Information, tips and myths - No.35 - Using rechargeable batteries
Note that you must read the instructions for a device before using rechargeable batteries, because rechargeable batteries do not have the same voltage as ordinary batteries. An ordinary battery is 1.5 volts, whereas rechargeable batteries are 1.2 volts. So, if you have a device that needs four ordinary batteries, that will give six volts, whereas if you use rechargeable batteries, that will total only 4.8 volts.
