Guest 2722-B Owner's Manual page 3

6. Do not drop a metal tool onto the battery. It may spark, short circuit the battery and may
cause an explosion.
7. Remove all personal metal items such as rings, bracelets, necklaces, and watches when
working near a lead-acid battery. A battery can produce short circuit currents high enough to
weld a ring or the like to metal, causing a severe burn.
Preparing to Charge Precautions
Before charging a battery with the charger, read the following precautions:
1. Do NOT operate the charger if the input or output cables or an LED is damaged.
2. Make sure all accessories on the product you are charging are OFF.
3. If the battery or batteries must be removed from the product, always remove the grounded
terminal from the battery first.
4. Be sure the area around the battery is well ventilated while the battery is being charged. Gas
can be forcefully blown away using a piece of cardboard or other non-metallic material as a
"hand fan".
5. Clean battery terminals. Be careful to keep corrosion from coming in contact with your eyes.
6. Add distilled water in each cell until battery acid reaches levels specified by the battery
manufacturer. This helps purge excessive gas from cells. Do not overfill. For a battery without
cell caps, carefully follow the manufacturer's recharging instructions. Check water levels
frequently.
7. Study all battery manufacturer's precautions.
8. Never allow ring terminals to touch each other.
9. NEVER charge a frozen battery.
10. Please be sure the DC system to which the charger is connected is not drawing excessive
current from the battery for extended periods of time while the charger is operating. This is
important to ensure the charger correctly transitions through each charging stage to finish
with the float voltage level. If the DC system is drawing continuous current while charging,
reduced life or damage to the battery may occur.
Grounding Precaution
Do not operate this charger with a two bladed ground adapter plug or extension cord.
Doing so can result in serious personal injury.
CAUTION: To reduce the risk of shock, connect only to a properly grounded outlet.
3. INSTALLING THE CHARGER
Choosing Mounting Location
The charger should have at least eight inches of unobstructed area on all sides of the unit for
effective cooling. The case of this charger will become warm during operation. Do not install onto
a carpeted, upholstered, or varnished surface.
I-27122 Rev E
DANGER
3
EC 3429