Honda HSS970 Owner's Manual page 36

The battery gives off explosive gases; keep sparks, flames and
cigarettes away. Provide adequate ventilation when charging or
using batteries in an enclosed space.
The battery contains sulfuric acid (electrolyte). Contact with skin or
eyes may cause severe burns. Wear protective clothing and a face
shield.
−
If electrolyte gets on your skin, flush with water.
−
If electrolyte gets in your eyes, flush with water for at least 15
minutes and call a physician immediately.
Electrolyte is poisonous.
−
If swallowed, drink large quantities of water or milk and follow
with milk of magnesia or vegetable oil and call a physician.
KEEP OUT OF REACH OF CHILDREN.
Use only distilled water in the battery. Tap water will shorten the
service life of the battery.
Do not fill the battery beyond the UPPER LEVEL. If overfilled,
electrolyte may overflow and corrode snowblower components.
Immediately wash off any spilled electrolyte.
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