2S 5a PCM BMS for 7.4V Li-ion Li-polymer 6.4V LiFePO4 Battery Pack With Power monitor and balance(PCM-L02S05-D79)

Technical parameter

Product name:Protection Circuit Module
Model No:PCM-L02S05-D79 
For 2S 18650/18500 Lithium-ion/Lithium Polymer/LiFePO4 Battery Packs
Product Feature:
1. Suitable for 2S Lithium-ion/Lithium Polymer/LiFePO4 Battery Packs;
2. Measuring IC adopts BQ4050/BQ40Z50, which can read parameters such as voltage, capacity, current, temperature and cycle times.
3. Overcharge, over discharge, short circuit, over current, temperature protection, etc.
4. Maximum continuous working current 5A, charging and discharging at the same port;

No.	Test item(Test at normal temperature 25±2℃ )		Criterion
1	Communication Interface		SMBus
2	Capacity	Designing battery capacity(PCM)	2200mAh
		Max capacity(Battery pack)	7000mAh
		Min capacity(Battery pack)	500mAh
		External capacity Indication	LED
		Gas gauge algorithm	CEDV
3	Voltage	Charging voltage	DC:12.6V CC/CV(4.2v/Cell)
4	Balance	Cell-balance window	100mv
		Balance Resistance	100R
		CCC Voltage threshold	3.27V
5	Supply Current	Normal mode(Firmware running, no flash writes)	500uA
		Sleep mode	300uA
		Shutdown mode	1uA
		Maximal continuous charging current	5A
		Maximal continuous discharging current	5A
6	Over-charge Protection  (single cell)	Over-charge detection voltage	4.25±0.05V
		Over-charge detection delay time	1S
		Over-charge release voltage	4.05±0.05V
7	Over-discharge protection (single cell)	Over-discharge detection voltage	2.50±0.05V
		Over-discharge detection delay time	1S
		Over-discharge release voltage	3.00±0.05V
9	Short protection	Detection condition	Exterior short circuit
		Short protection Current	6~10A
		Discharge short-circuiting detection delay time	200-800us
		Release condition	Cut load
10	Resistance	Protection  circuitry	≤30mΩ
11	Temperature protection	Charge temperature(1st Level Safety)	55℃
		Charge temperature detection delay time (1st Level Safety)	2s
		Charge release temperature(1st Level Safety)	50℃
		Discharge temperature (1st Level Safety)	60℃
		Discharge temperature detection delay time (1st Level Safety)	2s
		Discharge release temperature(1st Level Safety)	50℃
		Charge temperature (2nd Level Safety)	65℃
		Charge temperature detection delay time (2st Level Safety)	0s
		Discharge temperature(2st Level Safety)	75℃
		Discharge temperature detection delay time (2st Level Safety)	0s
		Operating temperature	-40~+85℃
		Functional temperature	-40~+110℃
		Storage temperature range	-65~+150℃
Dimension		L54*W12*T4mm
B+:Battery+
B-:Battery-
SMBD:SMBus data line
SMBC:SMBus clock line
P+:Charge+/discharge+
P-:Charge-/discharge-