yeah I agree, but how do you deal with balancing on something like the the HCX-D729V1. I guess they are working by just cutting off the charge when the frist p-group gets to the max-voltage. so in time your battery will get out of wack and you will loose capacity and might see problems with over discharge, if you don’t have the min-voltage cut off set very high on the Vesc? or am I missing something?
I’m just scared of digging through mean well stuff, it’s like trying to find a SMT resistor you just dropped on the floor.
I use meanwell HLG series. I connect them strait to BMS or PCM. The A models have trimpot to adjust voltage and current.
PCMs work by bleeding cells. Usually they are electronically preset to 4.3V. When a cell reaches that it cuts off the charger through mosfets and starts bleeding high cell. Then it kicks back in and repeats process untill all cells are equal. Low voltage protection is the same. Power os cut off through mosfets if at least on cell reaches preset voltage.
What i do is i connect all lights and accessories to BMS/PCM output (P-) as well as small spst relay (coil positive to battery + and negative to pcm P-) then controller ignition or activation wire to that relay control. When cell reaches low voltage, supply to relay coil is disconnected and controller ignition switches off.
I dont know where you are but our electronics retailers have them so they are not rare if you are asking about chargers. PCMs are from china only and bestech is 2 units minimum.
