DRAPER 70551 12/24V Battery Starter/Charger, 500A

User Manual - Page 15

For 70551.

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2. Clean battery terminals. Take care to keep corrosion from coming in contact with your eyes.
3. If required, add distilled water in each cell until battery acid reaches levels specified by battery
manufacturer. This helps purge excessive gas from cells. Do not overfill. For a battery without
cell caps, carefully follow manufacturer's recharging instructions.
4. Study all battery manufacturer's specific precautions, such as removing or not removing cell
caps while charging, and recommended rates of charge.
5. Be sure area around battery is well ventilated while battery is being charged.
6. If necessary to remove battery from vehicle to charge, always remove grounded terminal from
battery first. Make sure all accessories in the vehicle are off, so as not to cause an arc.
7. A marine (boat) battery must be removed and charged on shore. To charge it on board requires
equipment specially designed for marine use.
Note: It is important to determine the battery type before charging.
Warning: This charger will continue to charge even after the battery is charged.
Warning: Overcharging will damage the battery. This is a manual (non-automatic)
battery charger. A Manual charger will continue to charge and will not shut off. You must keep a
visual check on the ammeter to determine when the battery is charged.
AMMETER
The ammeter gives a reading of the AMP draw by the battery from the charger. When a fully
discharged battery is connected to the charger, the ammeter will read the maximum output rating
of the charger, depending on the AMP selection. The charge current will gradually taper down as
the battery approaches full charge. As the charge current tapers down, the ammeter needle will
also move down.
PREPARING TO CHARGE - FIGS 3 - 5
1. Make sure you have either a 12 volt or a 24 volt lead-acid battery and select battery charger
switch accordingly.
- NOTE:
These chargers can
only recharge 6V batteries
when connected in series
creating a 12V supply. Do not
attempt to charge a single 6V
battery or multiple 6V batteries
when connected in parallel (as
this only increases the
amperage).
12V (2 X 6V SERIES) DIAGRAM
12V SERIES DIAGRAM
24V SERIES DIAGRAM
+
6V 6V
12V
+-
+
12V
-
-
+
24V
-
+
12V 12V
24V
+--
FIG.3 FIG.4
FIG.5
9. OPERATION AND USE
- 15 -
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