Panasonic FZ-L1 Series Operating Instructions Manual page 5

Do not place the battery in microwave ovens or
pressurized containers.
Sudden application of heat or pressure may damage the
battery, resulting in electrolyte leakage, overheating,
smoke, rupture, or a fire.
If the battery smells or leaks electrolyte, keep the
battery away from fire.
Failure to do so may result in electrolyte leakage,
overheating, smoke, rupture, or a fire.
This product and charger
WARNING
When using the product for extended periods, do
not expose your skin to this product for a prolonged
period.
Generated heat can cause low-temperature burns.
Do not disassemble, repair, or modify the product.
Doing so may cause a short circuit or overheating, which
may result in a fire or electric shock.
Do not insert foreign objects into the product.
Doing so may cause a short circuit or overheating, which
may result in a fire or electric shock.
Do not allow conductive materials such as metal
objects to touch the expansion bus connector.
This may cause a short circuit and overheating, which
may result in battery electrolyte leakage, overheating,
smoke, rupture, or a fire.
Operating Instructions - Read Me First (English) 5