How to distinguish rechargeable batteries?
Look at the battery on the packaging, rechargeable batteries are generally: Recharge, cycle, NI-MH, NI-CD, Nickel-Metal, 1.2V, capacity, such as: 1500mAh and so on. Disposable batteries generally standard: 1.5V and so on
Rechargeable battery positive pole head, carefully look there will be 2 to 4 holes, but some are blocked to see.
Rechargeable batteries in the upper part of the battery case, look carefully, there is a circle of dent; disposable batteries generally not, and some are also close to the lower part of the battery shell.
