PCM with Equilibrium & Temperature protection function for 25.9V Li-Ion Battery Pack (15A limit) --- 5 pcs minimum order (#7129)

This protection circuit is specially designed for 25.9V Li-Ion Battery pack with 15A discharging rate. Different than normal PCB, it provides equilibrium function after battery pack is fully charged. PCM will detect each cell's voltage and trim higher voltage down until other cells reach the same voltage level. Therefore, it helps Li-Ion cells have longer service life.

Protection Circuit Module Specifications  For 25.9V Li-ion/Li-PO Battery  Pack (7 cells)
Model: PCM-LS7A15T
No.	Test   item		Criterion
1	Voltage	Charging voltage	DC：29.4V  CC/CV（4.2V/1Cell）
		Balance voltage for single cell	4.20V±0.025V
2	Current	Balance current for single cell	75mA±10mA
		Current consumption for single cell	≤20μA
		Maximal continuous Charging current	5A
		Maximal continuous Discharging current	15A
3	Over charge Protection	Over charge detection voltage	4.250 ± 0.025 V
		Over charge detection delay time	0.5S-2S
		Over charge release voltage	4.150 ± 0.050 V
4	Over discharge protection	Over discharge detection voltage	2.50 ± 0.080 V
		Over discharge detection delay time	100-250mS
		Over discharge release voltage	3.00 ± 0.100 V
5	Over current protection	Over current detection voltage	0.10 ± 0.015 V
		Over current detection current	50±10A
		Detection delay time	5ms-20ms
		Release condition	Cut load
6	Short protection	Detection condition	Exterior short circuit
		Detection delay time	100-600us
		Release condition	Cut load
7	Resistance	Protection  circuitry（B- TO P-）	≤40mΩ
8	Temperature	Operating Temperature Range	-40～+85℃
		Storage Temperature Range	-40～+125℃
9	Dimension	LxWxT	L80.5 x W72 x T12 mm
10	Specification in pdf file	Download specification

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Warning

• If you want to use this protection circuit board for a battery that is less than the rated drain, you must add additional protection device to protect the battery itself. Such as: proper rated polyswitch. 
• To achieve balance, each cell in battery pack must has equal voltage within tolerance. When charger LED turn Green, allow 30 minutes for pack to balance before use.
• You must be professional in Lithium battery pack to buy the protection circuit board. Misusing may cause battery damage or explode. We are not responsible for any damage caused by user.