Beware when buying these money pits, the batteries last slightly over
one year (just after the warranty runs out) and cost over 200 dollars
to replace.
One way to get around this is to buy insurance on the lawnmower and
the batteries will be replaced for free (the insurance covers the
cost) and if the lawnmower packs it in you get a new one. This is only
recommended if one must have an electric lawnmower with rechargeable
batteries, it's expensive but worth the cost if the insurance is also
purchased, for example, people with environmental sensitivities find
them useful.