Battery rejuvination on a veho kuzo 001 hd camcorder
I have a number of brand new veho kuzo cameras that are now required to work, which have failed to charge on the basis that the batteries are 'too flat' ie, they have been flattened over a period of over a year and register 0 volts on a multimeter.
I have gone to our science department and borrowed a power supply. I removed the battery from the camera and attached the power leads to the + and - terminals for about a minute supplying 9v, after which the battery is registering just over 3v (battery is rated at 3.7v) after which puting the camera on it's charger results in the camera charging successfully.
I used the bench supply, but you could just as easilly use another adapter rated at a similar voltage, or even a 9v battery.
I've used this technique to rescue a number of other batteries including a model helicopter and several mobile phones... useful thing to remember.