The Sennheiser BA 30 Rechargeable Battery Packfrom Sennheiser BA 30 Rechargeable Battery Packis a rechargeable battery pack for the evolution wireless SK D1 or AVX Bodypack Transmitter (sold separately). It can be used to replace the two AA size batteries that power the transmitter-unit. The BA 30 uses a lithium-ion 3.7V rechargeable battery.

For SK D1 or AVX Bodypack Transmitter    Replaces Two AA Batteries    Lithium-Ion Rechargeable Battery

Related Questions and Answers

Q: 1. How many hours do you get out of the Sennheiser BA 30 Rechargeable Battery Pack?

A: 12 hours, based on my own experience.Don't know what Sennheiser says.

Q: 2. Am I right in thinking it would make more sense to just buy a 4-pack of AA eneloop pros and a charger? Plus you'd get 2250 mAh.

A: You may choose to purchase the Panasonic Eneloop Pro Rechargeable AA Ni-MH Batteries with Charger (2550mAh, Pack of Four), BH #PAKJ17KHCA4A instead of the Sennheiser battery packs and charger, which would provide the same type of power a a lower cost. The Sennhieser system provides more convenience, by not having to remove the individual AA batteries to charge them, but it is a significant investment.

Q: 3. Is this for the receiver piece?

A: Yes the Sennheiser BA 20 is made for compatibility with the Sennheiser AVX EKP Receiver.

Q: 4. Do the same battery packs fit the handheld and body pack units in the G3 100 series?

A: Yes they do: the Sennheiser BA 2015G2 is a rechargeable battery pack for the Sennheiser G2 and G3 series wireless systems (transmitter and receiver).

Q: 5. How long does it take to fully charge the battery?

A: I havent timed it but Im thinking its a couple hours.

Q: 6. works with gh5?

A: Yes works well

Q: 7. Are the NiMH cells simply rechargeable AA cells? And can they be swapped out for higher capacity rechargeable AA cells?

A: They are a proprietary battery pack from Sennheiser made for the G2 and G3 wireless systems. They are not intended for higher capacity rechargeable AA cells.

Q: 8. Can this be charged while in use. I am testing now and it appears so but wanted to confirm before my event?

A: Yes, the Sennheiser BA 20 Recharging Battery Pack for AVX EKP can be charged while in use.

Q: 9. Is there a dedicated charger for this battery? Instead of having it attached to the AVX receiver?

A: I am not finding that Sennheiser lists a compatible charger for the BA20 at this time. https://en-us.sennheiser.com/ba-20

Q: 10. Compatible with G9?

A: This battery would be compatible with the Lumix DC-G9 camera.