Using Your Battery Charger, Setting the Controls

Using Your Battery Charger

For best results from your battery charger, learn to use it properly. This section tells how to set the controls and how to charge a battery in or out of the vehicle.

Setting the Controls

SELECTOR SWITCHES:

A 2-way switch is used to select the 2-AMP or the 10-AM P charge rate.

AMMETER:

The AMMETER indicates the measured amount of amperes being drawn by the battery. When you first start charging a battery, the reading will be high, with the needle near 10 using the 10 amp charging rate. As the battery charges, the needle will fall to about 4 or 5 amps, indicating a charged battery.

At the 2 amp charging rate, as the battery charges the needle will fall to about 3/4 to 1 amp indicating a charged

battery.

The percent of charge scale is intended as a visual aid to help simplify reading the state of charge of the battery. The meter is scaled for use with the 10 amp charge rate only. For the 2 amp charge rate use the red triangle. The percent of charge is based on current drawn by the battery. For this reason accuracy will vary with the size and battery type.

10 AMP

2 AMP

DC AMPS

CHARGE % 100 75 50 25 0

Charging Your Battery

Charging a battery in the vehicle:

1.Arrange the power cord and charging leads carefully to avoid damage that could be caused by the hood, door, or moving engine parts.

2.Keep clear of fan blades, belts, pulleys, and other parts that can cause injury.

3.Check the polarity of the battery posts es indicated on the battery case: POSITIVE (POS, P, or +) and NEGATIVE (NEG. N or-). NOTE: The positive post on top-post batteries is usually larger than the negative post.

4.Identify which battery post is ground or connected to the chassis. THE NEGATIVE POST IS

NORMALLY THE ONE THAT IS GROUNDED.

5.To charge a negative grounded post system: Connect the red (POSITIVE) battery charger clamp

to the ungrounded POSITIVE (POS, P, +) post of the

battery, Then connect the black (NEGATIVE) clamp

to a heavy, unpainted metal part of the chassis orNEGATIVEGROUNDEDSYSTEM engine block, away from the battery. Do not connect

clamp to carburetor, fuel lines, or sheet metal parts. To charge a poslUve grounded post system: Connect the black (NEGATIVE) battery charger clamp to the NEGATIVE (NEG, N, -) ungrounded

post of the battery. Then connect the red (POSITIVE) clamp to a heavy, unpainted metal part

of the chassis or engine block. Do not connect clamp to carburetor, fuel lines, or sheet metal parts. IMPORTANT: Wear safety glasses and face away from the battery while making connections.