DTK V8 10,000 mAh Replacement Battery for Dyson V8

DTK V8 is a rechargeable replacement battery listed for Dyson V8 cordless vacuums. Its 10,000 mAh capacity and included filters and installation items may suit owners replacing a screw-in battery, but compatibility depends on the vacuum’s model and battery connection.

At a glance

The listing claims compatibility with V8 models SV10 and SV25, plus V7 Advanced SV37. It specifies screw-in style batteries and excludes V8 click-in models SV55 and SV55-a.
The manufacturer claims a 10,000 mAh capacity and 21.6-volt output. These are listing specifications, not independent runtime measurements.
The package list names two pre-filters, one post-filter, a dust cover, a screwdriver and three screws.

Price

$67.98Save 15%

Reference price: ~~$79.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

Includes replacement filters and basic items for battery installation, according to the listed package contents.
Compatibility information identifies both supported model families and excluded click-in models.

Technical specifications

9 specifications

Identity
Brand	DTK
Model	V8

Power and battery
Battery capacity	10000 milliamp_hours
Voltage	21.6 volts
Battery type	Lithium Ion
Rechargeable	Rechargeable
Amperage	10 A
Battery weight	1.3 pounds

Dimensions and installation
Dimensions listed	5.78 x 3.17 x 4.72 inches

What to know before buying

Compatibility is limited by battery style. Confirm your vacuum’s model and that it uses a screw-in battery. The listing says this is not compatible with V8 click-in models SV55/SV55-a.

Listing details to confirm

The listing claims close to 1,000 charge and discharge cycles, but supplies no testing conditions. It also claims 10Ah, 21.6V and 216Wh, while listing battery capacity and voltage separately. Treat runtime and cycle-life claims as unverified.

What’s in the box

Included

1 V8 replacement battery for SV10/SV25/SV37
1 battery dust cover
1 screwdriver
Mounting screws
2 pre-filters
1 post-filter

Who is it for?

A good fit for

Dyson V8 owners with a screw-in battery who need a replacement and want filters included.
Owners of listed V7 Advanced SV37 models, after confirming the battery connection and fit.

Less suited to

Owners of Dyson V8 click-in models SV55 or SV55-a.
Buyers who need a verified runtime or a confirmed service-life figure before purchase.

DTK V8 10,000 mAh Replacement Battery for Dyson V8 · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 2,002 ratings

5 stars79%79%
4 stars11%11%
3 stars1%1%
2 stars1%1%
1 star8%8%

Customer feedback describes good fit and function in compatible vacuums, while battery-life experiences are mixed. Some customers say it lasts longer, and others report shorter life than the original. That distinction matters for buyers prioritizing runtime, since the listing gives capacity figures but no verified operating-time result.

Positive themes

Customers report that the battery works well in their vacuums and appreciate its fit.
Feedback describes battery quality positively, including reports that it served as a replacement for the original.

Mixed feedback

Reports of battery life differ. Some customers say it lasts longer, while others say it does not last as long as the original.

Frequently asked questions

Which vacuums does the listing say this battery fits?

It lists screw-in V8 batteries for SV10 and SV25 and also names V7 Advanced SV37. It says the battery does not fit V8 click-in models SV55 and SV55-a. Confirm your exact model and battery style before ordering.

What is the listed battery capacity and voltage?

The specifications list 10000 milliamp_hours and 21.6 volts. The listing also advertises 216Wh, but does not provide independent measurements or runtime results.

What comes with the battery?

The listed contents are one replacement battery, one battery dust cover, one screwdriver, three screws, two pre-filters and one post-filter.

Does the listing establish how long the battery will run?

No runtime duration is specified. The claimed capacity does not by itself establish operating time, which can vary with vacuum use and settings.