I got myself a new charger, if nothing else so I could have something to put the batteries into storage mode. I have a few questions for the experts here. Using the charger's internal AC power supply, I can only get a max charge rate of 3.2 AMPS. Is this normal for a 100 watt charger? I have a good 8-14 volt DC, 45 amp power supply but I do not have a connector to use the DC in port (have one on order). Will using an external DC supply allow me to charge at a higher rate? The Hitec did charge quicker than the Yuneec charger, but I know the battery can safely recharge even quicker.