May 31, 2007 - 1 minute read - battery charger ericsson k750 power recharge sony sonyericsson usb windows Sony Ericsson K750 USB charging If you’re frustated trying to charge your K750 from USB with no luck. Try to install the drivers first, it actually makes a difference. The K750 wont recharge the battery if the drivers are not installed. At least that worked for me in Windows 2000.