let me get this straight. You want to charge the batterys from the
motors that are draining them.
On 4/11/11, james4078 <james4078@yahoo.com> wrote:
> I was wondering who knows the answers to these questions?
> I am putting together an array of 6 marine deep cycle batteries to make a 72
> volts battery bank.
> I ordered 2 PMA's (permanent magnet alternators that charges up to 300amps)
> to recharge the batteries (each PMA to charge 3 batteries)
> There is one 72volt/300amp motor controller running two 15/20hp Permanent
> Magnet electric motors as the primary drive and the two PMA's will be driven
> off these to recharge the battery bank.
> I want to recharge the batteries individually using 2-12v regulators to
> regulate the PMA's down to 12volts(voltage usually increases with the
> rpm's). 12 blocking diodes to go each battery (6-negative terminals,
> 6-positive terminals) to allow each battery to recharge without any drawback
> form the battery bank.
> As the consumption of the drive motors increases with the rpm's so will the
> output of amps from the alternators thus trying to get as close to a 1-1
> drain to charge ratio as possible.
> So here are the problematic questions:
> #1 What size voltage regulators do I use to handle these 300 amp PMA's
> #2 Where do I get them?
> #3 What size blocking diodes are suggested as well?
>
>
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