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SONY QM Series DV Camcorder Battery Pack
◆ Li-ion battery pack of 7.2V nominal
◆ Comparable to SONY M series DV
◆ Display remaining power info on
    camera viewfinder
◆ 32Wh / 4.5Ah capacity
◆ Multiple circuit protections
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SONY M series Replacement battery

Similar battery as SONY QM-91D
Display remaining power info

S-8M91 is the replacement battery for SONY QM-91D, compatible with SONY HVR-A1E and DSR-PDX10. S-8M91 can exchange digital info with the cameras, and display remaining power info on the camera viewfinder.



32Wh / 4.5Ah Capacity

With 7.2V nominal voltage, the S-8M91 has 32Wh / 4.5Ah capacity,
and can run approx 5.5 hours on SONY HVR-A1 camcorder when
LCD monitor is on.

Easy Charging

The S-8M91 can be charged on SWIT Dual channel charger S-3602M. It takes about 3 hours to charge from empty to 100%.

Adopted high quality Lithium cells

Over more than 15 years, SWIT has been leading brand of broadcast camera batteries. The first reason is the high quality Lithium cells we adopted.
The high quality cells featured long life, durable, safety, and most of all, the cells has very little difference to each other, which ensures the high performance of the whole battery pack.
Moreover, the cells we’re using, have a smooth discharging curve by voltage, so that you can judge the remaining running time accordingly. Also when in storage, the self-discharging rates are very little, that extends the battery life effectively.

    Multiple Safety Protection Design

The battery has an MCU to measure and record the real time data, and will cut off power when over-voltage, under-voltage,
over-current, high-temperature of low-temperature is detected.
Meanwhile, the battery housing adopts high-impact ABS material, with waist design and non-slip tread for secure handling.
       Cell balance adjustment

After the batteries are used for a period of time, the cells voltage might get difference, and our specially designed circuit can
optimize the imbalanced cells, to prolong the battery life.
Nominal Voltage7.2V
Max output power30W,4A
Applicable cameraSONY HVR-A1E
Net weightApprox 220g



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Please contact SWIT at:


Fax: +86-25-85805796
Address: 10 HengTong Road, Xin’gang, Nanjing
Economic and Technological Development Zone
Nanjing, 210038, P. R. China.




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