 / .8 = 1181 watts from generator
So 1181 watts from generator will allow me to run one icharger at max capacity while charging 6s lipos.
But what if I run two chargers. Accounting for the loss in the power supplies, 1600 watts of continueus power should provide 1280 watts input to the chargers now accounting for loss in the chargers there is 1024 watts available for charging.
1024 watts / 25.2V = 40 amps
This will allow me to run both chargers at 20 Amps when charging 6s lipos.
Finally two questions.
1. How quickly (meaning time in minutes) will I be able to charge?
2. Should I run two chargers at 20 amps or one at 30 amps?
Thanks guys I know this is a long post with a lot to it.