i bought a sony HDR-XR350 camcorder. with tat i bought a battery "NP-FV70". it is a 7 hrs recording battery.
my battery is fully charged. when i power on my camcorder it shows only 258min that is 4.3 hrs battery power left.
This
http://www.buy.com/prod/sony-infolithium-np-fv70-photo-battery-2060-mah-lithium-ion-li-ion-8-4/q/loc/111/213906433.html
says the NP-FV70 is a 3.5 hour runtime battery.
How long the battery life is depends on how you use the camcorder. If you turn it on, press record and let it run, that is a very different life than if you press record and stop many times… or if you are playing back rather than recording. There is not single "this battery lasts this long" number. It even says so in the camcorder’s manual – and the number in there is based on "best" practices and longest life which most normal people don’t do.
As well, temprature can impact battery life… Where did you see that the NP-FV70 "is a 7 hour battery"? Under what conditions and use?
This
http://www.buy.com/prod/sony-infolithium-np-fv70-photo-battery-2060-mah-lithium-ion-li-ion-8-4/q/loc/111/213906433.html
says the NP-FV70 is a 3.5 hour runtime battery.
How long the battery life is depends on how you use the camcorder. If you turn it on, press record and let it run, that is a very different life than if you press record and stop many times… or if you are playing back rather than recording. There is not single "this battery lasts this long" number. It even says so in the camcorder’s manual – and the number in there is based on "best" practices and longest life which most normal people don’t do.
As well, temprature can impact battery life… Where did you see that the NP-FV70 "is a 7 hour battery"? Under what conditions and use?
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