Best Field King Promax Sprayer 18v Battery Replacement in 2025
Updated on June 2025
#1
Recommended
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- 4-gallon capacity with adjustable high/low flow for versatile use
- Padded shoulder harness and waist belt designed for comfort during extended use
- Sealed battery compartment and protective shroud for weather resistance
- 50-inch reinforced nylon hose reduces kinking during operation
- Includes AC charger and 2.0Ah lithium-ion battery compatible with most Craftsman models
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- 4-gallon capacity with adjustable high/low flow for versatile use
- Padded shoulder harness and waist belt designed for comfort during extended use
- Sealed battery compartment and protective shroud for weather resistance
- 50-inch reinforced nylon hose reduces kinking during operation
- Includes AC charger and 2.0Ah lithium-ion battery compatible with most Craftsman models
#2
Value for Money
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- Internal No Leak Pump design prevents chemical drips for enhanced safety.
- Durable 21-inch stainless steel wand featuring high-quality Viton seals for superior chemical resistance.
- Lockable shut-off with brass components and integrated in-line filter for increased reliability.
- Tool-free access for quick seal changes within minutes.
- Includes six versatile nozzles: adjustable brass, high volume wide fan (brown), low volume wide fan (red), low volume narrow fan (yellow), jet stream (orange), and foaming (black); compatible with TeeJet nozzles.
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- Internal No Leak Pump design prevents chemical drips for enhanced safety.
- Durable 21-inch stainless steel wand featuring high-quality Viton seals for superior chemical resistance.
- Lockable shut-off with brass components and integrated in-line filter for increased reliability.
- Tool-free access for quick seal changes within minutes.
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#3
17% Off
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- High-pressure backpack sprayer enhances efficiency with battery-powered convenience. Designed for use with Makita 18V batteries for easy battery swapping and prolonged operation, it offers 3-4 times the efficiency of traditional sprayers.
- Powered by a 2.6Ah lithium battery, this sprayer provides up to 2 hours of continuous use. It features a quick 3-hour charge time, a digital voltage display for battery monitoring, and automatic shut-off for battery protection.
- Delivers up to 100 PSI, suitable for various tasks like gardening and cleaning. Equipped with a stainless steel telescopic spray gun, adjustable pressure, and a spray range of over 25 feet, plus a large tank for extensive coverage.
- Ergonomically designed with padded shoulder straps for comfort. The semi-transparent tank and wide-mouth lid allow easy liquid level monitoring and hassle-free filling. A user-friendly trigger and additional storage for nozzles enhance usability.
- Durable, all-weather performance with a high-quality lithium battery. Comes with 5 nozzles for versatile applications and backed by a one-year warranty with round-the-clock support.
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- High-pressure backpack sprayer enhances efficiency with battery-powered convenience. Designed for use with Makita 18V batteries for easy battery swapping and prolonged operation, it offers 3-4 times the efficiency of traditional sprayers.
- Powered by a 2.6Ah lithium battery, this sprayer provides up to 2 hours of continuous use. It features a quick 3-hour charge time, a digital voltage display for battery monitoring, and automatic shut-off for battery protection.
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#4
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- Durable brass construction with an adjustable nozzle for long-lasting use.
- 12V Lithium-ion battery powers up to 18 tanks per charge for extended performance.
- High-grade Viton seals ensure reliability and protect against tough conditions.
- Designed for quick and efficient landscaping tasks with ease of use.
- Lightweight at 6.5 lbs, making it highly portable for various locations.
- Not suitable for use with saltwater or vinegar.
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- Durable brass construction with an adjustable nozzle for long-lasting use.
- 12V Lithium-ion battery powers up to 18 tanks per charge for extended performance.
- High-grade Viton seals ensure reliability and protect against tough conditions.
- Designed for quick and efficient landscaping tasks with ease of use.
- Lightweight at 6.5 lbs, making it highly portable for various locations.
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#5
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- Cordless pump designed for efficiency
- 2-gallon removable tank with measuring cup
- Usable with one or two hands
- Sprays up to 20 tanks with compatible 18V battery
- Adjustable nozzle for customized applications
- Compatible with RYOBI ONE+ System tools
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- Cordless pump designed for efficiency
- 2-gallon removable tank with measuring cup
- Usable with one or two hands
- Sprays up to 20 tanks with compatible 18V battery
- Adjustable nozzle for customized applications
- Compatible with RYOBI ONE+ System tools
#6
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- High pressure external style piston pump
- Durable, 21 inch poly wand with the highest quality Viton seals for chemical resistance.
- Premium, lockable shut off with brass components and an in-line filter.
- Built-in carry handle with wand storage and a harness with adjustable padded straps, waist belt and chest cinch strap.
- 4 nozzles included: brass adjustable, 2 flat fans, and foaming nozzle. Also accepts TeeJet nozzles.
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- High pressure external style piston pump
- Durable, 21 inch poly wand with the highest quality Viton seals for chemical resistance.
- Premium, lockable shut off with brass components and an in-line filter.
- Built-in carry handle with wand storage and a harness with adjustable padded straps, waist belt and chest cinch strap.
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#7
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- Battery powered garden sprayer compatible with Milwaukee 18v battery, includes 1 x 18v 2.0Ah battery and fast charger.
- Self-priming water pump with one-button operation for hands-free use; ergonomic handle and adjustable strap reduce fatigue.
- Fast 60-minute charging time for the 18v 2.0Ah battery, providing up to 5 hours of continuous use for optimal performance.
- Water tank features capacity scale and measuring cup, with a reinforced PVC hose and extension metal wand for hard-to-reach areas.
- Durable 1-gallon tank minimizes refills, with adjustable nozzle delivering 0.6 L/min flow rate for efficient watering and gardening.
- Versatile electric sprayer suitable for watering plants, misting, weeding, humidifying air, and cleaning surfaces like driveways and windows.
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- Battery powered garden sprayer compatible with Milwaukee 18v battery, includes 1 x 18v 2.0Ah battery and fast charger.
- Self-priming water pump with one-button operation for hands-free use; ergonomic handle and adjustable strap reduce fatigue.
- Fast 60-minute charging time for the 18v 2.0Ah battery, providing up to 5 hours of continuous use for optimal performance.
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