You can recharge your battery with an electric DieHard battery charger even if you don’t have another vehicle nearby. It takes a little longer, but it’s easy and only requires an AC outlet. Double-check the charger is compatible with the voltage of your battery. A 12 V battery is used in most automobiles. However, In this article, you will learn how to use diehard battery charger engine starter.

3 Steps: how to use diehard battery charger engine starter

1st step

Configure the charger of the battery to the appropriate voltage, which is often 12 volts.

2nd Step

Set the amps on the output selection to a target output.

3rd step

In the positive post, attach the positive battery charger clamp. Then negative charger to neg. Post. In the following, Connect the charger to a grounded electrical socket. Charge the battery and finally unplug the neg. charger. 

While preparing to charge your battery, it is critical that you follow these guidelines. Make sure you have a lead-acid battery with a voltage of 12 or 6 volts. Match the voltage rating of the battery to be charged with the selector switch. Clean the terminals on the battery. Make sure rust does not get into or around your eyes.

If the manufacturer specifies, add distilled water to each cell of a battery with removable cell caps until the battery acid reaches the recommended level. This will aid in the removal of excess gases from the cells. Take care not to overfill the container. There is no need to take any action if you have a sealed battery with no cell covers. Proceed to the following step, which is indicated below. Take the time to read all of the battery manufacturer’s specific warnings, such as whether or not to remove the cell caps when charging and the suggested charging rates.

Put on your safety glasses. While the battery is being charged, make sure the area around it is sufficiently aired. If the battery must be removed from the vehicle to be charged, always disconnect the battery’s grounded terminal first. To avoid sparks, turn off all of the vehicle’s accessories.

Learn how to use your battery charger properly for the greatest results. This section explains how to operate the controls, charge the battery in or out of the car, and use the engine start functions.

CONTROLS

The front of the charger houses all of the controls. To get the right charge level for your battery, follow these steps.

SWITCHES:

There are three switches on your charger:

• Select a charge rate with the right switch—2 AMP charge, 15 AMP charge, or 125 AMP ENGINE START function.

Battery Voltage

Choose your battery’s voltage. 12 volt applications will be the most common.

• Match the battery voltage (either 6 or 12 volt) with the left switch.
• Select a charging type (MANUAL, AUTO, etc.) with the center switch.

• Only use the MANUAL setting if you often check the charging progress. When the battery achieves full charge, the charger will not cease charging, potentially harming the battery if left on for too long.
• When the battery is fully charged, you must monitor it and unplug the charger.
• Use the AUTOMATIC amperes that the battery is drawing. When charging a battery for the first time, the reading will be high, with the needle reaching 15 when using the 15 amp charging rate.
• The needle will fall to roughly 7 or 8 amps in the MANUAL setting as the battery charges, indicating a charged battery.

DEEP-CYCLE

This is the default setting for all deep-cycle battery charging. When the battery reaches full charge, the charger will automatically stop charging and resume charging when the battery is needed.

When the charger’s control circuit detects a complete charge, the needle will fall to zero and the charger will shut off in either AUTOMATIC setting. The voltage of a freshly charged battery will drop immediately after charging stops, and if the charger is left connected, charging may continue. This off-and-on cycling will continue until the battery’s voltage lowers to the point where the charger must be restarted.

• Except for deep-cycle batteries, use the AUTOMATIC REGULAR setting. When the battery reaches full charge, the charger will automatically stop charging and resume charging when the battery is needed.
• A badly drained battery may not have enough charge to automatically start the control circuit. Charge on manual until the battery is sufficiently charged to accept an automatic setting in this situation.

AUTOMATIC

There will be very little needle movement at the 2 amp charging rate.

The needle will swing into the Start (red) portion of the scale when turning the engine while activating the ENGINE START feature.

What is the best way to read a DieHard battery charger?

The charger of the battery must be plugged in and turned on before the meter can be read. The meter’s needle will move when you turn it on. The needle will move to that point if the charger is set at ten amps. The needle will descend as the battery charges.

• Important Safety Reminders
• Charge in a well-ventilated environment at all times.
• Before performing any repair or cleaning, unplug the charger from the outlet to avoid electrical shock.
• The charger should not be disassembled. If service or repair is required, take it to a qualified service specialist. A fire or electrical shock could develop from improper assembly.
• Only use attachments that the manufacturer recommends or sells. The use of non-manufacturer-recommended accessories might result in fire, electric shock, or injury.
• Charge only lead-acid rechargeable batteries, such as those found in automobiles, trucks, tractors, planes, vans, RVs, trolling motors, and other vehicles. Other than in an automotive application, this charger is not designed to provide power to a low voltage electrical system.
• Finally, read all of the warnings and instructions included with the charger, battery, and vehicle or equipment that uses the battery.