This is the Hahnel version of the Sony NP-FS21 rechargeable replacement camcorder battery pack.
HIGH POWER
This Hahnel replacement rechargeable Sony fit camcorder battery pack is suitable to replace the following Sony camcorder batteries:
NP-FS21, NP-FS22, NP-FS31 & NP-FS32
3.6 Volts, 2800mAh, Lithium-ion, Info-Tech System
