20L Battery-Powered Garden Sprayer for Makita 18V Batteries: Which Packs Fit, Which Do Not - and What 20 Litres Really Weighs on Your Shoulder
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About this product
A 20L electric sprayer is aimed at people who spray a lot in one go - orchard rows, greenhouse beds, fence lines, weeds along a drive - and who are tired of pumping a manual knapsack every few metres. This one replaces the hand pump with a battery-driven pump, so holding the trigger gives continuous pressure instead of pumping by hand, and it runs on Makita 18V packs rather than a proprietary battery. Two checks matter before you order. First, the battery interface: it takes the Makita 18V slide-on terminal, the LXT / B-series such as BL1830, BL1840, BL1850 and BL1850B. The 18V G-series (BL1813G, BL1413G, DC18WA) uses a different terminal and will not fit, and 12V CXT packs are out too. Second, and easy to forget: 20L of liquid weighs about 20kg, and on a shoulder strap that is a genuine load over a long run - if your spraying is mostly a few litres at a time on a balcony, a 5L or 8L unit will be far kinder to your back. Confirm with the seller whether a battery and charger are included (most Makita-compatible tools ship bare), how far the wand reaches, and what the spray rate and working pressure are. Rinse the tank, hose and nozzle after every use, especially with weedkiller or oil-based products, or the pump seals and nozzle will suffer.
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Pros & cons
Pros
- Electric pump replaces the hand pump - hold the trigger for continuous pressure instead of pumping every few metres
- 20L capacity covers large runs in one fill: orchard rows, greenhouse beds, fence lines and long edges
- Runs on Makita 18V slide-on packs, so anyone already on that system shares batteries instead of buying another
- Shoulder-strap design keeps both hands free for the wand while you walk the line
Cons
- Fits only the Makita 18V slide-on terminal (LXT / B-series such as BL1830, BL1840, BL1850) - the G-series BL1813G / BL1413G, DC18WA and 12V CXT use a different terminal
- 20L of liquid weighs around 20kg - a shoulder-carried load that becomes tiring on long runs, and oversized for small balcony jobs
- The title does not say whether a battery and charger are included; most Makita-compatible tools ship bare, so confirm before ordering
- Tank, hose and nozzle must be rinsed after every use - weedkiller and oil-based products left in will damage the pump seals and nozzle
