2. Before charging, disconnect the positive cable and ground cable from the battery, first the ground cable.
3. Before charging, check the electrolyte level and add distilled water if necessary.
4. Before charging, the battery must have a temperature of at least +10°C. Defrost a frozen battery before charging. A charged battery freezes at a temperature of -65°C, a half-charged battery at a temperature of -30°C, a discharged battery at a temperature of -12°C.
5. Charge the battery only in a well-ventilated area. When charging the battery installed in the car, leave the hood open.
6. During normal charging, the charging current value is approximately 10% of the battery capacity. (A 50 Ah battery has approximately 5.0 A). The charging time can be taken as 10 hours.
7. Connect the positive pole of the battery to the positive pole, the negative pole of the battery to the negative pole of the charger.
8. During charging, the electrolyte temperature should not exceed +55°C; if necessary, interrupt charging or reduce the charging current.
9. Charge until gas starts to be released from the cans and the density of the electrolyte and voltage stop increasing during the next 3 measurements after 1 hour.
10. After charging, check the electrolyte level and add distilled water if necessary.
Warning! The engine must not be run without the battery connected, otherwise the electrical system will be damaged.
Fast Charging/Start Assist
Charging the battery or providing jump-start assistance with a fast charger may only be done in exceptional cases, as the battery is then exposed to a very high current. The fast charging current may be a maximum of 20 A. A battery that has been stored for a long time must not be charged with a fast charger, observe the instructions for storing the battery.