HIFAY Rechargeable Electric Sprayer 4L (1 Gal) Green — Cordless, Waterproof with 304 Stainless Steel Telescopic Wand

The HIFAY ES4-PRO is a cordless, rechargeable 4L (1 gallon) electric sprayer designed for hands-free watering, misting, disinfection, and light spraying tasks.

Compact yet powerful, the ES4-PRO combines a 4000mAh battery with an extendable 304 stainless steel wand and adjustable spray tips so you can move from a focused stream to a fine mist quickly. The latest model fixes earlier button reliability issues and adds a waterproof design so occasional rain or damp conditions won’t stop your work. Built from durable HDPE and non-toxic materials, the transparent tank makes monitoring fluid levels simple while the ergonomic handle keeps operation comfortable during longer jobs.

How long will the battery last between charges?

With its built-in 4000mAh lithium battery, the ES4-PRO provides several hours of continuous spray on a full charge. Charging uses the included USB-C cable (charger not included), and the indicator light turns from red to blue when charging is complete. Avoid using the unit while charging for safety and battery health.

• Battery capacity: 4000mAh lithium cell
• Typical continuous run time: about 4–5 hours
• Charger: USB-C cable included, 5V/1A recommended (adapter sold separately)
• Charging indicator: red while charging, blue when full

What spray patterns and reach does the sprayer offer?

The ES4-PRO features a retractable stainless steel wand and rotatable nozzle tips for a wide range of spray patterns from a direct stream to a fine mist. The wand extends to reach high or awkward spots, helping you treat plants, clean surfaces, or humidify rooms without constant bending or ladder use. Nozzle adjustments are simple and reliable for precise application.

• Retractable 304 stainless steel wand extends to 28 inches
• Rotatable tips provide stream-to-mist control
• Leak-resistant design to prevent messy drips
• Suitable for indoor and outdoor use

What liquids can I safely use in this sprayer and how to clean it?

The tank is compatible with water and many common garden liquids such as mild fertilizers, insecticides, disinfectants, and alcohol-based cleaners, but avoid highly corrosive or particulate-laden solutions. After using anything other than plain water, flush the tank and nozzle thoroughly with clean water for at least 20 seconds to remove residue. Regular cleaning preserves seals and prevents clogging of the nozzle system.

• Tank material: acid- and alkali-resistant HDPE, non-toxic
• Cleaning: flush with water after use, especially after chemicals
• Storage tip: recharge battery every two months during long storage
• Not for use with heavy slurries or large solids

Has the model’s button issue been addressed and is it weather resistant?

Yes — the ES4-PRO corrects prior button responsiveness problems and introduces a waterproof design to better withstand wet conditions. If you have an older unit with sticky or unresponsive buttons, HIFAY provides clear instructions for a manual fix; the new model incorporates upgrades that eliminate the need for that workaround. Customer support is available should you encounter any operational concerns.

• Updated button design for reliable one-button operation
• Improved waterproofing suitable for light rain or damp environments
• HIFAY support: responsive customer assistance within 24 hours

Who this is for: the HIFAY ES4-PRO is built for home gardeners, plant enthusiasts, and light commercial users who need a portable, battery-powered sprayer for watering, misting, sanitizing, or light pesticide work. It’s also useful for household cleaning tasks, pet cooling, and humidifying indoor plants—anyone who wants a leak-resistant, ergonomic tool that reaches farther and reduces hand-pump fatigue.