Gentoo Battery Sprayer – GEN2.0

(10 customer reviews)



Need a lightweight, portable sprayer for disinfectants, pre-sprays, deodorants, and more? StainOut Systems’ Gentoo 2.5 Gallon Cordless Sprayer has you covered

Look at these other benefits:

  • Charges up to 4x faster
  • Holds charge longer
  • Constant Power
  • Lighter Weight
  • Longer Life Cycle



Gentoo Battery Sprayer

The Gentoo Battery Sprayer or as we have affectionally started to call it, the GEN2.0. is all new.  It has a more powerful 90 psi pump with chemical resistant viton seals and pressure switch included. The Lithium Ion battery charges fast and stays charged for hours. UH OH!!! Need to charge on the road?  No problem, this sprayer comes standard with a car charger. Change chemicals quick –  the GEN2.0 has quick connects built in that allow for bottle swapping in just seconds. 2.5 Gallon Cordless Sprayer is light weight and portable. Only 8 lbs! It’s perfect for a wide range of uses.

Pre Spray carpets



Plant food


Portable. Perfect for commercial and home use. Great for gardens and around the house.

Want to use more then 1 chemical?  The tank easily lifts off of unit for quick bottle change.

Can also be charged on the road.  Ready to go, when you are.  See for yourself why this is the best valued sprayer on the market!

PART# 71-202

Look at these other benefits:

  • Charges up to 4x faster
  • Holds charge longer
  • Constant Power
  • Lighter Weight
  • Longer Life Cycle


What is the pump seal made out of?
The material is Viton, which is very chemical resistant.  To ensure the pump last as long as possible, always rinse after using a low or high PH product.

How often should I charge?
Charge the Gentoo nightly or as needed.

How do I know if it’s charging?
The indicator light will turn red while charging. Once charged it will turn green.

Can I charge this outside of the US?
Yes, we use a universal charger. Use your own plug to attach to any outlet. 100 volt – 240 volt       



Additional information

Weight 14 lbs
Dimensions 12 × 7 × 29 in

90 PSI


2.5 gallons

Battery Lithium Ion

5200 M.A.H. 11.6 volt

Battery Life

All day battery life

Operating Current

2.1 amps


• 18" lance
• 48" hose

Product Weight

8.3 Lbs.

Technical drawing

Technical Drawing


Replacement parts for 71-202 GEN2.0


Changing switch on Gentoo Sprayer

Gentoo (Wiring Schematic)

10 reviews for Gentoo Battery Sprayer – GEN2.0

  1. Patrick Feak

    Top Notch Sprayer. Fantastic. Saves so much time. Everyone needs this sprayer

  2. Rodney R Tuff carpet cleaning

    Its the best sprayer for spotting urine, or pre spraying furniture upholstery, tile and grout. I love it and use it on every job. Yours is the best for pretreating. Five stars. Being able to charge it in the van between jobs is a definite plus. Its super lightweight. We love it. its the best on the market.

  3. Dwight S Fresh Start Carpet Cleaning

    Best cordless sprayer I’ve ever had. I use it 5 days a week, and I mean a lot! The battery holds a long charge. I recharge it about every 3 days of heavy use. Ive had it for around 10 months using it daily and never had it break down. It is truly a great sprayer hands-down, in the real world

  4. Ludo C. Monster Chem

    Sprayers worked amazing at Legoland! We did 250 rooms, lobby, and hallways. Used them today on a full charge and never needed to charge it! I think 3-4 hours straight and still going. Love the battery on this thing!

  5. Peter Delapuente

    LOVE my Gentoo 2.5 electric sprayer. Its so convenient, owned for about 3 months now with NO problems whatsoever! Great Product! Great battery life! Great add on to our carpet cleaning business! Faster dry times as well because your not over wetting carpets… ALSO save the extra hours that is put on your machine from Asian a Truckmounted chemical sprayer…Time is money and this Gentoo saves BOTH!

    Let a couple of other carpet cleaning companies use it for a day and they also purchased them… I know its hard to make a change from what your used too, But this Gentoo WILL save you money!

  6. Ron R.

    I love this sprayer. Works great

  7. Matthew Premier Carpet Care

    I have tried every battery sprayer I could get my hands on. The Gentoo is by far the best. I bought a 2nd one immediately and threw all the others in the trash.

  8. Charles

    Great addition to our arsenal.

  9. Robert

    Best sprayer I have used!

  10. Matt H

    I love my sprayer. I use it everyday.

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