Electric knapsack sprayers

[JimM169]

Applied some iron sulphate to the lawn at the weekend but there's approx 1000m2 and it soon gets boring pumping away with a manual knapsack sprayer. Has anyone got any recommendations for a battery type, ideally one that could take Milwaukee batteries
Thanks

[Greenmantle]

Matabi / Goizper
nothing else will do
they are like hens teeth on ebay
just picked up a second 20L one since I was after a backup battery.
like you iron sulphate and other stuff for a largest garden
was suffering badly from tennis elbow with the hand pump ones.

[biggiles]

I don't have one, but for a similar area I spread granules, much easier? Either by hand, or pulling a spreader behind the ride-on.

[smifffymoto2]

Have a look at Gardiner pole systems.

Their backpack sprayer is very widely used in the exterior/window cleaning industry.