OVERALL
ALTERNATIVES
SPECS
VS AVERAGE
REVIEWS
Scored using Wet-Dry Vacuums Methodology v1.0
Wet-Dry Vacuums Methodology v1.0
Mathematical & Unbiased Scoring
Products in this category are evaluated mathematically under Frontumo Wet-Dry Vacuums Methodology v1.0 using verified laboratory benchmarks, technical specifications, and authentic consumer ratings with 0% commercial bias.
Explore Wet-Dry Vacuums Methodology v1.0

Kärcher WD 3 Battery Review | 43 Data compared

Avg. price:~£130Suction pressure:11 kPaCapacity:17 LPower:300 WNoise level:78 dBWeight:5.2 kg

Kärcher WD 3 Battery Review: Compare 43 technical specifications and user reviews to see how this product ranks in the Wet-Dry Vacuums category and whether it is worth buying.

6.1

Overall score

Score
6.1/ 10
✕
What it is
An overall evaluation of products in the Wet-Dry Vacuums category, based on technical analysis and user reviews.
When it matters
When you need a quick reference for identifying the best products in the Wet-Dry Vacuums category.
Score distribution
▼
<55-66-77-88-99-10
▼ Worse than 78% of models
Score components

80%

5.8

Technical score

20%

7.4

User score

▼Worse than 78% of wet-dry-vacuums
5.8

Technical score

Technical score
5.8/ 10
✕
What it is
An assessment of technical performance for products in the Wet-Dry Vacuums category across these key areas: Performance, Battery, Design & Mobility, Filter & Accessories.
When it matters
When you want to compare products in the Wet-Dry Vacuums category by technical performance, specifications, and available features.
Score distribution
▼
<55-66-77-88-99-10
▼ Worse than 79% of models
Score components

40%

3.9

Performance

22%

6.2

Design & Mobility

20%

6.0

Filter & Accessories

18%

9.2

Battery

▼Worse than 79% of wet-dry-vacuums
7.4

User score

User score
7.4/ 10
✕
What it is
A rating that combines user reviews with the total review volume for products in the Wet-Dry Vacuums category.
When it matters
When you want to know how products in the Wet-Dry Vacuums category perform in everyday use and how reliable owners find them over time.
Score distribution
▼
<55-66-77-88-99-10
▼ Worse than 90% of models
Score components

70%

7.7

User ratings

30%

6.6

Number of reviews

Based on 166 buyer reviews from online shops.
Read buyer reviews on Amazon →
How we calculate this
User ratings – average star rating across all shop listings, weighted by how many reviews each has, on a 1–10 scale.
Number of reviews – how many buyer reviews the product has, on a logarithmic scale; the 8% most-reviewed models in the category get 10.
▼Worse than 90% of wet-dry-vacuums
  • karcher-wd-3-battery
  • karcher-wd-3-battery
  • karcher-wd-3-battery
  • karcher-wd-3-battery
  • karcher-wd-3-battery
  • karcher-wd-3-battery
  • karcher-wd-3-battery
karcher-wd-3-battery
karcher-wd-3-battery
karcher-wd-3-battery
karcher-wd-3-battery
karcher-wd-3-battery
karcher-wd-3-battery
karcher-wd-3-battery

Best prices

*As an Amazon Associate, we earn from qualifying purchases.

Best rankings

Available: ranking among products currently available (including other versions of this product).All: ranking among all products in the database.
Loading category ranking...

Technical Specifications of wet-dry vacuum Kärcher WD 3 Battery

Technical score
Technical score
5.8/ 10
✕
What it is
An assessment of technical performance for products in the Wet-Dry Vacuums category across these key areas: Performance, Battery, Design & Mobility, Filter & Accessories.
When it matters
When you want to compare products in the Wet-Dry Vacuums category by technical performance, specifications, and available features.
Score distribution
▼
<55-66-77-88-99-10
▼ Worse than 79% of models
Score components:

40%

3.9

Performance

22%

6.2

Design & Mobility

20%

6.0

Filter & Accessories

18%

9.2

Battery

5.8
User score
User score
7.4/ 10
✕
What it is
A rating that combines user reviews with the total review volume for products in the Wet-Dry Vacuums category.
When it matters
When you want to know how products in the Wet-Dry Vacuums category perform in everyday use and how reliable owners find them over time.
Score distribution
▼
<55-66-77-88-99-10
▼ Worse than 90% of models
Score components

70%

7.7

User ratings

30%

6.6

Number of reviews

Based on 166 buyer reviews from online shops.
Read buyer reviews on Amazon →
How we calculate this
User ratings – average star rating across all shop listings, weighted by how many reviews each has, on a 1–10 scale.
Number of reviews – how many buyer reviews the product has, on a logarithmic scale; the 8% most-reviewed models in the category get 10.
7.4
Popularity
Popularity
6.6/ 10
✕
What it is
An indicator based on the number of reviews received by products in the Wet-Dry Vacuums category.
When it matters
When you prefer products in the Wet-Dry Vacuums category that have been chosen and reviewed by many other buyers.
Score distribution
▼
<55-66-77-88-99-10
▲ Better than 50% of models
Popularity:
Kärcher WD 3 Battery has a popularity score of 6.6 points, which is higher than 50% of products in this category.
6.6
Value for money
Value for money
7.2/ 10
✕
What it is
An indicator that combines the overall score of products in the Wet-Dry Vacuums category with their prices.
When it matters
When you are comparing products in the Wet-Dry Vacuums category and want a good balance between quality and price.
Score distribution
▼
<55-66-77-88-99-10
▼ Worse than 79% of models
Score components:

60%

6.1

Overall score

40%

9.8

Price

7.2
Power
300 W
Power
300 W
▼ Worse than 74% of models
Market range: <220 W – >1.5k W
This wet-dry vacuum has a power output of 300 W, which is lower than that of 74.1% of wet-dry vacuums and the same as that of 2.9% of wet-dry vacuums.
Variable power
no
Variable power
no
▼ Worse than 35% of models
This wet-dry vacuum does not have adjustable suction power. This feature is present on 35% of wet-dry vacuums.
Capacity
17 L
Capacity
17 L
▲ Better than 54% of models
Market range: <0.7 L – >30 L
This wet-dry vacuum has a tank capacity of 17 L, which is larger than that of 54% of wet-dry vacuums and the same as that of 0.5% of wet-dry vacuums.
Noise level
78 dB
Noise level
78 dB
▼ Worse than 54% of models
Market range: <70 dB – >80 dB
This wet-dry vacuum operates at a noise level of 78 dB, which is higher than that of 53.7% of wet-dry vacuums and the same as that of 20.5% of wet-dry vacuums.
Suction pressure
11 kPa
Suction pressure
11 kPa
▼ Worse than 92% of models
Market range: <11.5 kPa – >24 kPa
This wet-dry vacuum has a suction pressure of 11 kPa, which is lower than that of 91.7% of wet-dry vacuums and the same as that of 0.6% of wet-dry vacuums.
Show more
Cordless
yes
Cordless
yes
▲ Better than 71% of models
This wet-dry vacuum supports cordless operation. This feature is present on 29.6% of wet-dry vacuums.
Battery type
Li-ion
Battery runtime
?
Charging time
?
Battery voltage
36 V
Battery voltage
36 V
★ Better than 98% of models
Market range: <18 V – >25.9 V
This wet-dry vacuum has a battery voltage of 36 V, which is higher than that of 98.3% of wet-dry vacuums and the same as that of 1.7% of wet-dry vacuums.
Show more
Power cable length
N/A
Operating radius
N/A
Bagless
no
Bagless
no
▼ Worse than 67% of models
This wet-dry vacuum uses a dust bag. This feature is present on 66.5% of wet-dry vacuums.
Tank material
plastic
Tank material
plastic
▼ Worse than 42% of models
This wet-dry vacuum uses plastic for its tank, which is less durable than the tank materials used by 41.6% of wet-dry vacuums and comparable in durability to those used by 58.4% of them.
Power cable holder
no
Power cable holder
no
▼ Worse than 66% of models
This wet-dry vacuum does not have a holder for the power cord. This feature is present on 65.5% of wet-dry vacuums.
Show more
N. of filters
2
N. of filters
2
▲ Better than 25% of models
Market range: <1 – >3
This wet-dry vacuum has 2 filters, more than 24.8% of wet-dry vacuums and the same number as 56.4% of wet-dry vacuums.
HEPA filter
no
HEPA filter
no
▼ Worse than 42% of models
This wet-dry vacuum does not include a HEPA filter. This feature is present on 41.9% of wet-dry vacuums.
Washable filter
no
Washable filter
no
▼ Worse than 93% of models
This wet-dry vacuum does not include a washable filter. This feature is present on 92% of wet-dry vacuums.
Automatic filter cleaning
no
Automatic filter cleaning
no
▼ Worse than 9% of models
This wet-dry vacuum does not have automatic filter cleaning. This feature is present on 9.4% of wet-dry vacuums.
Flexible hose
yes
Flexible hose
yes
▲ Better than 27% of models
This wet-dry vacuum includes a flexible hose. This feature is present on 72.9% of wet-dry vacuums.
Show more

Kärcher WD 3 Battery vs the average wet-dry vacuum

246810TotalPerformanceBatteryDesign & MobilityFilter & Accessories
  • Cordless operation
    Cordless
    yes
    ▲ Better than 71% of models
    This wet-dry vacuum supports cordless operation; the average wet-dry vacuum requires a power cord.
  • Removable battery
    Removable battery
    yes
    ★ Better than 95% of models
    This wet-dry vacuum has a removable battery; the average wet-dry vacuum does not have a removable battery.
  • 14.4 V more battery voltage
    Battery voltage
    36 V
    ★ Better than 98% of models
    Market range: <18 V – >25.9 V
    This wet-dry vacuum has a battery voltage of 36 V; the average wet-dry vacuum has a battery voltage of 21.6 V.
    36 V vs 21.6 V
  • Battery level indicator
    Battery level indicator
    yes
    ▲ Better than 72% of models
    This wet-dry vacuum has a battery-level indicator; the average wet-dry vacuum does not have a battery-level indicator.
  • 10% less external volume
    Volume
    66,355.8 cm³
    ▲ Better than 68% of models
    Market range: <41.2k cm³ – >109k cm³
    This wet-dry vacuum has a volume of 66355.8 cm³; the average wet-dry vacuum has a volume of 73724.2 cm³.
    66,355.8 cm³ vs 73,724.2 cm³
  • 8.8% lighter
    Weight
    5.2 kg
    ▲ Better than 57% of models
    Market range: <3.79 kg – >9.1 kg
    40% lighter: this wet-dry vacuum is lighter than the average wet-dry vacuum (5.2 kg vs 5.7 kg).
    5.2 kg vs 5.7 kg
  • 2 L more tank capacity
    Capacity
    17 L
    ▲ Better than 54% of models
    Market range: <0.7 L – >30 L
    This wet-dry vacuum has a tank capacity of 17 L; the average wet-dry vacuum has a tank capacity of 15 L.
    17 L vs 15 L
  • 2 L more tank capacity
    Capacity
    17 L
    ▲ Better than 54% of models
    Market range: <0.7 L – >30 L
    This wet-dry vacuum has a tank capacity of 17 L; the average wet-dry vacuum has a tank capacity of 15 L.
    17 L vs 15 L
  • Cordless operation
    Cordless
    yes
    ▲ Better than 71% of models
    This wet-dry vacuum supports cordless operation; the average wet-dry vacuum requires a power cord.
  • Removable battery
    Removable battery
    yes
    ★ Better than 95% of models
    This wet-dry vacuum has a removable battery; the average wet-dry vacuum does not have a removable battery.
  • 14.4 V more battery voltage
    Battery voltage
    36 V
    ★ Better than 98% of models
    Market range: <18 V – >25.9 V
    This wet-dry vacuum has a battery voltage of 36 V; the average wet-dry vacuum has a battery voltage of 21.6 V.
    36 V vs 21.6 V
  • Battery level indicator
    Battery level indicator
    yes
    ▲ Better than 72% of models
    This wet-dry vacuum has a battery-level indicator; the average wet-dry vacuum does not have a battery-level indicator.
  • 10% less external volume
    Volume
    66,355.8 cm³
    ▲ Better than 68% of models
    Market range: <41.2k cm³ – >109k cm³
    This wet-dry vacuum has a volume of 66355.8 cm³; the average wet-dry vacuum has a volume of 73724.2 cm³.
    66,355.8 cm³ vs 73,724.2 cm³
  • 8.8% lighter
    Weight
    5.2 kg
    ▲ Better than 57% of models
    Market range: <3.79 kg – >9.1 kg
    40% lighter: this wet-dry vacuum is lighter than the average wet-dry vacuum (5.2 kg vs 5.7 kg).
    5.2 kg vs 5.7 kg
  • 7 kPa less suction pressure
    Suction pressure
    11 kPa
    ▼ Worse than 92% of models
    Market range: <11.5 kPa – >24 kPa
    This wet-dry vacuum has a suction pressure of 11 kPa; the average wet-dry vacuum has a suction pressure of 18 kPa.
    11 kPa vs 18 kPa
  • No automatic full-tank shut-off
    Automatic shut-off when full
    no
    ▼ Worse than 66% of models
    This wet-dry vacuum does not have automatic shut-off when the tank is full; the average wet-dry vacuum has automatic shut-off when the tank is full.
  • 850 W less motor power
    Power
    300 W
    ▼ Worse than 74% of models
    Market range: <220 W – >1.5k W
    This wet-dry vacuum has a power output of 300 W; the average wet-dry vacuum has a power output of 1150 W.
    300 W vs 1,150 W
  • Requires collection bags
    Bagless
    no
    ▼ Worse than 67% of models
    This wet-dry vacuum uses a dust bag; the average wet-dry vacuum is bagless.
  • Non-washable filter
    Washable filter
    no
    ▼ Worse than 93% of models
    This wet-dry vacuum does not include a washable filter; the average wet-dry vacuum includes a washable filter.
  • No cable holder
    Power cable holder
    no
    ▼ Worse than 66% of models
    This wet-dry vacuum does not have a holder for the power cord; the average wet-dry vacuum has a holder for the power cord.
  • 2 dB more operating noise
    Noise level
    78 dB
    ▼ Worse than 54% of models
    Market range: <70 dB – >80 dB
    This wet-dry vacuum operates at a noise level of 78 dB; the average wet-dry vacuum operates at a noise level of 76 dB.
    78 dB vs 76 dB
  • 0.13 m less hose length
    Suction hose length
    2 m
    ▼ Worse than 58% of models
    Market range: <1.5 m – >3 m
    This wet-dry vacuum has a suction hose length of 2 m; the average wet-dry vacuum has a suction hose length of 2.134 m.
    2 m vs 2.134 m
  • 3.5% worse value for money
    Kärcher WD 3 Battery offers worse value for money than the average wet-dry vacuum (7.22 vs 7.5).
    7.22 vs 7.48
  • 8.5% lower user score
    User score
    7.4/ 10
    ✕
    What it is
    A rating that combines user reviews with the total review volume for products in the Wet-Dry Vacuums category.
    When it matters
    When you want to know how products in the Wet-Dry Vacuums category perform in everyday use and how reliable owners find them over time.
    Score distribution
    ▼▼
    <55-66-77-88-99-10
    Kärcher WD 3 Battery
    the average wet-dry vacuum
    Kärcher WD 3 Battery has a lower user score than the average wet-dry vacuum (7.37 vs 8.000).
    7.37 vs 8
  • 7 kPa less suction pressure
    Suction pressure
    11 kPa
    ▼ Worse than 92% of models
    Market range: <11.5 kPa – >24 kPa
    This wet-dry vacuum has a suction pressure of 11 kPa; the average wet-dry vacuum has a suction pressure of 18 kPa.
    11 kPa vs 18 kPa
  • 850 W less motor power
    Power
    300 W
    ▼ Worse than 74% of models
    Market range: <220 W – >1.5k W
    This wet-dry vacuum has a power output of 300 W; the average wet-dry vacuum has a power output of 1150 W.
    300 W vs 1,150 W
  • No automatic full-tank shut-off
    Automatic shut-off when full
    no
    ▼ Worse than 66% of models
    This wet-dry vacuum does not have automatic shut-off when the tank is full; the average wet-dry vacuum has automatic shut-off when the tank is full.
  • 2 dB more operating noise
    Noise level
    78 dB
    ▼ Worse than 54% of models
    Market range: <70 dB – >80 dB
    This wet-dry vacuum operates at a noise level of 78 dB; the average wet-dry vacuum operates at a noise level of 76 dB.
    78 dB vs 76 dB
  • 2.5 L/s less airflow
    Airflow
    40 L/s
    ▼ Worse than 53% of models
    Market range: <25 L/s – >70 L/s
    This wet-dry vacuum delivers an airflow of 40 L/s; the average wet-dry vacuum delivers an airflow of 42.5 L/s.
    40 L/s vs 42.5 L/s
  • Requires collection bags
    Bagless
    no
    ▼ Worse than 67% of models
    This wet-dry vacuum uses a dust bag; the average wet-dry vacuum is bagless.
  • No cable holder
    Power cable holder
    no
    ▼ Worse than 66% of models
    This wet-dry vacuum does not have a holder for the power cord; the average wet-dry vacuum has a holder for the power cord.
  • 0.13 m less hose length
    Suction hose length
    2 m
    ▼ Worse than 58% of models
    Market range: <1.5 m – >3 m
    This wet-dry vacuum has a suction hose length of 2 m; the average wet-dry vacuum has a suction hose length of 2.134 m.
    2 m vs 2.134 m
  • Non-washable filter
    Washable filter
    no
    ▼ Worse than 93% of models
    This wet-dry vacuum does not include a washable filter; the average wet-dry vacuum includes a washable filter.

Video reviews

Hands-on testing, unboxing, and real-world video evaluations

Expert reviews

In-depth analysis and verdict from leading tech publications

H
heimwerker-test.de
09/09/2020
Summary of the review
Kärcher WD 3 Battery - Vacuum Cleaner - heimwerker-test.de
(Translated)Show original
F
fanaticar.de
07/04/2023
Summary of the review
The Kärcher WD 3 Battery Premium Review - Fanaticar Magazine
(Translated)Show original
2
20minutes.fr
25/06/2026
Summary of the review
Kärcher WD 3 S Review: The All-Rounder Wet and Dry Vacuum
(Translated)Show original
Z
zone-outillage.fr
23/01/2021
Summary of the review
Review and Test: Kärcher WD 3 Premium Cordless Wet and Dry Vacuum Cleaner
(Translated)Show original
L
larazon.es
26/03/2026
Summary of the review
Kärcher WD3: The industrial vacuum cleaner that ends up being the most useful in the whole house.
(Translated)Show original

Third-party reviews

Based on 166 buyer reviews from online shops.
Reviews last updated: August 2026 · How we calculate this
Read buyer reviews on Amazon →

What we like about Kärcher WD 3 Battery

  • Excellent, strong suction power for handling both dry dust, debris, pet hair, and wet spills.
  • Cordless freedom and battery operation allow for flexible, go-anywhere cleaning without being tethered to an electrical outlet.
  • Lightweight and highly maneuverable, making it easy to move around during cleaning tasks.
  • Versatile for both indoor and outdoor use, with convenient blower and wet pickup functions.

What we don't like about Kärcher WD 3 Battery

  • The lightweight design can sometimes cause the unit to tip over easily.
  • The price-to-performance ratio and overall quality feel can disappoint some users compared to heavy-duty alternatives.
  • Battery life can limit extended or heavy-duty cleaning sessions.

Verdict

The Kärcher WD 3 Battery is a 36 V cordless wet and dry vacuum with a 17 L container, 300 W rated output and 80 AW suction. It provides cable-free mobility, a blower mode, a 2 m hose and a cartridge filter for dry and wet pickup without changing filters. Runtime is about 15 minutes with a 2.5 Ah battery or up to 30 minutes with 5.0 Ah, but standard charging can take five hours and base versions do not include a battery or charger.

Compare Kärcher WD 3 Battery with other products in the Wet-Dry Vacuums category

1Product to compare no. 1
VS
2Product to compare no. 2
VS
3Product to compare no. 3 (optional)

Graphic comparison of Kärcher WD 3 Battery and other products in the Wet-Dry Vacuums category

No results found