Replacement Battery for DYSON V11 SV15 SV18, 25.2V 4000mAh — extra digital

Replacement Battery for DYSON V11 SV15 SV18, 25.2V 4000mAh — extra digital is a rechargeable Li-ion battery pack designed to restore and extend the runtime of compatible Dyson cordless vacuum cleaners. With a nominal voltage of 25.2 V and a capacity of 4000 mAh (100.8 Wh), this battery is intended as a spare or replacement for users who need reliable power for stick and handheld vacuuming tasks. The pack features reduced self-discharge characteristics to retain charge during storage and supports models in the V11 series including Torque Drive and other V11 variants.

Advantages

This replacement battery offers a large charge capacity to increase cleaning duration compared with depleted factory cells. Low self-discharge helps preserve remaining charge when the battery is not in use, and the Li-ion chemistry provides a balance of energy density and weight suitable for handheld vacuum applications. The pack is produced to match the voltage and form factor required by the listed Dyson V11 series machines, enabling straightforward swapping to restore regular operation.

Suitable for

• Replacing worn or failing battery in Dyson V11 Torque Drive and other V11 series cord-free vacuums
• Keeping a spare battery for extended cleaning sessions without lengthy charging interruptions
• Home and light commercial cleaning where cordless runtime needs restoration

Key specifications

• Battery type: Lithium-ion (Li-ion)
• Nominal voltage: 25.2 V
• Capacity: 4000 mAh (100.8 Wh)
• Designed form factor: Replacement pack for V11-series cordless vacuums
• Self-discharge: low, suitable for intermittent use and storage
• Warranty period: 12 months

How to use

Ensure the vacuum is switched off and disconnected from any charger before replacing the battery. Remove the depleted battery following the manufacturer's access instructions for your Dyson V11-series model, then install the replacement pack until it locks into place. Charge the new battery fully before first use using the original Dyson charger or a compatible charger designed for the vacuum model. Observe normal safety precautions: avoid short circuits, do not expose the battery to extreme heat or liquids, and handle with care to prevent damage.

Usage recommendations

For optimal performance, fully charge the battery before initial use, avoid deep discharges when possible, and store the battery in a cool, dry place at around 40–60% charge if it will not be used for extended periods. Use the replacement pack with the compatible Dyson V11-series machines indicated by the product fit, and follow safety guidance for Li-ion batteries to maximize service life and maintain safe operation.