Dyson V8 replacement batteries with longer runtimes – premium CELLONIC quality & 100% compatibility – buy online at subtel
If your Dyson V8 cordless vacuum cleaner no longer holds its charge, doesn’t charge properly or only flashes red, it’s probably time to replace its battery.
With a premium Dyson V8 replacement battery from CELLONIC, you can return your vacuum to full suction power and performance – without the expense of buying a new Dyson or an overpriced OEM battery. A cost-effective, sustainable solution for powerful, reliable cleaning.
Our range of compatible Dyson V8 batteries
The right Dyson replacement battery for every model
CELLONIC Dyson V8 specifications – power, voltage and capacity
CELLONIC replacement Dyson V8 batteries use advanced lithium-ion technology with a rated voltage of 21.6V. Capacities are available up to 6000mAh (6.0Ah) for significantly longer runtimes – ideal for larger homes or households with pets.
Technical specifications:
Voltage: 21.6V
Capacity: 2000mAh to 6000mAh
Cell technology: Lithium-ion – with no memory effect & low self-discharge
Weight: approx. 370–480g depending on capacity
Safety: CE and RoHS certified, with built-in protection against overcharge, overheating and short circuits
Features: Some models include an LED charge indicator
Premium CELLONIC batteries match or exceed the runtime and performance of your original Dyson V8 battery – durable, maintenance-free and reliable day after day.
100% compatibility – which Dyson models use the V8 battery?
Our Dyson V8 replacement batteries are designed to be fully compatible with all Dyson V8 vacuums, including:
✔️ Dyson V8 Absolute
✔️ Dyson V8 Animal
✔️ Dyson V8 Total Clean
✔️ Dyson V8 Cyclone series
✔️ They also replace original Dyson part numbers such as SV10, 215681, 6INR21 and more
All Dyson V8 replacement batteries can be charged with the original Dyson charger, so you can continue using your existing dock or cable.
Why buy a Dyson V8 replacement battery from CELLONIC?
✅ Fully compatible with all Dyson V8 models
✅ Extended runtimes with higher-capacity versions (up to 6000mAh)
✅ CE-certified safety and premium build quality
✅ Easy installation – only three screws needed to replace the battery
✅ Eco-friendly – extend the life of your vacuum and reduce electronic waste
✅ More affordable than an OEM Dyson battery, but just as powerful
✅ Backed by subtel’s dedicated customer service team, with fast delivery in 2–4 working days, a 30-day money-back guarantee and a 36-month warranty
A CELLONIC replacement battery is the simplest way to extend the life of your Dyson V8 by years – saving you money and cutting down on unnecessary electronic waste.
How to change your Dyson V8 battery?
Replacing the battery in your Dyson V8 is quick, simple and straightforward:
- Switch off the vacuum and disconnect it from the charger
- Use a Phillips screwdriver to remove the three screws (one beneath the handle, two by the dust collector)
- Slide out the old battery
- Insert the new CELLONIC replacement battery
- Refit the screws
- Fully charge the new battery before first use
Tip: For best results, calibrate every few months – fully charge → run flat → fully charge again – this helps maintain accurate capacity readings.
Dyson V8 battery guide – troubleshooting, tips & replacement FAQ
How long does a Dyson V8 battery last per charge?
In Eco mode, around 40 minutes with a standard battery. In MAX mode, about 7 minutes. Higher-capacity CELLONIC batteries provide much longer runtimes.
Why is my Dyson V8 battery draining so quickly?
All rechargeable batteries lose capacity over time. Frequent use of MAX mode or clogged filters also shorten runtime. Replacing the battery – especially with a high-capacity CELLONIC battery – restores performance.
What does it mean if my Dyson V8 battery is flashing red?
A red flashing light usually signals a fault such as overheating, cell damage or a connection error. In most cases, the battery needs replacing. CELLONIC batteries come with a 3-year guarantee, so you’re fully protected if issues arise.
Why is my Dyson V8 vacuum stuttering during use?
Stuttering often points to a weakened battery, contact issues or blocked filters. Cleaning may help, but if the problem persists, a battery replacement is the best fix.
CELLONIC Dyson V8 replacement batteries – powerful, affordable and built to last. Order today from subtel for fast delivery, a 30-day money-back guarantee and a 3-year warranty!