User Manual Part 2

Acer M900DF Smartphone User Guide106
may take a few minutes before the charging indicator appears
on the display or before any calls can be made.
Use the battery only for its intended purpose. Never use any
charger or battery that is damaged.
Do not short-circuit the battery. Accidental short-circuiting can
occur when a metallic object such as a coin, clip, or pen causes
direct connection of the positive (+) and negative (-) terminals
of the battery. (These look like metal strips on the battery.)
This might happen, for example, when you carry a spare bat-
tery in your pocket or purse. Short-circuiting the terminals may
damage the battery or the connecting object.
Leaving the battery in hot or cold places, such as in a closed car
in summer or winter conditions, will reduce the capacity and
lifetime of the battery. Always try to keep the battery between
15 °C and 25 °C (59 °F and 77 °F). A device with a hot or cold
battery may not work temporarily, even when the battery is
fully charged. Battery performance is particularly limited in
temperatures well below freezing.
Do not dispose of batteries in a fire as they may explode. Bat-
teries may also explode if damaged. Dispose of batteries
according to local regulations. Please recycle when possible.
Do not dispose as household waste.
Replacing the battery pack
Your Acer M900DF Smartphone uses lithium batteries. Replace
the battery with the same type as that which came bundled
with your product. Use of another battery may present a risk
of fire or explosion.
Warning! Batteries may explode if not handled properly. Do not
disassemble or dispose of them in fire. Keep them away from chil-
dren. Follow local regulations when disposing of used batteries.