H-tronic AL 300pro Betriebsanleitung Seite 22

Connect firstly the red pin of the charger to the plus (+) part of the
battery and the black part to the minus (–) of the battery.
3. Connection to 230V AC
Connect the charger to the 230V plug, the green "Laden"-LED will shine.
Notice!
The product is short-term short circuit prevented! Longer lasting short circuits
(longer than 1 min.) must be prevented under all circumstances, otherwise
parts of the charger or the electronic might be overloaded. The green„Laden"-
LED only shines, if charging-current is present!
Attention!
 While charging the battery please pay attention to the right polarity!
 To prevent defects to the battery make sure to never deeply discharge
the battery!
 Make sure to have enough air supply!
 Open the cells of the lead acid battery before charging!
 Check the acid of the battery for longer charging!
 Check the acid of the battery in between always make sure not to have
any open fire, open light and glimmers close to the charged batteries
(danger of explosion due to gas)!
 Always check the charging instructions on the battery (normally printed
on the battery).
22 Automatic-Charger