P1634U1 (RCR123A 860mAh)
CR123A / 16340 Li-ion rechargeable battery
Nominal capacity: 860 mAh 3.0V
Standard continuous charging current: 350 mA ( USB)
Maximum continuous discharge current: 1.5 A
Protection circuit (against overload, over discharge, over current and short circuit).
USB charging: 5V
More than 300 charge-discharge cycles
Use only high-quality USB or chargers specially designed for lithium-ion batteries.
A Li-ion battery should NEVER be discharged below 2.5V.
When buying two units, there will be a plastic bag and a USB cable.
P.S. This is a special product. a DC/DC converter installed inside the battery. The output has 3 Volts. This corresponds to a non-rechargeable battery.