BOTKK 21.6V Replacement Battery for Dyson V8 (SV10/SV25/215681) – 8500mAh, 65+ Min Runtime

Experience extended cleaning with BOTKKs 21.6V replacement battery, designed for the Dyson V8 family. This upgrade blends robust power, dependable durability, and thoughtful safety into a single pack that slots into your existing vacuum and wall-mount dock. Built for everyday homes, it aims to support longer sessions between charges while preserving the ease of use you expect from your V8 system.

Compatibility and fit

This battery is engineered to fit Dyson V8 models such as SV10, SV25, and 215681, along with familiar variants including V8 Animal, V8 Absolute, V8 Fluffy, and V8 Motorhead. The form factor is designed for seamless integration with the V8 handheld and stick configurations, enabling a smooth transition from your current battery without altering the charging setup.

Power, runtime, and cycle life

With a capacity of 8500 mAh at 21.6 V in a six-cell pack, this replacement aims to deliver strong, stable power across a typical cleaning session. In standard mode you can expect around 65 minutes of runtime per charge, while MAX mode may run about 8–12 minutes depending on how the vacuum is used. While cycles vary with care and usage, many users report a long useful life across multiple charge/discharge cycles.

• High capacity cells for longer cleaning intervals
• Steady power delivery throughout most of a session
• Compatibility with the V8 wall-mount dock for convenient charging

Safe, simple installation

Designed with safety in mind, the battery includes protection features against overcharge, overcurrent, overheat, and short circuits. Replacing is straightforward with a screwdriver and you can use the included dust cover to help seal the battery area after installation.

• Safe charging with built-in protections
• Easy swap using common household tools

What’s in the box and additional items

Each package contains the V8 replacement battery, a dust cover, one screwdriver, three screws, two pre-filters, and one post-filter. The included filters help maintain airflow and filtration between uses, contributing to consistent performance over time.

Durability, certifications, and support

BOTKK emphasizes safety and reliability, backed by certification standards and responsive customer support. If you have questions or need help, contact through your order channel for guidance, troubleshooting, or a satisfactory resolution. This product is presented as a capable upgrade to support longer cleaning sessions and easier upkeep, not a guaranteed outcome.