Note: While the internal cells are 18V nominal, CRAFTSMAN markets this system as "V20" (Max Initial Voltage). The model CLM18VRB is universally known as a 20V Max lawn mower.
When selecting a CLM18VRB or equivalent 18V pack, consider:
The CLM18VRB takes the standard slide-pack style battery found on all modern CRAFTSMAN V20* tools. You can use:
Chassis: The mower features a plastic deck. While metal decks are generally preferred for durability, the plastic (polypropylene) used here is high-impact and UV resistant. For a mower in this price bracket, the build quality is surprisingly robust. It flexes slightly under heavy load but doesn't feel brittle.
The Handlebar: This is a mixed bag. The handlebar is telescopic, allowing users of different heights to adjust it comfortably. However, the mechanism relies on plastic clamps and notched plastic teeth. Over time, these can wear down, causing the handle to wobble if not tightened firmly. It folds down completely, which is excellent for storage in small sheds or garages.
Wheels: The wheels are plastic with a tread pattern. They are small (approx. 14cm front, 16cm rear). They are durable enough for flat lawns but lack ball bearings, meaning they add a slight bit of friction when pushing compared to premium mowers.