Patent ID: 11863059
Assignee: REDLER TECHNOLOGIES LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  H  Y | IPC B  H

Claim 17:
18. A method for low-voltage charging of a plurality of batteries, wherein said method comprises:
obtaining a system comprising a plurality of VPSU units according to claim 9;
for each of said VPSU units:
obtaining a plurality of batteries;
connecting said batteries into at least one stack, wherein within each stack, said batteries are connected in series;
if said plurality of batteries comprises more than one stack, connecting said stacks of batteries in parallel; and,
connecting said plurality of batteries between, and in series with said lower column switch (31n) and said charge/discharge switch (35n);

connecting said plurality of VPSU units in parallel via their upper column switches (34n);
connecting one of said VPSU units to a battery charger via its upper column switch (34);
using said battery charger to charge said batteries at a charge current and charge voltage until said batteries are charged;
for each VPSU unit, independently controlling voltage and current output by an analog output of said MCU of said VPSU unit; and,
for each VPSU unit, regulating current by switching a DC/DC bridge of said DC/DC converter with an SD signal of said MCU.