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Protection circuis Module ( PCB ) for 3.7V Li-Polymer Battery (3.5A limit)

PCB 3.6V

Protection circuis Module ( PCB ) Round for 3.7V Li-Polymer Battery (3.5A limit)


Features and Benefits

  • Protection Circuit Board for 3.7V Li-ion and Li-polymer battery pack
  • Designed for 3.7V Li-ion or Li-Polymer battery
  • Prevent 3.7V Li-ion or Li-polymer battery from over-charging, over-discharging and from discharging current
  • Continuous working current is 3.5A, Max working current is 5A. Topt=25'C
  • Dimension: R8.65*0.5mm
  • Compatible with both Li-ion and Li-Polymer cells

Specification

Over-charge Protection Overcharge Protection voltage 4.3250 (0.05V)
Overcharge Protection Relieve Voltage 4.125 (0.1V)
Delay time for over-charge Protection 960-1400ms
Over-Discharge Protection Overdischarge Protection Voltage 2.5 (0.1V)
Overdischarge Protection Relieve Voltage 2.9 (0.1V)
Rated Discharge Current <=4A
Discharge Current Protection 6-8A
Overdischarge Delay Time 115~173ms
Charge Protection Rated Charge Current <= 3.5A
Over-Current Protection Condition to release over current protection Cut off load
Peak current protection in split second 6.9A
Overcurrent Delay time 7.2 ~ 11ms Typ. : 10ms
Short Protection Short Circuit Protection
Condition to Release short Circuit Protection Cut off load
Interior Resistance Impedance <60mohm @ AC 1KHZ
Current Consumption

Power Consumption a. Operation mode

b. Sleep mode

Typ: 12uA Max 20uA

Max 6uA

Electrical Characteristics at RT=25

Connection Port illumination

1. B+: Connec to cell's anode

2. B-: Connect to cell's cathode

3. P+: connect to the cell's output or charger's anode

4. P-: connect to the cell's output or charger's cathode

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-discahrging.
Price: $1.95
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