4.76 Gallon Auto Mixing Battery Powered Backpack Sprayer

The LEAFBATH 4.76 Gallon Battery Powered Backpack Sprayer is designed for homeowners and landscapers who want to cover large areas without stopping to pump by hand. Powered by two 21V 4.0Ah lithium battery packs, it provides up to 6-8 hours of continuous runtime per charge. The quick-swap battery compartment sits on the outside of the unit, letting you change batteries in seconds to keep your lawn, garden, or commercial landscaping projects moving forward without downtime.

A standout feature is the built-in automatic stirring system, which operates with a simple manual switch. Turning it on keeps fertilizers, herbicides, and pesticides uniformly mixed inside the 4.76-gallon tank, eliminating the need to physically shake the unit while you walk. The motor provides adjustable pressure from 0 to 120 PSI, operated by a simple knob, so you can switch from gentle plant misting to a high-pressure outdoor cleaning jet. The handle also features built-in flow adjustment for direct control during application.

For versatility across different jobs, the sprayer package includes eight distinct nozzles: shower, F-type double, windproof, F-type triple, stream, cone, copper, and adjustable mist. You also get two wand choices, including one durable metal wand and one lightweight plastic wand. An internal filter helps catch debris to prevent tip clogs, and the IPX4 waterproof rating safeguards the housing from outdoor weather conditions.

Keep in mind that a full 4.76-gallon tank will add considerable weight to your back, requiring good physical stamina for extended sessions. Upkeep is also essential; using acidic, alkaline, or sediment-heavy liquids requires prompt post-use cleaning to prevent clogs, corrosion, or early wear on the internal components.

Verdict: The LEAFBATH backpack sprayer is an excellent pick for property owners and landscapers who manage extensive outdoor areas. Its dual-battery power, hands-free mixing, and comprehensive nozzle kit make it a dependable workhorse for diverse spraying tasks.

• Tank Capacity: 4.76 gallons
• Battery Power: 2x 21V 4.0Ah lithium-ion packs
• Run Time: Up to 6-8 hours per charge
• Operating Pressure: 0-120 PSI (adjustable)
• Water Resistance: IPX4 rated
• Included Nozzles: 8 (shower, F-type double, windproof, F-type triple, stream, cone, copper, adjustable mist)
• Included Wands: 2 (1 metal, 1 plastic)

A great fit if you:

• Manage large lawns, extensive garden beds, or commercial grounds that take hours to spray
• Dislike manually pumping or shaking a sprayer tank while applying fertilizers and herbicides
• Need flexible pressure settings for both delicate misting and long-distance jet tasks
• Want a comprehensive kit with multiple wand materials and specialized nozzles ready to use

Consider something else if you:

• Prefer a smaller, lighter handheld tank for quick indoor or patio plant care
• Cannot comfortably carry around 4.76 gallons of liquid on your back

How long does the battery last on a single charge?
The sprayer runs for up to 6-8 hours of continuous use per charge, and it comes with two 21V 4.0Ah battery packs that can be quickly swapped.

How does the automatic mixing feature work?
It uses a built-in automatic stirring system with a manual on/off switch to keep liquids and sediments blended without having to shake the tank.

What nozzles are included in the package?
It comes with eight nozzles: shower, F-type double, windproof, F-type triple, stream, cone, copper, and adjustable mist.

Can I use acidic or sediment-heavy chemicals in this sprayer?
Yes, but you should clean the sprayer promptly after working with acidic, alkaline, or sediment-containing liquids to prevent clogging and corrosion.