Even though battery-powered lawn mowers need less upkeep than gas-powered models, appropriate care is still required if you want to get the most out of your machine for many years to come. Regular cleaning of the undercarriage of the mower is required during the mowing season, and sharpening of the blades is required at least once a year to keep it in good working order. Using an air compressor to remove dust and dirt from the battery compartments can help maintain your lawnmower in top working condition as well.