When the battery is not used for a long time, the storage voltage
should be kept at about 3.85v （15.4v for one battery）for a single cell,
and it should be placed in a cool and dry place
4.4 Warning&security
Stay away from children. If swallowed, seek medical attention
immediately.
Do not use or store the battery near the heat source, microwave oven or
open fire. Do not damage the battery violently..
Only use battery chargers that meet the specifications when charging.
Do not use or store the battery in extremely hot environment, such as in
a car in direct sunlight or hot weather. Overheating will affect the
performance of the battery and shorten the service life of the battery.
Overheated batteries can also catch fire.
If the battery has peculiar smell, heating, deformation, discoloration or
other abnormal phenomena, please stop using the battery. Recycle and
replace the battery.
Discarding batteries at will may cause a fire. Before disposal, discharge
the battery completely and handle the battery output connector with
insulating tape. Refer to local regulations before handling or recycling
batteries.
