TRUSTFIRE 9V-Block 6LR61 6F22 550 mAh GBS beveilig Battery

The Li-Polymer 9V block, which can be charged via micro-USB and has its own charging electronics, is equipped with protection / PCB, short circuit, overcharging and deep discharge protection.
You can use the Li-Po battery in almost any device just like other batteries and without the usual self-discharge. All you need to charge is a USB cable and a 5V USB 1A - 3A power supply or a 5V USB computer connection. (not included)

Trustfire 9V block Li-polymer battery ReadyToUse PCB protected

Lithium-polymer technology impresses with its higher energy density, higher capacities and low self-discharge.

type 9V block 6LR61 6F22 rated voltage 7.4V charging voltage 8.4V ± 0.3V discharge voltage 5.4V Capacity Typ./Min. 550mAh / 490mAH Charging current / charge time at 110 mA 0.32 mA - 110 mA / approx. 1.5 hours protection circuit integrated Chemical system Lithium polymer Dimensions (L x W x H) in mm 47.5 ± 0.5 x 26 ± 0.2 x 17 ± 0.3 weight 28 g ± 1 g rechargeable yes contents 1 st datasheet safety:

Lithium polymer batteries are mechanically, electrically and thermally sensitive. Damage, overcharging, deep discharge , high currents, operation at too high (more than 60 ° C) or too low temperatures (less than 0 ° C) and long storage in the discharged state damage or destroy the cell in most cases.
A special charger is required to charge lithium-ion batteries, which charge the batteries through a special charging process. (CCCV = constant current, constant voltage.) Or via the built-in micro USB input 5V 1A - 3A