Lithium or LiLiFePO4 Battery Charger, Support 1-3 Series

Description

  • Support 1-3 series Lithium or LiLiFePO4 battery to charge:
    • 1x, 2x, 3x, 4.2V lithium battery (set stop voltage to 4.2V, 8.4V, 12.6V)
    • 1x, 2x, 3x, 3.6V LiLiFePO4 battery (set stop voltage to 3.6V, 7.2V, 10.6V)
  • Charge Input:
    • Wide Input Voltage: 7.5V to 28V
    • Support to be charged by solar panel, can follow for maximum MPPT point, also can set this function.
    • Also support charger input
    • Up to 5A maximum charge current
  • 3 Stage smart charge (similar to TP4056. MCP73831):
    • trickle current charge, set possible on back side.
    • constant-current charge (set by Ics), no need change for default.
    • constant-voltage charge (set by Vfb)
  • Charge status LEDs:
    • charging
    • done charging.

Resistor divider for feedback:

  • Please notice default Rvfb is 3.3K.
  • Change Vfb resistor to set this stop voltage
  • All the rest SMD resistors are included in the package.
  • Supply VCC should be +2V > Vbat
Charge Target
 Regulation Voltage Rv_fb voltage feedback resistor selection
LIFEPO4 1 Series
3.6V 28.7K
LIFEPO4 2 Series
7.2V 7.5K
LIFEPO4 3 Series
10.8V 4.02K
Lithium ion Li+ 1 Series
4.2V 19.1K
Lithium ion Li+ 2 Series
8.4V 5.76K
Lithium ion Li+ 3 Series
12.6V 3.3K

Documents:

Additional information

Weight 0.015 kg

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