I know that many people prefer to hose their mowers down with a garden hose. I admit I have done it. Still doing that is risky. If water gets into the wiring air filter or engine you could really do some damage. Hand washing with damp rag is a drag but also your safest bet.
To sharpen them secure in a table vise. Now attach the blade sharpener to the end of your power drill. Make sure to wear eye protection and work gloves. Carefully use the sharpener to hone the cutting edges of your blades. Go slowly at first to get the feel of the best angle for meeting the blade and sharpener.
More than 1100 buyers have left five-star reviews of the LM2101 on Home Depots website. Austing wrote a review after a year-and-a-half of ownership and was impressed with how lightweight and quiet it is. He shared a story of hitting a metal pipe in his yard with the mower. It damaged the electronics and EGO sent him a brand new mower to replace it. Buyers also appreciate that the battery only takes about 40 minutes to recharge from dead.