Why is my battery charge going down when it's plugged in?
I've just noticed that my iphone's battery charge is actually going down even though it's plugged in to my in-car charger. It only does this whilst I have the maps app running. As soon as I close it down it begins to charge again.
I use this app fairly regularly and it always used to take charge whilst the screen stayed on. Is the GPS somehow using more power or is it just my crap battery?
maps app uses triangulation off cellphone masts... basically it's a huge battery drain as it's sending/receivi
It shouldn't noticeably drain your battery when it's plugged in to mains/charger though. It may be that your in-car charger isn't delivering enough power to compensate-I'm not sure what the output of in-car chargers are.. I'd start troubleshooting with the charger/USB connector; look for damaged pins/wire/dirt.
WIFI or 3gs connections are heavy drainers of the battery. You have not mentioned what firmware/operat