Swap the Sound Devices A20-BatteryDoubler with the standard battery door on your A20-Mini wireless transmitter and double your transmitter's run time—up to 9 hours.

Features at a Glance

• Double the battery run time of your A20-Mini.
• Equipped with two NP-BX1 batteries—expect up to 9 hours battery run time.
• Easy and quick to fit—swap the BatteryDoubler back and forth with the standard A20-Mini battery door in seconds.
• Supercompact—with the BatteryDoubler fitted, the A20-Mini’s height and width are unchanged. Only its depth is increased.
• Dual NP-BX1 charging—both batteries are charged simultaneously when the A20-Mini is connected to a USB-C power source.
• Water-resistant—with the BatteryDoubler’s door closed, the A20-Mini is resistant to water and sweat.
• Compatible with the PowerStation-8M charging, file transfer, and timecode station—charge up to four A20-Minis when fitted with the BatteryDoubler.