Sennheiser B 60

The Sennheiser BA 60 is a rechargeable lithium-ion battery pack designed for SKM 6000 and SKM 9000 handheld wireless transmitters.

Capacity: 1600 mAh at 3.7V, providing up to 5.5 hours continuous operation.
Charging: Via L 6000 charger with LM 6060 module (2.5 hours full charge) or L 60 as alternative.
Dimensions/Weight: Compact cassette-style (fits transmitter base), 109g total weight.
Features: Onboard electronics monitor charge state and predict remaining runtime.