Keeppower 18650 3500mAh P1835U (White-blue) 2020
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Official specifications:
- Minimum Capacity: 3350mAh
- Nominal Capacity: 3500mAh
- Nominal Voltage: 3.7V
- Discharge End Voltage: 2.5V
- Standard Charging Current: 1.0A
- Max. Continuous Discharging Current: 5A
- Built in micro-usb charge port
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A 3500mAh protected 18650 with build-in USB-charger.
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A pack contains two batteries and a dual usb charge cable.
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The two cells tracks nicely and can handle more than 7A before getting too hot or protection will kick in.
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It looks like the USB charger reduces current probably due to temperature at the start of charging.
Conclusion
A good protected battery with good capacity, the USB charging can be useful on the go or if you only have a few 18650 batteries.
Notes and links
The batteries was supplied by Keeppower for review.
How is the test done and how to read the charts
How is a protected LiIon battery constructed
More about button top and flat top batteries
Graphical comparison to 18650 and other batteries
Table with all tested LiIon batteries