MJSfoto1956
10 kW
madin88 said:... on BMS with common charge and discharge port, the discharge current has to flow through two banks of Mosfet's, whereas on BMS with separte ports for controller (P-) and charger (C-), the discharge current just has to flow through one bank. This means they can reduce the number of Mosfet's on the bank for the charge port which would explain the lower price.
common port:
pros: usually identical max allowed charge and discharge currents, protection against overcharge from regen (or charge via controller)
cons: more heat at given discharge current
separte port:
pros: less heat a given discharge current
cons: usually lower max allowed charge current, no protection against overcharge from regen
Thanks for the succinct explanation!
M