This battery powered sprayer worked as promised. Battery charged fairly quickly, (appr 2 1/2 hrs) and sustained the pump throughout the spraying process until the tank was empty. I especially like that the shut off valve locks in the open position and that I can move the wand around with ease. It was a bit concerning to receive a pack of o'rings and gaskets with no instructions as to whether they were replacements or needed to be installed (or where). Everything has worked like a charm, so I am assuming they're replacements. I would prefer to have the battery protected with something other than a zippered enclosure but the cord is long enough, I can easily carry it in my pocket. Overall, I'm a happy camper.

I needed a sprayer for some boxwoods that are always being attacked by thrip. This product works really well for this purpose.

- The price is great.
- The nozzle control is excellent.
- The spray pattern allows full leaf coverage (top and bottom) and allows access to the interior of the plants.
- The USB battery pack is easy to charge. I chose velcro to attach it to the tank so it is not flopping around.
- No hand pumping required (although it is available.)

So far, I have had much better control of the invasive thrip than with hoses attached to bottles.

The only small downside is that I only need 1/2 gallon per use. The orange plastic is quite dense so it makes it a bit difficult to gauge where you are when filling the tank.

I'll start off with the bad: the instructions. According to the instructions, the nozzle and extension tube should have already been together, but they weren't. I just got the separate pieces with a bag full of different sized O-rings and seals. Absolutely no instructions on how to put it all together because it assumed it was already together. Luckily, I've done stuff like that a lot before, and it's fairly easy to figure out how it goes together.

There was only one other issue. I filled up the tank and turned it on. The pump was working, but it wasn't pressurizing enough to spray anything out. But I saw someone else on here say to manually pump it up in the beginning, and the battery powered pump will keep it going from there. So I did that, and it worked. After manually pumping it in the beginning, the electric pump kept it working until the tank was empty.

After all of that, I have to say this thing is awesome! It sprayed really well, and the size of the tank was the perfect size to spray around both sides of my privacy fence, around my whole house and external garage, and along the retention wall that is along one whole side of my property. The tank ran out exactly when I was finishing up everything that needed done. I was happy to not have to ever manually pump it again after the beginning. I'm really happy with this purchase.

Other than possibly receiving a bad sprayer from the factory, I'm not sure why some people are having difficulty with it. The tube in the container has a good filter on it. The included hose is very long. The trigger has both a spray and lock on it to prevent accidental spraying. The pump is adequate, spraying a good 10 feet when the nozzle is set to stream instead of mist. The rechargeable battery is more than enough to power the pump. The box included extra rubber seals/washers (note these are not needed upon initial assembly). Putting the thing together couldn't be easier. I quickly sprayed an area with herbicide that is difficult for me to get to, so adding in 2' weeds/grass makes it even more fun to get into. With this sprayer I was able to cover the entire area with the herbicide. Once dead I'll remove the grass/weeds. After spraying I emptied the tank, filled with water and ran the pump until clear water was coming out of the spray nozzle. I shut off the pump then drained the hose by holding the tank up high and opening the spray wand trigger allowing the water to drain out. The sprayer is now waiting in the garage for its next job, most likely pesticide around the base of my house. The only complaints I have are that the power switch on the battery pack is a little finicky to get to turn on and off, it works it's just touchy. The carry strap is a little shorter than I would like, but it works. I would like to see some sort of snap in holder on the side of the tank for the wand. It would also be nice to either have a power button on the wand or a pressure sensor on the pump so it would shut off when not in use instead of having to reach for the power switch on the pump itself. I like that the tank includes a manual pump so it can be used like a regular sprayer if absolutely needed. Compared to any of the other powered sprayers, I like this one the best. If I had to replace the pump on this sprayer I most likely could if I looked for the right pump. On most others the pump is built in, so if it dies you either have to disassemble the sprayer to get to the pump or just toss the thing and try another brand. If the pump dies on this sprayer, I can fairly easily replace it. The only thing that would make this powered sprayer easier to use is if someone else would spray for me! Good product, good price. Properly clean and maintain it and I don't see how this could ever be a bad buy.

Review Update. July 31 2021. I wanted to share some tips I discovered and what to expect from the Fivo sprayer. This is an updated more accurate review.

This sprayer's average stream distance is around 7 to 8 ft. I can easily get it to 20 ft if I tilt the nozzle 30 degrees give or take. Shooting from chest height to the ground. But thats only if I'm spraying just water. The viscosity will change once you add product. In fact there's a good chance the pump will have trouble starting a pull for anything thicker than plain water. But that doesn't mean the sprayer doesn't work. The pump just needs a little help getting started then it'll take over once you have a spray going.

1st what you must do is unscrew and remove the pressure release valve cap. Then put the smallest sized O-ring (extra o-rings comes with the sprayer) onto the little nipple underneath valve cap. Then screw the valve cap back onto the tank nice and tight but not too tight. Now pressurize the tank by pumping the handle. Once the tank is pressurized, squeeze the trigger to start spraying. While it's spraying from the pressure in the tank, turn on the battery pump. The battery pump will continue spraying after the air pressure in the tank is all gone.. Note: if you turn off the pump, you'll need to restart the process all over again. Also it's important to keep in mind that the output from the battery pump will not be as strong as the hand pump. Frankly it's pretty weak. But it really depends on the flow thickness of product used. As long as I don't have to keep hand-pumping the tank, its fine with me. It's just nice having both options. This is the only sprayer that gives you that choice.

Oh and another tip. If the tank starts making a whining noise while using the battery pump, just unscrew the pressure release valve. You don't have to remove it. Just unscrew it to allow air to easily get in the tank. The little water pump doesn't require a sealed tank. It's just siphoning liquid.

I really like this sprayer for the options it provides. No other battery sprayer gives you the choice of either hand pump or battery operation. And the Fivo allows you to use any battery bank. The battery isn't proprietary and built into the pump like other brands. And tbh the pressure isn't all that different from other brands. They're all equally pretty weak! Remember this isn't a pressure washer. If you keep your expectations within reason you'll happy with this product. It makes the work of spraying your yard or home so much easier.

I'm keeping it 4 stars which is excellent in my book. Only perfection gets 5 stars and unfortunately nothing is perfect..