1200mAh, 4.4Wh, 3.7V Lithium-Ion Rechargeable Battery 

Get over 10 hours of run-time with your A20-TX transmitters using the XL-B14500 battery! This custom-designed battery is expressly intended for use in A20-TX transmitters, while being compatible with commonly available 3.7V Li-Ion chargers. 

Product features: 

• Optimized for use with the A20-TX transmitter  

• More than 10 hours battery runtime with lav input 

• Rechargeable in the A20-TX transmitter or any charger that supports 3.7V Li-ion cells 

• Can power the A20-TX transmitter with 1, 2, or 3 batteries 

• Hot-swappable to allow replacement of each battery without interrupting transmission 

• Has built-in safety protection against excessive current draw