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Q: How long does the battery last on a full charge?
A: Runtime depends on pressure setting and battery capacity, but most 21V lithium-ion cordless washers in this class run 30–40 minutes of continuous spray on a full charge — enough for a car wash or a round of patio furniture.
Q: How long does it take to charge?
A: Typically 2–4 hours for a full charge, depending on the charger included. A spare battery is worth it if you're doing multiple jobs back to back.
Q: Where does the water come from — do I need a hose hookup?
A: No hose bib needed. It draws water through the suction hose from any open container — a bucket, rain barrel, pond, or even a pool — making it usable anywhere, not just near a spigot.
Q: What's the water pressure like compared to a corded washer?
A: Cordless units in this category generally run lower PSI than plug-in pressure washers (often in the 300–600 PSI range vs. 1,500+ for corded models), so they're better suited to light cleaning — cars, bikes, outdoor furniture, siding — rather than stripping paint or deep-cleaning concrete.
Q: Is it safe to use on car paint?
A: Yes, at this pressure range it's gentle enough for automotive paint, especially with the fan nozzle setting rather than a pinpoint jet.
Q: What comes in the case?
A: Typically the washer body, battery, charger, suction hose, and interchangeable nozzle tips — check your specific case's compartment layout, since kits vary.
Q: Can I use soap or cleaning solution with it?
A: Many models support drawing a soap/water mix through the suction hose, but check your specific unit — some require a dedicated foam cannon attachment rather than straight suction.