e.Study all battery manufacturer's specific precautions such as removing or not removing the cell caps while charging and the recommended
rates of charge.
f. Determine voltage of the battery by referring to the car owner's manual and make sure that the output voltage selector switch is set at the correct voltage. If the charger has adjustable charge rate, charge the battery initially at the lowest rate.
15.CHARGER LOCATION
a.Locate the charger as far away from the battery as the DC cables permit.
b.Never place the charger directly above the battery being charged; gases from the battery will corrode and damage the charger.
c.Never allow battery acid to drip on the charger when reading the specific gravity or filling battery,
d.Do not operate the charger in a
e.Do not set a battery on top of the charger.
OPERATING INSTRUCTIONS
CHARGER CONTROLS
Charge Selector Switch: Allows for selection of one of three different operations.
1.12 VOLT - 2 AMP CHARGE: Best for small batteries used in motorcycles, garden tractors, etc.
212 VOLT - 10 AMP CHARGE: Charges all larger 12 volt batteries at 10 Amps. Output will drop as charge builds and battery voltage increases.
3.12 VOLT ENGINE START: - (12 volt electrical systems only) On this setting the charger will provide up to 50 amps additional current to aid in engine starting. Due to the very high currents involved, the charger must be allowed to cool for two to three minutes after ten seconds
of steady engine start cranking.
CHARGER OVERLOAD PROTECTION
The BCH7112 battery charger is protected from power overload by two automatic heat sensing switches. One is in the DC output circuit, the other is built on the transformer. The first will operate when a short circuit, reverse connections, or too long engine cranking, overloads the charger. The protector will open with a click sound and will close in a few seconds. The seconds protector will operate when a prolonged overload due to a defective battery or other excessive load causes the transformer to overheat. It will close after several minutes when the transformer cools.
16.DC CONNECTION PRECAUTIONS
a.Connect and disconnect the DC output clamps only after removing the AC cord from the electric outlet. Never allow the clamps to touch each other.
b.Attach the DC clamps to the battery post and twist or rock back and forth several times to make a good connection. This tends to keep the clamps from slipping off the terminals and helps to reduce the risk of sparking.
17.FOLLOW THESE STEPS WHEN THE BATTERY IS INSTALLED IN A VEHICLE. A SPARK NEAR THE BATTERY MAY CAUSE A BATTERY EXPLOSION. TO REDUCE THE RISK OF A SPARK NEAR THE BATTERY:
a.Position the AC and DC cords to reduce the risk of damage by the hood, door, or moving engine parts.
b.Stay clear of fan blades, belts, pulleys, and other parts that can cause injury to persons.
c.Check the polarity of the battery post. The POSITIVE (POS, P, +) battery post usually has a larger diameter than the NEGATIVE (NEG, N,
d.Determine which post of the battery is grounded (connected) to the chassis. If the negative post is grounded to the chassis (as in most vehicles), see item "e". If the positive post is grounded to the chassis, see item "f".
e.For
from the battery. Do not connect to the carburetor, fuel lines, or sheet metal body parts.
f. For
g.When disconnecting the charger, disconnect the AC cord, remove the clamp from the vehicle chassis, and then remove the clamp from the battery terminal.
h.See the operating instructions for length of charge information.
18.FOLLOW THESE STEPS WHEN THE BATTERY IS OUTSIDE THE VEHICLE. A SPARK NEAR THE BATTERY MAY CAUSE BATTERY EXPLOSION. TO REDUCE THE RISK OF A SPARK NEAR THE BATTERY:
a.Check the polarity of the battery post. The POSITIVE (POS, P, +) usually has a larger diameter than the NEGATIVE (NEG, N,
b.Attach at least a 24 inch long
c.Connect the POSITIVE (RED) charger clamp to the POSITIVE (POS, P, +) post of the battery.
d.Position yourself and the free end of the cable as far away from the battery as possible, then connect the NEGATIVE (BLACK) charger clamp to the free end of cable.
e.Do not face the battery when making the final connection.
f. When disconnecting the charger, always do so in reverse sequence of connecting procedure, and break the first connection while standing as far away from the battery as practical.
g.A marine (boat) battery must be removed and charged on shore. To charge it on board requires equipment specially designed for marine use.
19.VEHICLES WITH TWO BATTERIES
Many diesel vehicles and service vehicles are equipped with two batteries. This is to provide the vehicle with greater starting power capacity
2
