BQ25302 Lithium Battery Charger Module (Single Cell)

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₹350.46 inc. GST
₹297.00 ex. GST
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The BC170903-S is a compact (25.4 x 17.5 mm) module with battery overcharge protection, perfect for Li-Ion and Li-polymer batteries that do not have their own protection circuit. The module has an inbuilt input EMI filter and thermal protection. The module is designed to charge rechargeable Li-Ion and Li-polymer batteries using the constant current of 1.2 A and constant voltage of 4.1/4.2 V charging method.

Key Features
  • Compact Size: 25.4 x 17.5 mm
  • Input voltage: 4.5 – 6V DC 
  • Output voltage: 4.1/4.2V 
  • Charging Current: ~1.2A
  • Battery Leakage current: ~200nA @ 4.5V battery voltage
  • Inbuilt Input EMI filter
  • Battery Protection: Over charge, Over voltage, short, open
  • Inbuilt thermal protection
  • Operating temperature range: -40 to 65 Deg C Ambient

Module Pinout

  • VIN Pin: Input voltage
  • GND Pin: Power ground
  • BAT Pin: Battery +ve
  • TS Pin: Reserved for future
  • ICN Pin: This is only used if you want to change the charging current. Contact Serobit for details
  • Enable Pin: can be used to control the output from an external circuit. It is internally pulled down by a 100k resistor. High on this pin will shut down the charger

Board Dimensions


Lithium Battery Charger Module Video

Extra Information

Serobit Digtronix
Compact Size:
25.4 x 17.5 mm
Input Voltage:
4.5 – 6V DC
Output Voltage:
Charging Current:
Battery Leakage Current:
~200nA @ 4.5V battery voltage
Battery Protection:
Over charge, Over voltage, short, open
Operating Temperature Range:
-40 to 65 Deg C Ambient

Warranty Information

All the products supplied by Evelta are genuine and original. We offer 14 days replacement warranty in case of manufacturing defects. For more details, please visit our cancellation and returns page.