PetraTools HD4000
A 4-gallon sprayer with battery and charger that runs all day on a charge, for homeowners and small crews spraying large lawns or acreage.
Amazon $199.99$199.99
4 gal90 PSIIncluded
3.7/5
The M4 with a built-in agitator, for anyone spraying powders or mixes that settle in the tank.
- 4 galTank
- 80 PSISpray power
- 6 hrRuntime or airflow
- 12 V 8 Ah, includedPower source
Check price at Amazon$299.99
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Built-in agitator keeps wettable powders and mixes from settling
- Runs 6 hours or more on a charge
- Nine nozzles and an extendable stainless wand
Cons
- Lead-acid battery is heavy
- Listing publishes no warranty
The My4Sons M4 family
Every My4Sons M4 model we rank, smallest first. Ratings compare each against its own type.
| Model | Tank | Rating | Price |
|---|---|---|---|
| My4Sons M4 Agitator (this one) | 4 gal | 3.7/5 | $299.99 |
| My4Sons M4 4.5 Gallon | 4.5 gal | 3.1/5 | $249.99 |
How it scores
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.
Specifications
| Model number | M4 Agitator |
|---|---|
| Spraying | |
| Tank | 4 gal |
| Max pressure | 80 PSI |
| Nozzles included | 9 |
| Wand length | 48 in |
| Hose length | 60 in |
| Power | |
| Battery | 12 V 8 Ah, included |
| Runtime per charge | 6 hours |
| Gallons per charge | 200 gal |
| Tanks per charge | 50 |
| Features | |
| Adjustable pressure | Yes |
| Metal wand | Yes |
| Agitator | Yes |
| Gauge or control panel | No |
Alternatives in this type
Greenworks 80V 4 Gallon
A low-priced 4-gallon kit with a long runtime, for owners of Greenworks 80V tools.
Amazon $189.89$189.89
4 gal70 PSIIncluded
$249.99
4 gal70 PSIIncluded
Compare
Compare the My4Sons M4 Agitator with any other battery backpack sprayer →
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