FlowZone Typhoon™ 4-Gallon Multi-Use Continuous-Pressure 18V/5.2Ah Lithium-Ion Backpack Sprayer

Excellent backpack sprayer, it is well constructed and perfectly calibrated. The spray pattern is spot on. I can not say enough good stuff about it.

Just bought it in October and it’s already falling apart...

I've used this sprayer for 12 months ( used 6-7 times). Unfortunately its leaking from the hand sprayer already and the clear cover for the battery has broken off from faulty cheap materials. Its sprays way to much liquid per sqf for my applications.(ticks, weeds etc.) Overall, it has a cheap feel to it, definitely would not purchase this sprayer again. Real review...UPDATE---After 1 year and 4 months this piece of garbage stopped working all together. This sprayer was kept in a clean area. It's going to the dump, and a complete waste of over $400 dollars.

So close to being a great sprayer. The wand is good. The adjustable cone is as bad as they come. Far too much chemical comes out, even with lower setting. Pin stream is sloppy. I upgraded cone tip with spray systems cone tip. The straps are bad, feeding them back up through the top bracket makes them a bit better. I have recommended this unit with modifications to thousands of pest professionals. Highly recommend company comes out with an elite pro model with proper modifications.

I have not used one full battery charge yet so it might be premature to review but I am very pleased with the product. I'm really glad I bought the bigger battery which allows for a more powerful unit. If you know you need a sprayer like this and have decided to spend the money then you might as well spend up for the higher PSI output, it really does matter. Also, I was a little concerned about the weight but got used to it right away. When fully loaded it weighs around 50 lbs and that is a lot to hang on my aging spine. But I also knew that I could move the thing around on a dolly and may do so in the future - the hose is plenty long enough. Overall I am impressed with the quality of construction and am thrilled that I don't have to hand pump the pressure any more. The wand is mostly metal parts which is good - a plastic wand at this price point would not have been acceptable. Make sure to follow the cleaning instructions carefully. You will use up battery running clear water through it but if you don't it is almost guaranteed to clog. RoundUp is notorious for clogging sprayers. Even if that is the only use you have for a sprayer clean it anyway or it will become a maintenance issue.

Zero stars. Its not worth it. It leaks chemicals after 1 month of use.

Very easy to get on and off fully loaded. Works very well, a significant improvement over the 4 gallon hand pump back pack sprayer it replaced.. Throws a spray about thirty feet which just meets the distance needed. Locating the power switch while carrying the sprayer takes a bit of getting used to.

Almost the perfect Professional backpack. Build quality is good, the battery shield is my only gripe about it. The locking tab is not the best design for multiple uses all day on very hot and cold days. But other then that so for so good.