DRAPER 70548 12/24V Battery Charger, 8 - 16A

User Manual - Page 13

For 70548.

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8. OPERATION AND USE
8.3 BATTERY INFORMATION
Typical readings.
Engine
Capacity
<1300cc
5 - 15Ah 15 - 30Ah 35 - 45Ah - 60 - 110Ah
>1300cc - - 45 - 65Ah 45 - 65Ah 60 - 110Ah
Diesel - - 60 - 90Ah 60 - 90Ah 60 - 110Ah
8.4 CHARGING TIMES
The charging time depends on the batteries charge condition. A partially charged battery will take
less time to charge than a fully discharged battery. The approximate charging time for a battery
can be calculated using the following equation:-
Capacity in Ah (battery)
Charging time/hours =
Charger output (Amps)
For example, a 45Ah battery would require approximately 11 hours to charge from a 4.2A battery
charger.
The above table is to give an average charge time.
If the charger you are using is an automatic or smart charger then it will automatically turn off or
revert to “float” charge status to maintain the battery in its fully charged state.
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