Please use our
camcorder battery finder to check which battery you need.
NP-QM91 is the largest size battery in the Info-"M" series NP-FM50 NP-QM71
FM50 is rated about 2-hours, QM71 around 4 hours, and QM91
around 6-8 hours. FM50 is also the lightest when QM91 is the heaviest.
QM91 is not compatibe with cameras. It is much thicker and specifically designed
QM71 is highly recommended for camcorder use. First of all,
it does not extend out of camcorder as much as QM91. Second it still looks
aestetically pleasing. Third it will allow you to tape longer than 3 hours which
is what most on-stage events run for.
What is the difference between FM70 vs QM71 and FM90 vs QM91? At first,
FM70 and FM90 batteries were developed. When they appeared, there were
no super-fast 2-hour chargers for these batteries. A regular FM charger would
take 4-6 hours to charge them because of higher capacities and the same
charge current as used for FM50. Eventually, a need for super-fast 2-hour
charging appeared, and sony released the "QM" series that had circuitry
that could handle faster charging. Other than that, both FM and QM work
This battery is compatible with the many camcorders such as
Sony DCR-DVD101, DCR-DVD201,
DCR-TRV950, HDR-HC1, CCD-TRV138, DCR-DVD100, MVC-CD500,
DCR-TRV260, DCR-DVD301, DCR-TRV460, DCR-TRV19, DCR-TRV280,
CCD-TRV128, CCD-TRV318, DCR-TRV250, DCR-PC110, CCD-TRV308,
and many others. If your camcorder is not listed - please
check our camcorder battery finder to see which battery you need.
These batteries can be charged by any chargers intended for FM50 QM71 QM91
or FM70 or FM90 batteries. Such as the chargers that may come with the camera/
camcorder. They can also be charged on camcorder.