Spirit M1 - Manual (Page 276)

258 Section 4A: Important Safety Information
ⅷ
In order to avoid damage, charge the battery only in temperatures that
range from 32° F to 113° F (0° C to 45° C).
ⅷ
Don’t use the battery charger in direct sunlight or in high humidity
areas, such as the bathroom.
ⅷ
Never dispose of the battery by incineration.
ⅷ
Keep the metal contacts on top of the battery clean.
ⅷ
Don’t attempt to disassemble or short-circuit the battery.
ⅷ
The battery may need recharging if it has not been used for a long period
of time.
ⅷ
It’s best to replace the battery when it no longer provides acceptable
performance. It can be recharged hundreds of times before it needs
replacing.
ⅷ
Don’t store the battery in high temperature areas for long periods of
time. It’s best to follow these storage rules:
Less than one month:
-
4° F to 140° F (-20° C to 60° C)
More than one month:
-
4° F to 113° F (-20° C to 45° C)
Disposal of Lithium Ion (Li-Ion) Batteries
For safe disposal options of your Li-Ion batteries, contact your nearest
Sprint authorized service center.
Special Note:
Be sure to dispose of your battery properly. In some areas,
the disposal of batteries in household or business trash may be prohibited.