Fronius Acctiva Seller Instructions De Service page 45

Risk of explosion! Oxyhydrogen is generated in the battery during charging.
Battery acid is corrosive and MUST be kept away from eyes, skin and
clothes.
Ensure an adequate supply of fresh air during charging. Maintain a distance
of at least 0.5 m (19.69 in.) between battery and charger during the charging
procedure.
Do not dispose of used chargers with domestic waste. Dispose of them
according to safety rules.
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