My4Sons M4 4.5 Gallon
A well-equipped 4.5-gallon sprayer with a big nozzle kit and an extendable stainless wand, for homeowners who spray many different products.
Amazon $249.99$249.99
4.5 gal80 PSIIncluded
3.1/5
A lithium 4.5-gallon sprayer from a long-time sprayer maker, for homeowners who want a long runtime without fuss.
- 4.5 galTank
- 62 PSISpray power
- 3.7 hrRuntime or airflow
- 11 V 7.8 Ah, includedPower source
Check price at Amazon$249.93
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Nearly 4 hours per charge from a lithium battery
- Big 4.5-gallon UV-resistant tank
- Two pressure settings for spot and broadcast spraying
Cons
- Only two pressure steps
- One-year parts warranty
- Nozzle count not published
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 | 417-Li |
|---|---|
| Spraying | |
| Tank | 4.5 gal |
| Max pressure | 62 PSI |
| Wand length | 28 in |
| Hose length | 55 in |
| Power | |
| Battery | 11 V 7.8 Ah, included |
| Runtime per charge | 3.7 hours |
| Features | |
| Adjustable pressure | Yes |
| Metal wand | No |
| Agitator | No |
| Gauge or control panel | No |
| Build | |
| Warranty | 1 year |
Alternatives in this type
Makita XSU02Z 4 Gallon
#10 in 4 gallons and upFull review
A 4-gallon bare tool for Makita 18V LXT owners who want a long-running sprayer on batteries they already have.
Amazon $384$384
4 gal73 PSISold separately
Chapin 63924 24V
#12 in 4 gallons and upFull review
A simple 4-gallon battery sprayer, made in the USA, for lawn weed and fertilizer jobs that need steady, moderate pressure.
Amazon $239$239
4 gal60 PSIIncluded
Compare
Compare the Solo 417-Li with any other battery backpack sprayer →
More from Solo: every Solo product ranked.