VIVOSUN4 Gallon Battery Powered Backpack Sprayer Electric Pump Sprayer with Four Nozzles for Garden Lawn, Orange

the battery inside large 12vdc 10ah lead acid sealed battery mine came fully charged, 12.64vdc. is that.I need this for top of ladder work to put chems + water far up grade 1slope huge roof, black mildew treatment.if too heave I use only 1 gallon of water, at a time. your call , your fitness.to replace the battery , this one is6-DMZ-10 (2hr) , sealed lead acid, with screw terms. not fastons, but could be modified to use more common batteries sold in USA for UPS power systems, VRLA battery. 12v-10hr easy. and cheap.battery size is 6.875L, 3.875W, and 3.875 tall. there is 1inch more room on top of battery.the fully charged battery with charger on, is 13v, proving floating the battery correctly.there is beeper module inside to beep at 10.5vdc low battery, best is stay above 11 and 12.6v best of all for longer battery life, (keep it charged) the charger is 3stage and green LED means fully charged, per manual.the reason i used this rig, is distance, only for max squirting, stream mode, not spray cone.NO AC power cord working. and max distance, for sure a expensive pressure waster works best but in net to have correct chem mix as most pressure washers can not do under $350 bucks.hand pumps are weak and a danger up on ladders, wow.charge time from 50% SOC is about 2.5 hours. (5ha div, 2amp =)do not run the unit if it beeps, charge it first. or damage to battery can happen,.last what is a good NEW cheap battery , to usesearch at amazon for one that is super common, just needs new F2 tabs. (modified)screw top batteries are not easy to find like this. (lawn mower battery yes but are too tall)ExpertPower 12V 12AH Sealed Lead Acid (SLA) || LW-6FM12S, LHR12-12, HR1251W, GPS12-12F2 and BP12-12 Replacement Battery Black EXP1212used in vast UPS power backup and in emerg. lighting systems , making them low price, for commonality.they keep deleting my personal photos, here.but I did get my roof done today, the top of roof huge is 41foot run from gutter up.i got 30ft of that done , and used water balloons to it the last small section. roof here is 29foot rise and run.removing the nylon whirly gig inside red nozzle I can spray out 29 feet or a tad more.photo of this washer whily gid above. next to a quarter coin. uSA.this gig device, is very restrictive, remove it.I love this sprayer,PS: can even turn it on or off, (switch) up high on a ladder left hand action, arthritis and all.run time is 5hours. to 1/2 charge, going farther invites battery damage.

After owning a landscaping company for over 20 years I was skeptical when purchasing this sprayer. I own both Stihl and echo pump sprayers which are built using more substantial/durable plastic/metal. However, this sprayer works exactly as described, and is so much more efficient and consistent compared to constantly having to pump to keep pressure. Those who complain about the weight of the unit obviously do not understand that 4 gallons of water is in fact heavy. Based off of my experience, this sprayer full weights as much as my other sprayers which hold 5 gallons. This sprayer holds only 4 gallons because the battery pack is internal. The battery life has not been an issue. I have sprayed 30 gallons in one day without issue, and I charge it weekly just to be safe. I have never had the battery lose power. Overall, I am Super pleased and it works as described!! I wanted those in the business to hear a real review from someone who has used other commercial sprayers.

Great sprayer overall. Negatives for me are having to screw the charger on the unit. Would be better if it could just be pushed in. Another Negative is there is no padding on the unit which lays against the back. The straps don't secure as well as I would have thought. I would still recommend as it is a great price for it's abilities.

Read this with a grain of salt because I am seriously displeased. I RARELY write a negative review because I figure if it is working for others, great. I don't want to tank someone's business. If you read the other reviews, you'll see that this works well for most of the people who bought and reviewed it It did not work well for me. Customer Service: I posted two questions for the seller 3 days ago in preparation for use. Got nothing. The sprayer was all good until I got to the wand. Spray was going out the nozzle, and leaks were coming back me. I stopped the spray that was coming back at me with double "O" rings. Shouldn't have to do that. I tried every nozzle. You can switch nozzle, but you cannot adjust these. In my cheapo pump unit, in my hand held spray bottles, I can crank down the nozzle to get a mist or open it up to get a stream and everything in between. With this, you get the nozzle. I am spraying some nasty stuff to kill rampaging blackberry vines. Each of the nozzle gave me a LOT of mist. I cannot have this the poison I'm spraying drifting around my family orchard or the commercial orchards on either side of me turned into a mist. I need to be able the spray to be heavy enough not to mist. I tried to figure a way to decrease the pressure and failed. I tried hooking my cheapo unit wand up to this unit, but I could see this unit has fine threads and my cheapo unit has course. I was ready to fall in love with not having to pump, but two hours later, I packed it away. I didn't spend this much money to have to adapt and make do. If the manufacturer or anyone else can tell me what I might be doing wrong, I'll rewrite this.

Best value battery operated packed backpack sprayer on the market

The spray function works great. The back pack straps are horrible, buckles do not lock in.Clumsy to put on.

Bought the first one about 12 months back, it lasted about 10 months, before it wouldn’t take a charge, so we bought the second one, two weeks into it the hose split in two. No problem I think I will take it off the first. Bought the third as a back up unit, it arrived the day the second unit stopped working. Quickly put the third one into us and it lasted 2 days and liquid is leaking out all over inside, figure once again hose on new one has split inside unit! That’s it I’m finished fixing this crap.Fool me once shame on you! Fool me twice shame on me! Fool me the third time NOPE back this goes!

J’aime le produit , présentement j’ai besoin de la pump pour ce modèle pièce # 34 puisque il a perte d’eau.Je me serre du produit pour appliquer le savon pour laver les autos.

The media could not be loaded. I sprayed 12 yards and never lost the charge, so I charged anyway. What's really nice is it's constant pressure with no pumping.