Marui's Li-Po battery range may be more expensive than other batteries, but they are highly safe with built-in protection functions and temperature sensors.
This is the stick battery required for the Marui EVOLT AEG.
It is resistant to cold and has low self discharge.
The circuit inside the battery manages the two cells connected in series. It monitors the voltage applied to each cell and charges the cells that are deteriorating appropriately, preventing further deterioration when connected to an airsoft rifle.
The battery is equipped with protection functions to protect the battery and the user from problems such as overcharging, over-discharging, and short circuits. [1] Over-discharge prevention function [2] Overcharge prevention function [3] Discharge overcurrent protection function [4] Short circuit protection function [5] 0V (zero volt) charging prohibition function.
The battery is protected from external shocks by a flame-retardant PVC hard case, preventing damage to the battery that could cause smoke, explosion, or fire.
1500mAh rating for extra long lasting power.
Cell size: 130mm x 16.5mm x 16.5mm size.
Requires the use of Marui's proprietary Li-Po charger. You cannot plug this battery into a standard Li-Po charger.
Configuration: Stick.
Voltage: 7.4V
Capacity: 800mAh.

Li-Po/Li-Fe battery warning: Always charge your Li-Po/Li-Fe battery in a fireproof bag. Charge your Li-Po/Li-Fe battery on a hard, solid surface and away from other electronic devices. Only use a Li-Po/Li-Fe battery charger and never leave a battery unattended, even in another room.

LiPo/LiFe/Li-ion Batteries

Tokyo Marui 7.4V 800mAh MS Li-Po Battery (EVOLT)