Komatsu PC78US-6 Operation & Maintenance Manual page 169

OPERATION
Battery
The battery generates flammable gas, so do not bring fire or sparks near the battery.
Battery electrolyte is dangerous. If it gets in your eyes or on your skin, wash it off with large amount of water, and consult a
doctor.
Battery electrolyte dissolves paint. If it gets on to the bodywork, wash it off immediately with water.
If the battery electrolyte is frozen, do not charge the battery or start the engine with a different power source. There is danger
that the battery may explode.
Battery electrolyte is toxic, so do not let it flow into drainage ditches or spray it on to the ground surface.
REMARK
°
COLD WEATHER OPERATION
3 - 117