Duracell Ni-MH Battery Charger User Manual


 
Ni-MH Rechargeable Batteries
21
9
9
Proper Use and Handling
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
7.2 which 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.