Victron energy 6V/12V-1,1A Manuel page 9

[16] Explosion hazard! A battery which is being charged may emit
explosive gases. Avoid smoking or naked flames in the vicinity of
the battery. Explosive and flammable substances such as fuel or
solvents should not be kept in the vicinity of the charger or the
battery.
[17] Danger of chemical burns! The acid in the battery is highly
corrosive. If skin or eyes come into contact with acid, rinse the
affected part of the body with excessive water immediately and
seek medical advice.
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