LG Lucid VS840 Owner's Manual page 199

Your phone is an electronic device that generates heat during normal
operation. Extremely prolonged, direct skin contact in the absence of
adequate ventilation may result in discomfort or minor burns. Therefore,
use care when handling your phone during or immediately after operation.
Charger and Adapter Safety
The charger and adapter are intended for indoor use only.
Insert the battery pack charger vertically into the wall power socket.
Only use the approved battery charger. Otherwise, you may cause
serious damage to your phone.
Use the correct adapter for your phone when using the battery pack
charger abroad.
Battery Information and Care
Please dispose of your battery properly or take it to your local wireless
carrier for recycling.
The battery doesn't need to be empty before recharging.
Use only LG-approved chargers specific to your phone model since they
are designed to maximize battery life.
Do not disassemble or short-circuit the battery.
Keep the battery's metal contacts clean.
Replace the battery when it no longer provides acceptable performance.
The battery can be recharged several hundred times before replacement.
Recharge the battery after long periods of non-use to maximize battery
life.
Battery life will vary due to usage patterns and environmental conditions.
Use of extended backlighting, Browser, and data connectivity kits affect
battery life and talk/ standby times.
The self-protection function of the battery cuts the power of the phone
when its operation is in an abnormal state. In this case, remove the
battery from the phone, reinstall it, and turn the phone on.
Safety
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