Current slide {CURRENT_SLIDE} of {TOTAL_SLIDES}- Best-selling in Other Electrical Equipment & Supplies
Current slide {CURRENT_SLIDE} of {TOTAL_SLIDES}- Save on Other Electrical Equipment & Supplies
Useful, low cost Li-ion charger board. Cutoff voltage is at 4.19 V - almost perfect. Can be permanently connected to rechargeable battery, as it will not drain it after charging. Regulator IC warms up while charging, so don't go above 5V from power supply end or replace a resistor (see documentation) to drop charging current to a lower value (default is 1 A).
Verified purchase: Yes | Condition: New
Just connect and go! Better than earlier versions as these have added battery protection. Fairly easy to change one resistor (R3) to get lower charging current (which I needed for the smaller 14500 cells).
Verified purchase: Yes | Condition: New
I have made a little kit (as I am still learning to solder) that uses this to charge and power a clock from an 18650 battery. It is connected to my computer and charges the battery safely until full, then when I switch off it goes into the discharge side without any drop to the clock. This unit has been constantly on (charging and discharging) for over a week without issue. I recommend it highly.
Verified purchase: Yes | Condition: New
Simple, but very good charger for Li-Ion battery. I have used this charger for solar charging battery. I'm satisfied.
Verified purchase: Yes | Condition: New
Verified purchase: Yes | Condition: New