BMS stands for the battery management system.
This is a BMS with a 22V voltage rating to charge 6 cells of Li-ion cells.
The module comes with overcharge protection, over-discharge protection, short circuit, and over current protection features.
It is mostly used for solar lighting, for dedicated 18650 battery packs.
Specification
Size: approx.50*30*2mm
Lampshift maximum discharge current: 12A
Instantaneous discharge current: 20A
Charging voltage: 25.5V
Charging current: 15A (MAX)
Overcharge detection voltage: 4.28 ± 0.05V
Overcharge protection delay: 0.1S
Overcharge release voltage: 4.08 ± 0.05V
Over discharge detection voltage: 2.55 ± 0.08V
Overdischarge detection delay: 0.1S
The overdischarge release voltage: 2.9 ± 0.1V
Overcurrent detection voltage: 150mV
Overcurrent detection delay: 9MS
Overcurrent protection current: 30 ± 3A
Overcurrent protection release condition: Disconnect the load
Short circuit detection delay: 250uS
Short circuit protection Release condition: disconnect negative open
Main circuit conduction resistance: ≤20mΩ
Working current: ≤30uA
Sleep current (battery over discharge) ≤10uA
Temperature range: -30 / + 80 °
B+ connect Battery positive end
B1 connect the point between battery 1 and battery 2
B2 connect the point between battery 2 and battery 3
B3 connect the point between battery 3 and battery 4
B4 connect the point between battery 4 and battery 5
B5 connect the point between battery 5 and battery 6
B- battery negative end
P+ Charge/discharge positive end
P- charge/discharge negative end
Package Includes
1 x 6S 22V 18650 BMS Lithium Battery Protection Board.