4s 7A BMS for 14.4V 14.8V Li-ion/Lithium/Li-Polymer 12V 12.8V LiFePO4 Battery Pack with Smbus and Ntc (PCM-L04S07-453)

• Metal Coating: Copper
• Mode of Production: SMT
• Layers: Multilayer
• Base Material: FR-4
• Certification: RoHS, CCC, ISO
• Customized: Customized
• Model NO.: PCM-L04S07-453
• Condition: New
• Specified Types: 4s Li-ion/Li-Polymer/LiFePO4 Battery
• L-Ion/Li-Polymer Charging Voltage: 16.8V
• LiFePO4 Charging Voltage: 14.4V
• Max. Continuous Charging Current: 7A(Max)
• Maximal Continuous Discharging Current: 7A(Max)
• Discharge Overcurrent Protection: 16±5A(Adjustable)
• Colour of PCM: Green
• Balance: No
• Warranty: 12 Months
• Transport Package: Antistatic Bag /White Box and Standard Export Cart
• Specification: L35*W30*T7mm
• Trademark: QUAWIN/OEM
• Origin: China Guangdong
• HS Code: 8507909000
• Production Capacity: 500000/Month

Product Description

Technical parameter

Product name:Protection Circuit Module
Model No:PCM-L04S07-453
For 4S Lithium-ion/Lithium Polymer/LiFePO4 Battery Packs
Product Feature:
1. Suitable for 4 section Lithium-ion/Lithium Polymer/LiFePO4 Battery Packs; 
2. Maximum continuous working current 7A, same interface for charging/discharging; 
3. Overcharge, overdischarge, short circuit, overcurrent, temperature protection, etc.;
4. Ti BQ20Z95+BQ24618 is adopted.

Test   item (Test at normal temperature 25±2ºC and relative humidity≤90%)			Criterion
			Parameter	Delay time	Release condition
Over charge Protection	Single cell	1st level safty	4.3±0.025V	2.0s±0.5s	4.1±0.05V
		2nd level safty	4.4±0.025V	1.5s±0.5s	Permanent fail
	Pack	1st level safty	4.375±0.05V/Cell	2.0s±0.5s	4.0±0.1V/Cell
		2nd level safty	4.1±0.05V/Cell	0	Permanent fail
Over discharge protection	Single cell		2.5±0.05V	2.0s±0.5s	3.0±0.1V
	Pack		2.75±0.05V/Cell	2.0s±0.5s	3±0.05V/Cell
Over current protection	1st level safty		6500mA	2S±0.5s	200mA
	2nd level safty		8000mA	2S±0.5s	200mA
	SOC protection		10000mA	0	Permanent fail
Over temperature protection	Charge	1st level safty	55±5ºC	2.0s±0.5s	50±5ºC
		2nd level safty	65±5ºC	0	Permanent fail
	Discharge	1st level safty	60±5ºC	2.0s±0.5s	55±5ºC
		2nd level safty	75±5ºC	0	Permanent fail
Short circuit protection			20A	488±100uS	20mA
Electrical characteristics
Item			Specification		Remark
Charging Voltage			4.2V *N		4.2V/1Cell
Charging Method			CC/CV		Constant-current and -Voltage with Limited current
Supply voltage range (B+,B-)			-0.3V to 34V
Impedance			≤100mΩ		B- to P- and B+ to P+
Current consumption	Firmware running		<600uA
	Sleep Mode		<200uA
Temperature	Operating Temperature		-40~+85ºC
	Storage Temperature		-40~+125ºC
Dimension			L35*W30*T7mm