Power-Sonic SAFETY DATA SHEET Secondary Sealed Nickel-Metal Hydride Rechargeable Batteries - Manual (Page 5)

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Section 9 – Precautions for Use, Handling and Storage
Storage
Store in a cool place, but prevent condensation on cell or battery terminals. Elevated temperatures may result in reduced
battery life. Storage temperatures should be within the range of 40°F (5°C) to 77°F (25°C) in a 65 +/- relative humidity.
Handling
Accidental short circuit will result in high temperature elevation to the battery as well as shorten the battery life. Avoid
prolonged short circuit as the heat generated can burn the attendant skin and even rupture the battery cell case. Batteries
packaged in bulk containers should not be shaken. Metal covered tables or belts used for the assembly of batteries into
devices can result in short circuits; apply insulating materials to assembly work surfaces.
If soldering or welding to the case of the battery is required please consult our Technical Department who will advise of the
precautions required.
Charging
NiMH batteries are designed for recharging. A loss of voltage and capacity due to self-discharge in prolonged storage is
unavoidable. Charge batteries before use. Always follow the specified charge rate since higher rates can cause a rise in
internal gas pressure which may result in damaging heat generation or cell rupture and/or venting.
Labeling
If normal label warnings are not visible, it is important to provide a device label stating:
CAUTION: Do not dispose of in fire. Do not mix with other battery types. Do not charge above the specified rate. Do not
connect improperly or short circuit as this may result in overheating, explosion or leakage of cell contents.
Section 10 – Physical Properties
Appearance:
Physical shape and color as supplied.
Temperature Range:
Continuous 40°F (5°C) to 77°F (25°C). Occasional -40°F (-40°C)
Specific Energy:
65 to 75 Wh/Kg. Note Wh = Nominal voltage x rated Ah as defined in IEC standard. Kg. = Average battery rate in kilos.
Specific Instant Power:
About 1500 W/Kg. Note W = 0.5x nominal voltage x 1p. With 1 Ip = current in Amperes delivered by a fully charged battery
for half the nominal voltage at one second. Kg. = Average battery rate in kilos.
Mechanical Resistance
As defined in relevant IEC standard.
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