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.
EGO has two 21-inch deck 56-volt lithium-ion cordless battery mowers that are quite popular and share a number of similarities: the LM2101 and the LM2102SP. The major differences between the two are that the LM2102SP is self-propelled has a larger-capacity 7.5Ah battery and it costs $100 more. For the purposes of this review we are going to focus on the features they share in common.
The EGO 21-inch handles side discharge bagging and mulching. It is designed for use in all weather and even features LED headlights for when mowing in heavily-shaded areas or after dark. There are six deck heights to pick from and adjustments are made with a single lever. EGO backs the quality of their mowers with a five-year limited warranty.