This BA 30 rechargeable battery powers the Sennheiser AVX bodypack transmitter found in the Sennheiser AVX Digital Wireless Lavalier Pro Set. This lithium-ion battery will power the bodypack for 10 to 15 hours dependant upon the working distance between the transmitter and receiver on your project. We don’t include a charger with this rental, but the battery can be charged via its USB 2.0 micro port.
If you need a spare battery for the AVX EKP wireless receiver, you’ll want a Sennheiser BA 20 battery.
If you need a spare battery for the AVX-835 handheld microphone transmitter, you’ll want a Sennheiser BA 10 battery.