LG K4 User Manual page 111

Replace the battery when it no longer provides acceptable performance. The
battery can be recharged several hundred times before replacement.
Battery life will vary due to usage patterns and environmental conditions.
Use of extended backlighting, Media Net Browsing, and data connectivity kits
affect battery life and talk/ standby times.
Actual battery life will depend on network configuration, product settings,
usage patterns, battery and environmental conditions.
Always unplug the charger from the wall socket after the phone is fully charged
to save unnecessary power consumption of the charger.
Explosion, Shock, and Fire Hazards
Do not put your phone in a place subject to excessive dust and keep the
minimum required distance between the power cord and heat sources.
Unplug the power cord prior to cleaning your phone, and clean the power plug
pin when it is dirty.
When using the power plug, ensure that it is firmly connected. If it is not, it may
cause excessive heat or fire.
If you put your phone in a pocket or bag without covering the receptacle of the
phone (power plug pin), metallic articles (such as a coin, paperclip or pen) may
shortcircuit the phone. Always cover the receptacle when not in use.
damage the battery and cause an explosion.
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