Replacement Lithium Battery for Dyson V7
Revive Your Cleaning Power: Haineng Energy Replacement Battery for Dyson V7 Series
Is your Dyson V7 struggling to complete a single room? Don't let a tired battery hold you back. At Haineng Energy, we manufacture premium-grade replacement batteries specifically engineered for the Dyson V7, delivering the same (or even better) runtime and reliability as the original.
Why Professional Sellers Trust Haineng Energy V7 Batteries
Premium Grade A Cells: We only use high-density Grade A lithium cells. This ensures that your V7 maintains strong suction from 100% all the way down to 0% charge.
Advanced Smart BMS: Safety is our priority. The integrated Haineng Energy Smart BMS provides multi-layered protection against over-charging, over-discharging, and overheating.
Universal Compatibility: Seamlessly fits all V7 models, including V7 Motorhead, V7 Animal, V7 Trigger, V7 Absolute, and V7 Car+Boat.Standard screws and fitment—guaranteed.
High Capacity Options: Available in 3000mAh, 3500mAh, and 4000mAh versions to give your customers the extra cleaning time they crave. ⏳
Technical Specifications
| Feature | Performance Detail |
| Voltage | 21.6V |
| Capacity | 3000mAh / 3500mAh / 4000mAh |
| Compatibility | Dyson V7 Series (All Models) |
| Safety Certs | CE, FCC, RoHS, PSE, UN38.3 |
| Cycle Life | 500+ Full Charge Cycles |
| Brand | Haineng Energy |
our team’s B2B Partner Corner
Are you looking for a reliable factory partner for vacuum accessories? At Haineng Energy, we support global wholesalers and online retailers (Amazon/eBay/Shopify) with:
Custom Branding (OEM): We can laser-print your logo on the battery shell and design custom retail packaging for your brand.
Strict Quality Control: Every single V7 battery undergoes a 100% aging and capacity test before packing to ensure zero DOA (Dead on Arrival) cases.
Fast Global Shipping: We provide all necessary MSDS and shipping certificates for smooth customs clearance worldwide.
Application Tip:
"The V7 is a classic model with a huge user base. Offering a high-capacity 4000mAh version is a great way to differentiate your store from competitors selling standard 2100mAh packs!"
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Need a custom specification, private label or OEM/ODM programme? Request a wholesale quotation — we reply within 24 hours.



