Craftsman nextec HAMMERHEAD 320.61352 Operator's Manual page 9

When the battery pack is not in use, keep it away from other metal
objects, such as paper clips, coins, keys, nails screws or other small
metal objects that can make a connection from one terminal to another.
Shorting the battery terminals together may cause burns or a fire.
Under abusive conditions, liquid may be ejected from the battery.
Avoid contact, if contact accidentally occurs, flush with water. If liquid
contacts eyes, additionally seek medical help. Liquid ejected from the
battery may cause irritation or burns.
Battery tools do not have to be plugged into an electrical outlet;
therefore, they are always in operating condition. Be aware of
possible hazards when not using your battery tool or when changing
accessories. Following this rule will reduce the risk of electric shock, fire, or
serious personal injury.
Do not place battery tools or their batteries near fire or heat. This will
reduce the risk of explosion and possibly injury.
Do not crush, drop or damage the battery pack. Do not use a battery
pack or charger that has been dropped or received a sharp blow. A
damaged battery is subject to explosion. Properly dispose of a dropped or
damaged battery immediately.
Batteries vent hydrogen gas and can explode in the presence of a
source of ignition, such as a pilot light. To reduce the risk of serious
personal injury, never use any cordless product in the presence of open
flame. An exploded battery can propel debris and chemicals, if exposed,
flush with water immediately.
Do not charge the battery tool in a damp or wet location. Following this
rule will reduce the risk of electric shock.
Under extreme usage or temperature conditions, battery leakage may
occur. If liquid comes in contact with your skin, wash immediately wit
soap and water, then neutralize with lemon juice or vinegar, if liquid gets
in your eyes, flush them with clean water for at least 10 minutes, and then
seek immediate medical attention. Following this rule will reduce the risk of
serious personal injury.
For best results, your battery tool should be charged in a location where
the temperature is more that 32°F (0°C) but less that 104°F (40°C). Do
not store outside or in vehicles.
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