NTT docomo Optimus LTE L-01D Instruction Manual page 26

Notes about the Battery Pack
„ The battery pack is a consumable accessory.
Battery life varies depending on usage conditions,
etc., but it is time to change battery packs when the
usage time has become extremely short even though
the battery pack has been fully recharged. Change
to a specified new battery pack.
„ Charge the battery pack in an environment with the
proper ambient temperature (5˚C to 35˚C).
„ Battery life may differ depending on the use
environment or degradation level of the battery pack.
„ Depending on the usage condition, the battery pack
may inflate slightly when the battery life is almost
over. Note that it is not a problem.
„ Be careful especially about the following points when
storing the battery pack.
• Keeping under fully charged state (right after the
charging ends)
• Keeping under not charged state (consumed too
much to turn on the terminal)
The performance and life of the battery pack may
deteriorate.
It is recommended that you store the battery pack
with around 40% battery level.
24
Contents / Precautions
Notes about the Adapter
„ Charge the battery pack in an environment with the
proper ambient temperature (5˚C to 35˚C).
„ Do not charge in the following places.
• Places that are very humid, dusty or exposed to
strong vibrations.
• Near ordinary phone or TV/radio.
„ It is normal that the adapter becomes warm while
being charged. You can continue using without
problems.
„ Use the DC adapter only when the car engine is
running.
The car battery may be exhausted.
„ When using an outlet with a mechanism preventing
unplugging, follow the handling instructions of the
outlet.
„ Do not give a strong impact to the adapter. Also, do
not deform the charging terminal or terminal guide.
Malfunction may result.