The Sennheiser BA 10 is a rechargeable lithium-ion battery pack designed as a direct replacement for two AA batteries in handheld wireless transmitters.
Features
Battery type: Li-ion, 3.6-3.7V output, 2200mAh capacity for extended runtime (up to 12+ hours on D1/AVX systems).
Dimensions/weight: Compact proprietary size (approx. 5.8 x 2.2 x 1.1 inches packaged, 0.2 lb).
Charging: Via CHG 2 charger or USB for field convenience.
