Features and Benefits

• Protection Circuit Board for 14.8V 4-cell Li-ion and Li-polymer battery packs
• Designed for 14.8V Li-ion or Li-Polymer batteries
• Prevents 14.8V Li-ion or Li-polymer batteries from over-charging, over-discharging and from current discharge more than 5.7A
• Internally trimmed charge and discharge voltage limits
• Discharge current limit detection
• Low current standby mode when cells are discharged

Port #	Connection
P-	Output (-) Charger (-)
P+	Output (+) Charger (+)
B+	Battery 1 (+)
B1	Battery 2 (+) and Battery 1 (-)
B2	Battery 3 (+) and Battery 2 (-)
B3	Battery 4 (+) and Battery 3 (-)
B-	Battery 4 (-)

Attribute	Criteria
Over Charge Detection Voltage	4.35 ± 0.025V
Over Charge Release Voltage	4.15 ± 0.05V
Over Discharge Detection Voltage	2.4 ± 0.08V
Over Discharge Release Voltage	3.0 ± 0.1V
Rated Operational Current	5A
Over Current Detection Current	6-9A
Over Current Release Condition	Cut Load
Over Current Detection Delay Time	8.0-16.0ms
Short Circuit Protection	Implemented
Short Circuit Release Condition	Cut Short Circuit
Interior Main Loop Conduction Resistance	VC = 4.2V: Rss ≤ 0 mΩ
Current Consumed in normal Operation	30 μA Max
Dimensions	50 x 16 x 1.1 mm

Application Notes: We do NOT provide engineering support for this item. It is up to the purchaser to determine suitability and manage the use of this product. If this product is modified (soldered onto) it cannot be returned.

Do not subject the PCB to input voltage over 20V. INput voltage over 20V will damage the PCB Please use the compatible charger for your battery pack. Special attention to your input and output voltage, current to avoid PCB damage When mixing over-charged batteries and over-discharged batteries together, PCB will be in dual state of over-charging and over-discharging. In this situation, charging and dis-charging are both disabled Internal static charge protection circuit built into the PCB. But not subject the PCB to high static charge to avoid damage. Without the written agreement from us, please don't use this PCB for application in medical instruments, emergence devices, auto and airspace vehicles or other device that might have impact on human body. Because of the very high energy density, Li-Ion Battery pack must be connected to a protection circuit module to prevent accidental battery explosion caused by over-charging or over-discharging.