I have one that uses 4 AAA batteries and although it does charge the 770's battery, it doesn't "top it off" completely. It's good for emergencies, but not really for prolonged use.
Nope,
The Nokia doesn't use the USB port for charging.
However, Radio Shack stocks the connector for the Nokia which is used in its line of wall and car chargers. I bought the car charger version. You could easily modify the connecter to work with a battery USB power port which is readily available which uses four AA batteries, and has a power control circuit which allows it to charge the Nokia.
Thanko Japan known for its out of the box USB gadgets has announced the NB-Mate which is five in one device. To start with it is obviously USB powered so once you connect it to the PC it functions as a speaker. It has two speakers delivering an output of 1.5W×2ch so you get decent stereo sound. It has a stereo mini input so you can connect your MP3 player, Discman etc for audio playback the speakers can be powered via USB or AC adapter. The device has four USB 2.0 ports so it doubles as a USB Hub too. You can connect the iPod via USB for charging and data transfer. The NB-Mate can be powered by 4 AA batteries too and last but not the least when connected via USB or AC adapter rechargable AA batteries are charged automatically.
Because the 770 uses the same battery charger as all the other new generation Nokia phones (those from 2005/2006 onwards, such as the N-series, that have the new, smaller jack), you can use anything that's intended for a generic Nokia.
This should give you plenty of options for emergency battery chargers, USB chargers, car kits, and battery packs.
Because the 770 uses the same battery charger as all the other new generation Nokia phones (those from 2005/2006 onwards, such as the N-series, that have the new, smaller jack), you can use anything that's intended for a generic Nokia.
This should give you plenty of options for emergency battery chargers, USB chargers, car kits, and battery packs.
I've discovered that the one I have (a generic one that uses 4 AAA batteries and is advertised as fit for Nokia phones) doesn't actually work. When plugged in, it does start a charging cycle, but after about a minute it appears to stop: at least the battery symbol on the Nokia no longer cycles.
Does anyone know if there are instances of chargers that will actually charge without the Nokia's operating system ackowledging it?
