NEC PA-MR05LN Instruction Manual page 6

In these cases
●Do not dispose of old batteries with ordinary household
waste.
Ignition or environmental damage may result.
Cover the battery terminals with a non-conductive tape
and dispose of them in accordance with local waste
disposal regulations.
●Do not use or charge a wet battery pack.
Ignition, explosion, overheating or leakage of the battery
pack may result.
●If the liquid inside the battery pack leaks out, keep the
liquid away from your skin such as face or hands.
Otherwise, blindness or injury to your skin may result.
If the liquid gets into your eyes or mouth, or attaches to
your skin or clothing, flush with clean water immediately.
If the liquid gets into your eyes or mouth, immediately
flush with water and then consult a doctor.
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