If you own DEWALT 20V MAX tools, you have probably eyed the DCV517B: the bare tool looks cheap, the batteries are in your garage, and your car seats are full of crumbs. But it ships with no battery and no charger — and that one catch decides everything. Here is the honest answer: real specs, the battery math, and three alternatives.
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The short answer
Yes — if you already own two or more DEWALT 20V MAX batteries. You get a tough, powerful wet/dry hand vacuum for the bare-tool price, and one 5.0Ah battery cleans a whole car interior. No — if you own zero DEWALT batteries: a battery and charger cost as much as the vacuum itself.
Our pick: DEWALT 20V MAX Hand Vacuum DCV517B
#1 — Best for DEWALT owners
DEWALT 20V MAX Hand Vacuum DCV517B (bare tool)
Rating: 4.5/5 · from ~8,800 Amazon ratings
The DCV517B is DEWALT's 1/2-gallon cordless wet/dry hand vacuum. It runs on any DEWALT 20V MAX battery, traps fine dust with a washable HEPA filter, and switches between a front nozzle and an extendable rubber hose.
- 1/2-gallon tank with a heavy-duty latch — easy to empty and clean
- GORE HEPA wet/dry filter traps 99.97% of dust at 0.3 microns — washable
- Dual clean-up modes: front utility nozzle or extendable rubber hose
- Two power levels and about 39 CFM of airflow
- 3-year limited warranty and a rugged, drop-proof build
Pros: strong suction for a cordless hand vacuum; wet/dry pickup handles spilled drinks as well as crumbs; washable HEPA filter means no filters to buy; cordless freedom reaches every corner.
Cons: battery and charger sold separately — the "bare tool" price is not the full price; the 1/2-gallon tank fills fast; around 4.5 pounds with a battery, heavier than most car vacuums; no crevice tool or brush in the box.
Best for: drivers who already own DEWALT 20V MAX batteries and want one vacuum for car, garage, and house.
The battery math: the only decision that matters
It comes down to one question: how many DEWALT 20V MAX batteries do you own?
- Two or more batteries: buy the bare tool. One battery charges while the other cleans, and a 5.0Ah battery typically finishes a full car interior on one charge, per owner reports. This is where the DCV517B is the best-value cordless car vacuum you can buy.
- Exactly one battery: it still works — clean right after a charge, use low power for dust, save high power for mats and heavy dirt.
- Zero batteries: do not buy this vacuum. A battery and charger together cost roughly as much as the bare tool itself, so your real total is about double the listed price. A complete kit is cheaper.
Check battery size too: compact 2.0Ah batteries run it for much less time than a 4.0Ah or 5.0Ah pack. Two honest caveats: it is loud, around 80 decibels, and the box has no car-specific attachments. Airflow is around 39 CFM, stronger than most 12V car vacuums in our cordless vs corded guide.
How it actually cleans a car: a 5-step routine
- Mats first. Pull them out, shake them, then vacuum both sides with the front nozzle on high.
- Seats with the nozzle. Run the front nozzle across cushions and backrests in slow passes.
- Hose for the gaps. Push the hose between the seats, along the rails, and into the cupholders — where crumbs hide.
- Wet messes last. Spilled coffee or melted snow goes in the tank as easily as dry dirt — vacuum liquids slowly, then empty the tank.
- Empty and tap the filter every time. The tank fills fast. Pop the latch, dump it, and tap the HEPA filter clean — a clogged filter is the top reason owners report "weak suction."
Keep it on a garage shelf next to your charger, not in the car — a cordless vacuum with a dead battery is just a yellow box, and trunk heat harms lithium batteries.
Three alternatives if the DCV517B is not right for you
Alternative 1 — Bigger DEWALT sibling
DEWALT 20V MAX Cordless Wet/Dry Vacuum DCV581H
Rating: 4.4/5 · from ~8,700 Amazon ratings
The DCV581H is the DCV517B's bigger brother: a 2-gallon cordless wet/dry vacuum on the same 20V MAX batteries. One vacuum for car and garage, with far fewer trips to the bin — but bulkier inside a car.
- 2-gallon tank — four times the capacity of the DCV517B
- Same 20V MAX battery platform — your existing batteries fit
- Wet/dry pickup for spills and workshop messes alike
Pros: much larger tank; same battery ecosystem; stronger all-round workshop vacuum. Cons: heavier and bulkier inside a car; still a bare tool, so the battery math applies.
Best for: DEWALT owners who want one vacuum for the car and the garage.
Alternative 2 — Best if you own no DEWALT batteries
BLACK+DECKER Dustbuster AdvancedClean CHV1410L
Rating: top-rated by thousands of verified buyers
The Dustbuster is the classic answer for a reason: it is a complete kit. Battery, charger, and a crevice tool are all in the box, so the price you see is the price you pay. It is lighter than the DCV517B, with a washable filter and a flip-out crevice tool. Runtime is shorter — roughly 10 to 15 minutes — and suction is weaker, but for a weekly tidy it is enough.
- Complete kit — battery and charger included
- Flip-out crevice tool for seat gaps and tight corners
- Washable filter and a translucent bowl
Pros: everything included; lighter and easier to handle; crevice tool in the box. Cons: shorter runtime; weaker suction; small dust bowl needs frequent emptying.
Best for: beginners who want a simple, complete cordless car vacuum.
Alternative 3 — Best for pet hair
Shark UltraCyclone Pet Pro Plus CH951
Rating: top-rated by thousands of verified buyers
If the main thing in your car is pet hair, the Shark beats either DEWALT. Its motorized Pet Power Brush pulls embedded hair from fabric seats that a plain nozzle slides over, and its two dust cups keep suction strong as they fill. It is a complete cordless kit too — no batteries to buy — and our pet-owner pick in our best car vacuums roundup.
- Motorized Pet Power Brush for embedded hair
- Dual dust-cup design keeps suction strong as the cups fill
- Complete cordless kit — battery and charger included
Pros: the best pet-hair pickup of any handheld here; strong sustained suction; complete kit. Cons: shorter runtime than the DEWALT on a big battery; no wet pickup; pricier than the Dustbuster.
Best for: dog and cat owners whose car seats are mostly fur.
Side-by-side comparison
| Vacuum | Tank | Power source | Wet/dry | Best for |
|---|---|---|---|---|
| DEWALT DCV517B | 1/2 gallon | 20V MAX battery (not included) | Yes | DEWALT owners |
| DEWALT DCV581H | 2 gallons | 20V MAX battery (not included) | Yes | Car + garage |
| BLACK+DECKER Dustbuster CHV1410L | Small bowl | Built-in battery, charger included | Dry only | Simple complete kit |
| Shark UltraCyclone Pet Pro Plus CH951 | Dual cups | Built-in battery, charger included | Dry only | Pet hair |
Who should skip the DCV517B
Skip it if you own no DEWALT 20V MAX batteries — the real total cost makes it a poor first vacuum. Skip it if your car is regularly caked in mud or full of pet hair; the small tank will frustrate you, and a wet/dry shop vacuum or the Shark serves you better. Our wet/dry vacuums roundup covers the bigger options.
Verdict: worth it — but only on one condition
The DCV517B is a genuinely good car vacuum, not just a jobsite vacuum that fits in a car. Its suction beats most dedicated car vacuums, its washable HEPA filter costs nothing to maintain, and its wet/dry pickup handles spills dry-only vacuums cannot. The 4.5-star average across roughly 8,800 Amazon ratings backs that up.
But the verdict has a hard condition: it is worth it only if you already own DEWALT 20V MAX batteries. With batteries in hand, the bare tool is one of the best-value cordless car vacuums available. Without them, the Dustbuster or the Shark is the better first vacuum.
Frequently asked questions
Does the DEWALT DCV517B come with a battery?
No. The DCV517B is sold as a bare tool — battery and charger sold separately. The kit version, DCV517M1, includes one battery and a charger.
Can the DCV517B pick up wet messes in a car?
Yes, it is a wet/dry vacuum. It handles spilled drinks and melted snow — empty the tank after wet use and let the filter dry fully.
How long does a battery last in the DCV517B?
It depends on battery size. Owners report a 5.0Ah battery typically finishes a full car interior on one charge; smaller 2.0Ah batteries run for noticeably less time.
Is the HEPA filter washable?
Yes. Tap the dust off or rinse the filter with water, then let it dry completely before putting it back in the vacuum.
Is it better than a regular cordless car vacuum?
If you own DEWALT 20V MAX batteries, yes — stronger suction and tougher build for the bare-tool price. If you own none, a complete kit like the BLACK+DECKER Dustbuster is simpler and cheaper.
Sources: DEWALT DCV517B specifications and owner ratings via The Home Depot and Pro Tool Reviews.
