[Shivetya]

Price. Reliability. Performance. Confusion

Price is obvious, buying a second battery can be a hundred dollar affair and then the confusion sets in as a lot of time the spare batteries are not exactly the same as the original, most manufacturers offer spares in lower amperage to make the price lower. Confusion over volts versus amperage and how it applies to functionality. Performance system because these air cooled solutions will run down faster in tall or wet grass and battery reliability hasn't been great.

anecdotal I owned a Ryobi 40V mower. Sold with a 5Amp battery. It was around four hundred dollars. A second battery a hundred and fifty dollars. If you had anything beyond a small lawn you need two or more else you just take an hour off. Grass gets tall or wet the motor works harder and battery life takes a hit and worse it got hot. A hot battery will not charge. Needless to say I returned it. the New 56V systems use a completely different batter and the higher amperage batteries are approaching four hundred dollars just for the battery.