DTK SV11 21.6V Replacement Battery for Dyson V7, 4.5Ah Li-ion
Product description
At 21.6V, the DTK Professional SV11 is a lithium-ion replacement battery for select Dyson V7 cordless vacuums. Its listed capacity is 4.5Ah, or 4500mAh.
It is designed for the V7 SV11 battery family, with compatibility listed for models including Motorhead, Fluffy, Animal Pro+, Trigger, HEPA, Car+Boat, Absolute, Mattress, and Allergy. The model distinction matters: is your vacuum the SV11 type rather than a later V7 variant?
The battery has LED indicators on both sides and is listed as compatible with the V7 series OEM charger. Fit is the key buying check, the V7 name alone does not identify every compatible battery.
The essentials
This is a replacement power pack, not a vacuum or a universal Dyson battery. Its 21.6V lithium-ion design and 4.5Ah capacity are the main specifications to compare with the battery currently installed in your vacuum. The listing also gives an energy rating of 97.2Wh.
DTK states that the pack is intended to provide a direct replacement for V7 SV11 batteries and describes it as compatible with the V7 series OEM charger and device. That makes it relevant when the existing battery needs replacing but the vacuum itself is still the one you plan to use. It does not establish compatibility with every product carrying a V7 label.
Size & fit
The stated fit is for Dyson V7 SV11-series vacuums, including the listed Motorhead, Fluffy, Animal Pro+, Trigger, HEPA, Car+Boat, Absolute, Mattress, and Allergy versions. The product details specifically exclude V7 Advanced SV25 and SV37 batteries, as well as V6, V8, V10, and V11 series vacuums. A close-looking battery or a shared V7 name is not enough to confirm fit, match the SV11 designation and the shape of your existing pack against the product images before ordering.
Who it’s for
This replacement is aimed at owners of a compatible V7 SV11 cordless vacuum who want to keep using that machine rather than replace the whole vacuum. The capacity and voltage are useful comparison points if you are checking a replacement against the battery you have now. The side LED indicators also give a visible feature on the battery itself.
It makes sense if your vacuum is confirmed as an SV11 model and you need a replacement pack for ordinary household cleaning. Better avoided if your battery is marked SV25 or SV37, or if the vacuum belongs to another series named in the exclusions. For this type of purchase, confirming the battery family is more important than choosing by capacity alone.
Practical questions
Which Dyson models are listed as compatible? DTK lists several V7 SV11 versions, including Motorhead, Fluffy, Animal Pro+, Trigger, HEPA, Car+Boat, Absolute, Mattress, and Allergy. Check the specific battery type rather than relying only on the vacuum’s V7 name.
What are the battery specifications? The listing gives 21.6V, 4.5Ah (4500mAh), 97.2Wh, and lithium-ion cell chemistry.
Does it fit the V7 Advanced? The product details say it does not fit the V7 Advanced SV25 or SV37 battery type. Those designations should not be treated as interchangeable with SV11.
When it makes sense
Choose this DTK pack when the vacuum is confirmed to use the SV11 battery and the stated voltage and capacity suit your replacement needs. If you are comparing it with a basic replacement, its documented LED indicators and listed V7 OEM-charger compatibility may help distinguish it. If the existing battery or vacuum identifies as SV25, SV37, or another excluded series, this is the wrong fit regardless of the shared Dyson V7 name.