--- product_id: 185218699 title: "Vax Genuine ONEPWR 4.0Ah Max Battery | 3-Year Warranty | Fits every ONEPWR product | BV25040, Black" brand: "vax" price: "1437.75 DT" currency: TND in_stock: true reviews_count: 8 url: https://www.desertcart.tn/products/185218699-vax-genuine-onepwr-4-0ah-max-battery-3-year-warranty store_origin: TN region: Tunisia --- # LED runtime indicator Rechargeable & pre-charged 4.0Ah high-capacity power Vax Genuine ONEPWR 4.0Ah Max Battery | 3-Year Warranty | Fits every ONEPWR product | BV25040, Black **Brand:** vax **Price:** 1437.75 DT **Availability:** ✅ In Stock ## Summary > 🔋 Power your productivity with the ONEPWR battery that never quits. ## Quick Answers - **What is this?** Vax Genuine ONEPWR 4.0Ah Max Battery | 3-Year Warranty | Fits every ONEPWR product | BV25040, Black by vax - **How much does it cost?** 1437.75 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/185218699-vax-genuine-onepwr-4-0ah-max-battery-3-year-warranty) ## Best For - vax enthusiasts ## Why This Product - Trusted vax brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Fade-Free Lithium Tech:** Consistent, reliable energy from start to finish—never lose power mid-task. - • **Ready to Go Out of the Box:** Pre-charged and rechargeable for instant, eco-friendly power on demand. - • **Smart LED Runtime Indicator:** Stay in control with real-time battery life updates at a glance. - • **Universal ONEPWR Compatibility:** Seamlessly powers every ONEPWR device in your arsenal—no more battery hunting. - • **3-Year Manufacturer’s Guarantee:** Confidence backed by a solid warranty—because quality matters. ## Overview The Vax Genuine ONEPWR 4.0Ah Max Battery delivers fade-free lithium-ion power compatible with all ONEPWR products. Featuring a smart LED runtime indicator and pre-charged, rechargeable design, it ensures uninterrupted performance backed by a 3-year manufacturer’s warranty. ## Description Every OnePWR battery fits every OnePWR product - with fade free lithium technology. .LED runtime indicator . ## Features - Every OnePWR battery fits every OnePWR product - with fade free lithium technology. - LED runtime indicator - Rechargeable and pre-charged - Manufacturer's 3 year guarantee - Visit vax.co.uk/contact for support ## Technical Specifications | Specification | Value | |---------------|-------| | Amperage | 4 Amps | | Antenna Location | Cordless | | Asin | B084PPGBB3 | | Battery Capacity | 4 Amp Hours | | Battery Cell Type | Lithium Ion | | Battery Weight | 580 Grams | | Best Sellers Rank | 28,540 in Home & Kitchen (See Top 100 in Home & Kitchen) 352 in Vacuum Batteries | | Brand Name | Vax | | Compatible Phone Models | Not for mobiles | | Customer Reviews | 4.5 4.5 out of 5 stars (2,186) 4.5 out of 5 stars | | Global Trade Identification Number | 05012512167183 | | Item Dimensions | 5.5 x 8.5 x 13 centimetres | | Item Type Name | Battery | | Item Weight | 0.65 Kilograms | | Manufacturer | Vax | | Model Name | BV25040 | | Model Number | BV25040 | | Number Of Batteries | 1 Lithium Ion batteries required. (included) | | Reusability | Rechargeable | | Unit Count | 1.0 count | | Voltage | 3.7 Volts | ## Product Details - **Battery capacity:** 4 Amp Hours - **Battery cell composition:** Lithium Ion - **Brand:** Vax - **Number of batteries:** 1 Lithium Ion batteries required. (included) - **Recommended uses for product:** Cordless ## Images ![Vax Genuine ONEPWR 4.0Ah Max Battery | 3-Year Warranty | Fits every ONEPWR product | BV25040, Black - Image 1](https://m.media-amazon.com/images/I/51iMcoAswxL.jpg) ![Vax Genuine ONEPWR 4.0Ah Max Battery | 3-Year Warranty | Fits every ONEPWR product | BV25040, Black - Image 2](https://m.media-amazon.com/images/I/516d3LdPolL.jpg) ![Vax Genuine ONEPWR 4.0Ah Max Battery | 3-Year Warranty | Fits every ONEPWR product | BV25040, Black - Image 3](https://m.media-amazon.com/images/I/81o6IlvduJL.jpg) ## Available Options This product comes in different **Colour Name** options. ## Questions & Answers **Q: Is the battery compatible with blade 3 model?** A: The answer is ‘Yes’. I also own a Blade 3 vacuum cleaner. The 3mh battery that is supplied with this product won’t last long and buying an extra battery is a must. This battery will charge in around 3 hours and last a lot longer than the one supplied. I personally think that Vax should have provided this product with the 4mh battery from the outset. The good news is that the ‘One-power’ battery will also power any ‘One-power’ product and there are a few of these on the market. **Q: Is the vax onepwr battery exactly the same as the hoover onepwr battery** A: The VAX and Hoover brands are both owned by the same Company, Techtronic Industries Company Limited in Hong Kong. As they've chosen to use the same name for these batteries (onepwr), I assume they are identical. **Q: Is this compatible with vax blade 2 which has a fixed battery, ie it charges in the machine. vbb2asv1. my battery isn’t lasting as long as it used to** A: The replacement battery I purchased charges separately from the cleaner using its own charger. I suspect it is a different battery. Have a look on vax website and it should give you information about the type of battery you need. Rechargeable batteries do slowly loose their storage capacity over time. **Q: I have a flashing red light when charging the battery, anyone else experienced this and know how to fix?** A: I believe it's a faulty battery, if it is still under warranty contact vax they will send you a replacement. I found there customer service team excellent ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great product, but call Vax to register as the form does not work on their website for this battery *by on Reviewed in the United Kingdom 2 August 2025* As described, new battery has arrived and works in the Vax and has charged up fully.The only issue I had was that it would not let me register it in the Vax website for the 3 years warranty as the form does not recognize the model number BV29040V, if you drop the V it does but then the serial number does not match the model number, so I ended up using the chatbot and got through to a human that registered it for me. ### ⭐⭐⭐⭐⭐ Replacement *by on Reviewed in the United Kingdom 19 February 2025* First impression. I'm replacing the original battery received with the vaccum cleaner.Plug and play easy to use.Same size as the previous oneI wanted to be able to replace just the battery when it dies than replacing the whole unit and I am glad I choose this model.The new battery is lighter than my old one.It took around 2 hours to charge.Power : I only tried it on the living room rug and I must say it does not last too long on power boost and rotating brush mode but neither the old one. Less than 10 min.I used to do all the flat with one charge on regular mode and brush so this is to be tested later. ### ⭐⭐⭐⭐ Expensive *by on Reviewed in the United Kingdom 11 February 2026* Effective replacement, but expensive ## Frequently Bought Together - Vax Genuine ONEPWR 4.0Ah Max Battery | 3-Year Warranty | Fits every ONEPWR product | BV25040, Black - Vax ONEPWR 4L Multifloor Hard Floor Cleaner Solution, Citrus Burst Scent, Removes 99.9percent of Bacteria, 1-9-142097, Silver --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/185218699-vax-genuine-onepwr-4-0ah-max-battery-3-year-warranty](https://www.desertcart.tn/products/185218699-vax-genuine-onepwr-4-0ah-max-battery-3-year-warranty) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-08*