I run a commercial spray business and can't recommend these highly enough.

https://my4sons.com

I change out the spray gun to a Teejet setup, but that is the only mod I do.

I'll get 6 acres out of a single battery charge.

Replacement pumps are $17 and batteries $12 if anything breaks fyi (nothing has).

If out of your budget, look at the Stihl branded sprayer with the brass pump.

Screw you! I'm voting for Trump again!

Ecc 10:2
The heart of the wise inclines to the right, but that of a fool to the 24HCF.