Mäktig 710135 Owner's Manual page 8

 Never allow the DC output clamps to touch each other. This may
cause a spark.
FOLLOW THESE STEPS WHEN BATTERY IS INSTALLED IN
VEHICLE. A SPARK NEAR BATTERY MAY CAUSE A BATTERY
EXPLOSION. TO REDUCE THE RISK OF A SPARK NEAR BATTERY:
1. Position AC and DC cords to reduce the risk of damage by hood,
door, or moving engine part.
2. Stay clear of fan blades, belts, pulleys, and other parts than can
cause injury to persons.
3. Check polarity of battery posts. A positive (POS, P, +) battery
post usually has a larger diameter than a negative (NEG, N, -)
post.
4. Determine which battery post is grounded (connected) to the
chassis. IT IS NORMALLY THE NEGATIVE POST.
5. Connecting to a negative-grounded system: Connect the
positive (red) clip from a battery charger to a positive (POS, P, +)
ungrounded post of battery. Connect the negative (black) clip to
vehicle chassis or engine block away from battery. Do not
connect clip to carburetor, fuel lines, or sheet-metal body parts.
Connect to a heavy gauge metal part of the frame or engine
block.
Connecting to a positive-grounded system: Connect the
negative (black) clip from battery charger to negative (NEG, N, -)
ungrounded post of battery. Connect the positive (red) clip to
vehicle chassis or engine block away from battery. Do not
connect clip to carburetor, fuel lines, or sheet-metal body parts.
Connect to a heavy gauge metal part of the frame or engine
block.
6. Connect charger AC supply cord to electric outlet.
7. Charge battery as outlined in OPERATION INSTRUCTIONS
section.
8. When disconnecting charger, disconnect AC cord, remove clip
from vehicle chassis, and then remove clip from battery terminal.
CHARGING A BATTERY REMOVED FROM VEHCILE
8