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Safety Considerations
Duracell’s nickel-metal hydride batteries are designed to ensure maximum safety. Each cell includes a
resealable pressure relief mechanism (safety vent) to prevent excessive build-up of pressure in the cell in the event
it is overcharged excessively, exposed to extreme high temperatures, or otherwise abused. Duracell’s nickel-metal
hydride batteries contain protective devices, as discussed in Section 6.4, to prevent excessive heating during fast
charging, high rate discharging beyond design limits, or abusive use.
DURACELL nickel-metal hydride batteries have been tested by the Underwriters Laboratories in accordance
with UL Standard 2054 “Outline of Investigation for Household and Commercial Batteries.” Duracell successfully
met all of the test criteria. The tests required under this Standard and the results of the tests on DURACELL cells
and batteries are summarized in Table 8.0.1. These tests cover operational and abusive conditions to which
batteries may be exposed during their use.
DURACELL nickel-metal hydride cells and batteries that are listed by Underwriters Laboratories under
UL Standard 2054 are identified in File No. MH17905. Some DURACELL nickel-metal hydride batteries used in
computers are listed under UL Standard 1950 “Safety of Information Technology Equipment, including Electrical
Business Equipment,” and are identified in File No. E158164.
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Ni-MH Rechargeable Batteries