Eureka NEC440BK
By Eureka · Cordless Stick Vacuums · Cleaning & Smart Home
- 350W BLDC motor
- 25.8kPa suction
- Up to 60 min runtime
- 25.9V detachable battery
- H13 HEPA filter
Lowest price seen
~$179.99 (approx.)
from $179.99 at Amazon
- Amazon ~$179.99 (approx.)View at Amazon
- EurekaView at Eureka
- NeweggView at Newegg
- eBay (used) eBay: used, open-box, refurbishedView at eBay (used)
- eBayView at eBay
Prices are snapshots. Check the current price with the store.
Summary
A bagless 25.9-volt cordless stick vacuum that senses dust and floor type to adjust its suction, built for hard floors, rugs, daily pet hair and quick cleanups. Check spare-battery supply before you buy: Eureka’s own replacement is sold out and the original assembly is listed as no longer available.
Strengths
- CNET’s lab measured 97.53% sand pickup on hard floor, 98.53% on low pile and 92.16% on midpile.
- Sense+React adjusts suction and roller speed to dust load and floor type, with a clear battery-percentage screen.
- The swivel head and front brush reach edges and corners, and the handheld mode handles stairs and sofa cushions.
- The battery detaches and the genuine parts catalog covers filters, brush and floorhead when stock exists.
- Filters and cyclone wash in cold water; there are no bags, pads or subscriptions to buy.
Weaknesses
- Runtime under load falls well short of the low-mode claim: Tom’s Guide measured about 15 min high and 30 min or less in Auto.
- On some short-pile rugs the roller glides rather than combs, and a BISSELL brush engaged carpet more effectively in the same comparison.
- It cannot self-stand, the handheld is top-heavy, and the wall mount has nowhere to store attachments.
- A blocked filter, wand or brush cuts suction or stops the vacuum, and an overheating shutdown needs a 30-minute wait.
- The replacement battery is sold out at Eureka’s own store and the original assembly is listed as no longer available by the parts distributor.
Verified specifications
| Motor | 350 W rated, 120 air watts max, 25.8 kPa maximum static vacuum (Eureka figures). |
|---|---|
| Battery | 25.9 V removable pack, seven 2,500-mAh lithium cells, type BP25925D. |
| Runtime, manufacturer | 15 min high, about 30 min medium, 60 min low; Auto varies with dust and floor load. |
| Runtime, independent | Tom’s Guide measured roughly 15 min high and 30 min or less in Auto; CNET observed 33 and 48.6 min in separate tests. |
| Recharge | 3–5 h on the product page, 4–6 h in the manual; charger MC2805A, 25–29 V, 500 mA. |
| Dustbin | 0.5 L with button-operated bottom emptying and a removable cyclone; not dishwasher-safe. |
| Filtration | HEPA complete-seal system; Eureka claims 99.95% of particles from 0.3 microns in its lab. |
| Weight | 2.9 kg (6.4 lb) as a stick, 1.7 kg handheld. |
| Dimensions | 1260 × 255 × 257 mm, about 49.6 × 10 × 10.1 in. |
| Noise | 82 dB(A) claimed, without a stated measurement distance or mode. |
| Display | LED screen with battery percentage and dust, boost and maintenance icons; front LED illumination. |
| Brushroll | EBT19-G anti-tangle, removable for cleaning. |
| Warranty | two years for the vacuum, one year for the battery module. |
| In the box | hand unit, floorhead, tube, battery, charger, crevice tool, upholstery brush, wall hanger and hardware. |
Full research notes and sources
Runtime and battery
The manufacturer’s numbers describe a best case: 15 min on high, 60 min on low, with Auto varying as dust and floor load change. Tom’s Guide measured roughly 15 min high and 30 min or less in Auto, while CNET’s separate tests saw 33 and 48.6 minutes under different workloads — not a controlled contradiction, a reminder that headline runtime is a low-mode figure. Charging takes 3–5 h on the product page and 4–6 h in the manual, and can run longer after hot use, so plan around an overnight charge.
The battery is a 25.9 V pack of seven 2,500-mAh cells (type BP25925D), a nominal 64.75 Wh. The manual says to use, charge and store it between 5°C and 40°C (41°F and 104°F), to recharge it every two months in long storage, and to avoid wet pickup.
The supply problem matters more than the specs. Eureka lists an NEC440BK replacement battery at $39.99, sold out, and inconsistently titles it a 50-minute pack. The parts distributor Midea/Encompass marks the original assembly 17475000026900 as no longer available. Ask Eureka to confirm BP25925D compatibility before trusting a cheaper pack, and never substitute a random USB charger — the included MC2805A is the reference.
Floors and carpet
CNET’s instrumented lab test is the strongest pickup evidence: 97.53% of sand on hard floor, 98.53% on low pile, 92.16% on midpile under its fixtures. Its reviewer also handled pet hair from three cats for months without observed roller tangling. Tom’s Guide praised the hard-floor cleaning, the nimble swivel head, the front brush placement for edge dirt and the legible display. The Gadgeteer’s 2025 reviewer cleaned dog and cat debris, small sand, beans and dust without a major pickup problem and liked the washable filters and serviceable floor roller, though the red scrubbing patch on the upholstery tool fell off and was sucked in on first use — a single report, not a measured failure rate.
Carpet is the weaker case. Tom’s Guide found the roller gliding over certain short-pile rugs rather than combing them, and the BISSELL PowerClean in the same comparison appeared to scrub them more effectively. CNET’s sand numbers show pickup, not the ability to lift embedded fur or nap, so treat low-pile rugs as fine and midpile as unproven.
Parts, running costs and warranty
There are no mandatory consumables: a healthy reusable filter set costs $0 a year, with no subscription. Filter washing is the real routine — rinse the post-motor HEPA with cold water, dry it fully, never run the vacuum with damp or missing filters. A blocked air path triggers a maintenance icon. Energy is trivial to illustrate: at one charge a week, an assumed $0.20 household price and 80% charging efficiency, the 64.75 Wh pack draws about 4.21 kWh a year, roughly $0.84. Those are assumptions, not a wattmeter test.
Optional replacement parts are where money can appear. An illustrative annual filter change is $12.95 for the dustcup filter plus $20.95 for the post-motor HEPA — $33.90, about $34.74 with energy — though it is not mandatory and neither part’s stock is confirmed. The dustcup filter listing showed $12.95 and out of stock; the HEPA at $20.95 is listed for NEC451BL, so confirm fit with the seller. The motorized floorhead assembly appeared at $80.95 in one distributor crawl without confirmed checkout. The battery is the expensive unknown: $39.99 and sold out at Eureka, original assembly no longer available. Without failure-rate data there is no defensible annual repair figure.
Warranty is two years for the vacuum and one year for the battery module, for defects in household use by the original purchaser from an authorized seller. Eureka chooses repair or replacement, may supply refurbished units, and is not obliged to refund the price. Filter and brush wear, abuse, wet use and unapproved repairs are excluded. You pay outbound shipping for a warranty evaluation; Eureka pays return shipping on qualifying repairs. The direct store adds 30-day returns and a seven-day price-match window.
Owner support experiences exist but are not model-specific: an April 2026 r/VacuumCleaners post described a delayed return label for a direct-store buyer of an unidentified Eureka, and a 2025 thread said support did not help diagnose a missing cup component. Neither confirms NEC440BK behavior.
Is it worth it?
Eureka’s own deals page advertised $109.99 in October 2026, reduced $70 from $179.99, while the product page showed $179.99; the spread may be session, campaign or cart dependent, and no completed checkout was observed. Reviews published in 2025 quote $179.99 as the normal price. The research’s editorial buy bands call $110 or less excellent for a manufacturer sale with return protection, $110–$130 good, and $130–$155 the point to compare the $139.95 Levoit LVAC-200 or cheaper BISSELL 4172 variants; above $175 the value is poor.
Two price traps: Walmart’s $158.93 ReactiSense listing is titled NEC451BL, a different model, and a closed September 2026 Hibid auction ended at $87.01 for an allegedly new unit sold as-is with local pickup and no warranty. Verify the exact model at checkout.
Alternatives from the same research: the Levoit LVAC-200 at $139.95 lists a $69.99 battery and $21.99 filter sets as in stock, the BISSELL PowerClean 4173 is $199.99 direct with a self-standing body, and Eureka’s own NEC410BK is $99.99 with a 200-W motor and no comparable sealed HEPA claim. If consistent parts supply matters more than CNET’s sand numbers, the Levoit is the comparison to make.
Which model this is
This page covers NEC440BK, the black Eureka ReactiSense 440 with the 350-W motor. Do not confuse it with the very similar NEC451BL or the NEC410BK, which uses a less powerful 200-W motor. Consumer Reports’ NEC440 entry explicitly extrapolates from NEC451BL tests rather than publishing NEC440-specific instrumented scores. The battery is type BP25925D, assembly 17475000026900.
Sources
Manufacturer:
- Eureka ReactiSense 440 product page
- Eureka NEC440 series user manual (PDF)
- Eureka deals catalog, October 2026
- Eureka NEC440BK replacement battery listing, sold out at $39.99
- Eureka ReactiClean and ReactiSense model comparison
- Eureka price-match policy
Independent reviews:
- CNET: best cordless vacuum tested — lab pickup and three-cat household
- CNET: exclusive lab testing, 33-minute Eureka runtime
- Tom’s Guide: hands-on NEC440 ReactiSense test, October 2025
- The Gadgeteer: ReactiSense 440 review with accessory issue
- Vacuum Chef: ReactiSense 440 review, manufacturer sample disclosed
- Consumer Reports: Eureka ReactiSense NEC440 entry
Owner reports:
- Eureka direct-store return-label delay, model not identified (r/VacuumCleaners)
- Eureka support did not diagnose a missing cup component, 2025 (r/VacuumCleaners)
- General Eureka supply-risk discussion (r/VacuumCleaners)
Parts and stores:
- Midea Encompass genuine NEC440BK parts catalog
- Encompass dustcup filter listing, $12.95 and out of stock
- Eureka/Encompass post-motor HEPA listing for NEC451BL, $20.95
- Encompass dust cup listing, no usable price
- Walmart ReactiSense listing, NEC451BL
- Hibid closed auction, as-is NEC440BK
- Levoit LVAC-200 product page
- BISSELL PowerClean 4173 product page


