Charging a Lawn Mower Battery

What You'll Need
Crescent wrench
Battery charger
Lawn mower battery

When a lawn mower is taken out of winter storage, it may be necessary to recharge the battery. Here are some steps to recharge your lawn mower's battery safely and properly.

Step 1 - Remove the Battery

The style and make of the lawn mower and battery will dictate which tools are required. If the starter connection on the battery has insulated clips then you will need to use a pair of pliers. If the battery connection is held together by bolts then a crescent wrench will be necessary.

Step 2 - Choose a Well-Ventilated Area

When charging the lawn mower replacement battery it is essential that you do your work in a well-ventilated area. Harmful gases can be emitted into the air, so always stay away from any ignition sources during the charging process.

Step 3 - Connect the Charger to Battery Posts

The battery charger must be connected to the battery posts. The red clamp attaches to the positive connector and is identified with a (+) while the black clamp goes on the negative (-) post.

Once you have done this, plug in the battery charger and take a close look at either the charge meter or the LED light indicator. If using the former then once it reads zero (0) the battery is fully charged. If using the latter, then the green light will come on once the battery is completely charged.

Step 4 - Unplug the Charger

Unplug the charger from the outlet where it was plugged in and disconnect the clamps. Replace the battery in the reverse order.