Raider RD-BC12, Руководство пользователя

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2.4. After the battery has been connected to the charger, you can connect the charger to a socket
supplying 230V~50Hz. Do not connect it to a socket that supplies any other mains voltage.
Calculating the charging time.
The charging time depends on the charge status of the battery. If the battery is fully discharged,
the approximate charging time can be calculated using the following formula:
Charging time (h) = Battery capacity in (Аh) / charging current (A).
Example: 16 h = 40 Аh / 2,5 A
A high initial current, approximately equal to the rated current will flow in a normally discharged
battery. As the charging time increases, the charging current will fall. Old batteries for which the
charging current does not fall are suffering from a defect, such as a cell short circuit or ageing damage.
A high charge can only be identified by measuring the acid density using an acid tester.
Acid density values (kg/l at 20°C).
1.28 Battery charged;
1.21 Battery semi-charged;
1.16 Battery discharged;