Please help! I am trying to run a 16 pill X force amplifier with a 400 amp motormaul. I have (4) four 900 cca batteries connected to the maul. I am running a 200 amp alternator. Here's my problem; once I dial my voltage up on the maul, let's say at 17 volts. When I key my amplifier via the maul, the voltage drops to 10 volts! I have even dialed up the volts on the maul to 22.5 volts and once the amp is keyed. the voltage on the maul drops to 14.23 volts. I even tried an 8 pill and dialed the maul up to it's limit. (22.5) only to see the volts drop to 15.73 The batteries are brand new having purchased them about a month ago.