i am P3A user. The charging and balancing circuitry is built into the battery itself. All we need to charge the battery is that provide power to the battery ( pure sine waves ). the original charger is 57W, it takes so long to get battery fully charged (+80minutes), and one a at time. i am going to charge 2 or 3 batteries at once. i intend using this combo : Power supply 24V 50A, cellpro powerlab 8, DC-DC step down converter ( 24V to 17.4V). using PL8, i can adjust current (up to 30A) to get current output, then it goes through step-down converter, then i have 17.4V and current that provided by PL8 (higher 24/17.4 times actually). Then i use this current, 17.4V x.A as original P3A's charger to charge the battery. Will this combo work without any damages for the battery or fire something.