Hardware installation & connection
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2. Connect the four 12Ah batteries (10Ah to 30Ah).
Only connect the four 12VDC batteries of the same voltage, capacity, type, brand and age.
Danger Electrical shock! The installation and wiring of batteries must ''only'' be operated when
the AC power supply is closed.
Before powered on the BTQ-VM4W/VM8W, please use the electric meter to measure the battery
voltage (43.2VDC ~ 60VDC total).
The BTQ-VM4W/VM8W has two terminals (PBAT+ / DGND-) for connecting to the batteries.
1) Connect the DGND- terminal to the - terminal of the first battery.
2) Connect the PBAT+ terminal to the + terminal of the last battery.
3) Connect the the rest of three batteries in series, see the picture as below.