Olympus V-90 - Manual (Page 26)

BATTERY PRECAUTIONS
Always use the battery correctly. Fluid leakage, heat
generation or explosion may occur if the battery is used
incorrectly. When the battery is replaced, be sure the +
- polarity position is correct.
Some batteries are the same size but have different
voltages.
Note the difference between dry type and rechargeable
batteries. Read the explanation for the batteries before
using them.
When there is fluid leakage, wipe off the fluid from the
battery compartment and then insert the battery.
Remove the battery when the unit is not used for more
than one month.
If a battery is short-circuited, disassembled, charged or
thrown into a fire, damage or ignition may occur.
Poor contact may occur if the + - polarity symbols are
obscured with oil or sweat. Wipe off the battery with a
clean cloth before use.
Be sure to bring extra batteries if the unit will be used for
long periods of time, i.e. lengthy speeches or lectures.
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