--- product_id: 595262561 title: "CBQ 1500mAh MX Keys Replacement Battery for MX Keys K800 YR0073, 802085P 802085 533-000177 533-000221 533-000141,Wireless Keyboard Mouse Replacement Battery" brand: "cbq" price: "R367" currency: ZAR in_stock: true reviews_count: 9 category: "Cbq" url: https://www.desertcart.co.za/products/595262561-cbq-1500mah-mx-keys-replacement-battery-for-mx-keys-k800 store_origin: ZA region: South Africa --- # 3.7V stable voltage output 1500mAh high-capacity power Multi-layer safety protection CBQ 1500mAh MX Keys Replacement Battery for MX Keys K800 YR0073, 802085P 802085 533-000177 533-000221 533-000141,Wireless Keyboard Mouse Replacement Battery **Brand:** cbq **Price:** R367 **Availability:** ✅ In Stock ## Summary > 🔋 Recharge your workflow with power and peace of mind! ## Quick Answers - **What is this?** CBQ 1500mAh MX Keys Replacement Battery for MX Keys K800 YR0073, 802085P 802085 533-000177 533-000221 533-000141,Wireless Keyboard Mouse Replacement Battery by cbq - **How much does it cost?** R367 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/595262561-cbq-1500mah-mx-keys-replacement-battery-for-mx-keys-k800) ## Best For - cbq enthusiasts ## Why This Product - Trusted cbq brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safety First:** Built-in overcharge, overdischarge, and short circuit protection for worry-free performance. - • **Power That Lasts:** 1500mAh lithium polymer battery ensures extended usage for your MX Keys K800 series. - • **Expert Support Always:** Dedicated professional technical team ready to assist whenever you need. - • **Plug & Play Simplicity:** Effortless installation with step-by-step online guides—get back to work faster. - • **Perfect Fit, Zero Compromise:** Exact size and thickness match your original battery for seamless compatibility. ## Overview The CBQ 1500mAh MX Keys Replacement Battery is a high-quality, rechargeable lithium polymer battery designed specifically for MX Keys K800 series keyboards and mice. Delivering a stable 3.7V output and equipped with comprehensive safety protections, it offers a perfect size match for easy installation and reliable performance, backed by professional customer support. ## Description Buy CBQ 1500mAh MX Keys Replacement Battery for MX Keys K800 YR0073, 802085P 802085 533-000177 533-000221 533-000141,Wireless Keyboard Mouse Replacement Battery: Keyboard & Mouse Combos - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Direct replacement - Did the trick. A bit of a project to disassemble the keyboard to replace this battery, but well worth it. Good as new. A few good You Tube videos to help with the process. Review: Short Battery Life - I bought my K-800 keyboard about 10 years ago, the stock battery at that time would last 7 or more days without being recharged. now it would only last maybe a day or less, so when I purchased this new battery, I expected that it would last 7 or more days, but unfortunately not, the brand-new battery might last 3 days that's it. Update: 061526 now the battery dies the same day after a full charge, just junk. ## Features - 【About product】Part Numbers:533-000221 802085P 802085 533-000177 533-000141.K800 Series Rechargeable Battery . 3.7V 1500mAh/5.55Wh Size:85*19*6mm,Net:28.5g Gross:46g - 【Compatible model】Best original replacement battery,Same size and thickness as your original battery. Fully compatible with your battery. K800 MX KEYS YR0073 series Keyboard and mouse Replacement Battery. - 【Multiple Safety Protection 】The replacement battery is made of high quality batteries, each replaceable battery allows for longer runtime, built-in overcharge, overdischarge, overcurrent, overvoltage, overload, overheat protection, and provides short circuit protection. - 【Easy installation】Just plug in the battery，If you don't know how to install it you can go to the guide on the website and just type " K800 Battery Replacement" into the search box. - 【Professional Services】If you have any questions about our products or during the use of any questions, please contact us, we are always ready to welcome you. We have the most professional technical team to provide you with the perfect solution. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CN98L3SN | | Antenna Location | keyboard | | Battery Capacity | 1500 Milliamp Hours | | Battery Cell Composition | Lithium Polymer | | Battery Cell Type | Lithium Polymer | | Battery Weight | 28 Grams | | Best Sellers Rank | #1,192 in Computer Keyboard & Mouse Combos | | Brand | CBQ | | Compatible Phone Models | k800,mx keys,yr0073 | | Customer Reviews | 2.8 out of 5 stars 15 Reviews | | Item Dimensions | 0.75 x 3.35 x 0.24 inches | | Manufacturer | CBQ | | Model Name | 533-000221 802085P 802085 533-000177 533-000141 | | Model Number | K800 MX KEYS YR0073 | | Number of Batteries | 1 Lithium Polymer batteries required. (included) | | Recommended Uses For Product | keyboard | | Reusability | Rechargeable | | Unit Count | 1.0 Count | | Voltage | 3.7 Volts (DC) | ## Product Details - **Battery Capacity:** 1500 Milliamp Hours - **Battery Cell Composition:** Lithium Polymer - **Brand:** CBQ - **Number of Batteries:** 1 Lithium Polymer batteries required. (included) - **Recommended Uses For Product:** keyboard ## Images ![CBQ 1500mAh MX Keys Replacement Battery for MX Keys K800 YR0073, 802085P 802085 533-000177 533-000221 533-000141,Wireless Keyboard Mouse Replacement Battery - Image 1](https://m.media-amazon.com/images/I/61G05zSKl6L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Direct replacement *by K***H on April 15, 2024* Did the trick. A bit of a project to disassemble the keyboard to replace this battery, but well worth it. Good as new. A few good You Tube videos to help with the process. ### ⭐ Short Battery Life *by M***S on April 13, 2026* I bought my K-800 keyboard about 10 years ago, the stock battery at that time would last 7 or more days without being recharged. now it would only last maybe a day or less, so when I purchased this new battery, I expected that it would last 7 or more days, but unfortunately not, the brand-new battery might last 3 days that's it. Update: 061526 now the battery dies the same day after a full charge, just junk. ### ⭐⭐ Don't buy for the price like I did *by S***T on March 1, 2025* Neither battery seems to want to take a full charge even though they are getting charged over night and if I unplug the charger they only last a short time. Not near what the original batteries were that came with these keyboards. The original batteries would take a full charge in a few hours and would last for a couple weeks before needing another charge. They lasted a full three years before needing replacements. These batteries do match the original in every way and look identical but think they were just old when they were sold to me. Chinese knockoffs. ## Frequently Bought Together - CBQ 1500mAh MX Keys Replacement Battery for MX Keys K800 YR0073, 802085P 802085 533-000177 533-000221 533-000141,Wireless Keyboard Mouse Replacement Battery - DC 3.7V 600mAh 602535 battery Replacement for Logitech MX Master 2 MX Master 2s MX Master 3 MX Master 3s MX Anywhere 2 MX Anywhere 2S MX Anywhere 3 MX Anywhere 3s MX ERGO Wireless Mouse AHB572535 - Cosmos Replacement Mouse Feet Pads Compatible with MX Master (1st Gen) and Also for MX Master 2S Gaming Mouse, 2 Sets --- ## 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.co.za/products/595262561-cbq-1500mah-mx-keys-replacement-battery-for-mx-keys-k800](https://www.desertcart.co.za/products/595262561-cbq-1500mah-mx-keys-replacement-battery-for-mx-keys-k800) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-07-07*