Protection Circuit Module (PCB) for 3.7V Li-Ion Battery (3A limit) with I2C (#1263)

Protection Circuit Board Specifications  For 3.6V/3.7V Li-ion/Li-po Battery Pack
Model: PCB-S1A3-I2C  IC (BQ27541), I2C
No.	Test   item		Criterion
1	Voltage	Charging voltage	DC: 4.2V CC/CV
		Balance voltage for single cell	N/A
2	Current	Normal operating-mode current: Gas Gauge in NORMAL mode,ILOAD > Sleep Current	150μA
		SLEEP operating-mode current: Gas Gauge in SLEEP mode,ILOAD < Sleep Current	80μA
		FULL SLEEP operating-mode current: Gas Gauge in FULL SLEEP mode,ILOAD < Sleep Current	250μA
		Maximal continuous Charging current	3A
		Maximal continuous discharging current	3A
3	Over charge Protection (single cell)	Over charge detection voltage	4.25±0.025V
		Over charge detection delay time	0.5S-2.0S
		Over charge release voltage	4.05±0.05V
4	Over discharge protection (single cell)	Over discharge detection voltage	2.50±0.07V
		Over discharge detection delay time	10-30mS
		Over discharge release voltage	3.0±0.1V
5	Over current protection	Over current detection voltage	0.2V±0.015V
		Over current detection current	5±1A
		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-）	≤50mΩ
8	Temperature	Operating Temperature Range	-40～+85℃
		Storage Temperature Range	-40～+125℃
9	Weight
10	Dimenstion	LxWxT	56 x 5 x 3 mm
11	Specification in pdf file	Download the specification

Notes: Customer can not program the board, we will preset the board according to your battery's specification.

What we need to know from you?
1. Cell's manufacturer and module number
2. How many in series and parallel
3. What is the capacity of battery pack
4. Maximum continuous discharge current
5. Maximum surge discharge current
6. SMBus or RS485 or RS232

 
For other PCM/PCB, please check our PCM/PCB/BMS/CMB/UPS category

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. 
• 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.