Use appropriate battery chargers for your AAA rechargeable batteries.
AAA rechargeable batteries typically cost more than regular, one-time usage ones. But the initial expenditure is worth it as they can be used multiple times in the long run. Because of this, they are also more reliable than standard one-time usage ones. Common rechargeable battery types include the Nickel Metal Hydride type (Ni-MH) and the Nickel Cadmium type (Ni-Cd or Ni-Cad.) You can pick either of the two, depending on factors such as required voltage capacity, usage and cycle life.
Instructions
1. Check the device to identify battery size. AAA rechargeable batteries are smaller than AA ones. With that said, identify the required voltage capacity based on application. The most common ratings are 1.2V and 1.5V. However, 9V rechargeable battery is also available.
2. Check capacity to select the proper ones among brands. Capacity is measured in mAh and is indicated on the battery. A higher rating indicates that charge will be retained longer. AAA rechargeable batteries with low to medium capacity are sufficient for gadgets that do not draw too much power, such as cordless phones and simple clocks. High capacity ones are needed for gizmos that draw more power such as digital cameras, for example.
3. Identify your charger type. Buy AAA rechargeable batteries that are compatible with the charger you have. Some chargers can be used with the Ni-Cd type alone while others are meant for Ni-MH. AA battery chargers are not meant for AAA rechargeable batteries. A mismatch could damage the charger as well as the battery.
4. Read the fine print on the battery kit to know charge/discharge cycle. This rating indicates the number of times the battery can be charged and discharged. AAA rechargeable batteries with larger charge/discharge cycle rating will generally last longer.
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