Duracell Ni-MH manual Care and Handling

Ni-MH Rechargeable Batteries

9ProperUseandHandling

Nickel-metal hydride batteries can give years of safe and reliable service if they are used in accordance with recommended procedures and are not abused. The batteries can be used in any operating position. Other than charging, the only maintenance that should be required is to keep them clean and dry both during use and storage.

As previously discussed, nickel-metal hydride batteries, as with all battery systems, should not be exposed to extreme temperatures for any long period of time. They can be stored for many months in a charged or discharged state without any detrimental effects. Storage and operation at normal room temperatures is preferred, but wider temperatures can be safely tolerated as discussed in detail in this bulletin.

DURACELL nickel-metal hydride batteries are shipped in a partially charged state. Therefore, caution should be exercised to avoid short-circuiting the battery during handling.

After storage or periods during which the battery has not been used, the battery should be charged, using any of the methods discussed in this bulletin, before being placed in service. Extended overcharging or overheating of the battery should always be avoided.

The care and handling procedures outlined in the following section should be carefully followed.

9.1 Care and Handling

Disassembly

The battery should not be disassembled, opened or shredded under any conditions — high short circuit currents and fire could result. Nickel- metal hydride cells contain an alkaline elec- trolyte which can cause injury. In the event that the electrolyte comes into contact with skin or eyes, immediately flush with fresh water and seek medical advice.

Handling

DURACELL nickel-metal hydride batteries are designed to withstand normal handling. They should not be dropped or subjected to strong mechanical shock.

High Temperatures/Fire

Never subject the battery to heat or dispose of it in a fire — the battery can explode, leak or burn if exposed to fire or very high temperatures. For optimum life, batteries should be shielded from or placed away from heat sources. See Section

7.2which describes recommended temperatures for use, operation and storage of nickel-metal hydride batteries.

Vented Battery Compartments

It is possible that cells may vent if the battery is overcharged or otherwise abused. Nickel-metal hydride cells release hydrogen gas during venting which could form potentially explosive mixtures with air. Caution should be exercised to prevent the gas from collecting in the battery or equip- ment. Exposure to a source of ignition and air- tight device compartments should be avoided.

Severe Use Applications

Short-term use of nickel-metal hydride batteries outside of specified ranges may be possible. Please consult Duracell if such a requirement exists.

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