The Hawk-Woods DV-F970 Lithium-Ion DV battery works as a direct replacement for Sony's NPF battery so it can be used on Sound Devices 633 audio recorders. Bear in mind though that the 633 can't charge the batteries so you'll need a charger compatible with the Sony NPF or L-series such as the Hawk-Woods DV-MC2
7.2V 6.6Ah 48W
Travel documentation for Hawk-Woods Batteries
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