Replacement Battery for Dyson V8 Cordless Vacuum
A screw-in replacement battery for the Dyson V8 stick vacuum, rated 25.5 V and 4000 mAh (102 Wh). It uses the same body form, the same screw-in rail and the same contact block as the original pack, so it seats and locks exactly where the factory battery did. Unscrew the old pack, screw this one in — no wiring, no soldering, no disassembly.
Fit this when your V8 runs for only a few minutes, cuts out under load, or will no longer hold a charge overnight.
Specifications
| BatteryWorks SKU |
BW-DYSON-V8 |
| Battery Model (marked on pack) |
ML-ET-5W66MT957 |
| Nominal Voltage |
25.5 V |
| Capacity |
4000 mAh |
| Energy |
102 Wh |
| Chemistry |
Rechargeable lithium-ion |
| Fitment |
Screw-in docking rail, original contact block |
| Tools Required |
None (hand-tightened screw-in) |
| Country of Origin |
China |
Key Features
-
Screw-in fit, no tools — unscrew the old pack, screw this one in. A genuine bolt-in replacement.
-
4000 mAh at 25.5 V — 102 Wh of energy, a high-capacity upgrade for the V8's cordless runtime.
-
Original mounting geometry — the screw-in rail and contact block match the factory pack, so the vacuum balances and locks as it should.
-
Rechargeable lithium-ion — charges on your existing Dyson dock or charger, exactly as the original battery does.
What's in the Box
- 1 × replacement battery pack for Dyson V8
Before You Order
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Compatible Models: Dyson V8, V8 Absolute, V8 Animal, V8 Fluffy, V8 Motorhead
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Check your model. This pack is for the Dyson V8 range. V6, V7, V10 and V11 batteries are different shapes and will not fit. Compare your existing pack before ordering.
- Switch the vacuum off and remove it from the charging dock before changing the battery.
- Charge fully before first use. Charge only on a charger intended for this vacuum.
- Do not disassemble, crush or solder the pack, do not short the terminals, and do not throw it into fire or water — as marked on the pack itself.
- Discontinue use immediately if the pack swells, overheats or is damaged by liquid.
- Dyson and V8 are trademarks of Dyson Technology Limited. BatteryWorks is an independent supplier and is not affiliated with, authorised by or endorsed by Dyson. Model and part numbers are shown solely to indicate compatibility.
Brand: BatteryWorks | Fits: Dyson V8 | SKU: BW-DYSON-V8
