"A must for every workshop/garage. Testing, charging and keeping batteries fresh made easy. Fully automatic and economical battery charging by means of programmed charge characteristic. Clear LC display shows charging level. Reverse polarity protection, short-circuit protection, overload protection. Adapter for UK : 584.29.074.001, Adapter for AUS: 584.29.074.002 CAUTION: The battery charger must not be connected to lithium-ion batteries for longer than 24h, lithium-ion batteries are also not suitable for trickle charging. "