--- product_id: 408976318 title: "4-Pack BK-40AAABU 1.2V 400mAh Replacement Battery Pack for Panasonic Cordless Phone Handset BK40AAABU" brand: "cerepros" price: "£17.62" currency: GBP in_stock: true reviews_count: 8 category: "Cerepros" url: https://www.desertcart.co.uk/products/408976318-4-pack-bk-40aaabu-1-2v-400mah-replacement-battery-pack store_origin: GB region: United Kingdom --- # 400mAh long-lasting capacity 1.2V NiMH rechargeable power Eco-friendly materials 4-Pack BK-40AAABU 1.2V 400mAh Replacement Battery Pack for Panasonic Cordless Phone Handset BK40AAABU **Brand:** cerepros **Price:** £17.62 **Availability:** ✅ In Stock ## Summary > 🔌 Power your calls, power your day—never miss a beat! ## Quick Answers - **What is this?** 4-Pack BK-40AAABU 1.2V 400mAh Replacement Battery Pack for Panasonic Cordless Phone Handset BK40AAABU by cerepros - **How much does it cost?** £17.62 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/408976318-4-pack-bk-40aaabu-1-2v-400mah-replacement-battery-pack) ## Best For - cerepros enthusiasts ## Why This Product - Trusted cerepros brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Eco-Smart Choice:** Made with environmentally friendly materials to keep your tech green and clean. - • **Ready When You Are:** 4-pack value ensures you never run out of backup power at home or work. - • **Plug & Play Perfect Fit:** Seamless compatibility with multiple Panasonic models—no adapters needed. - • **Consistent Power, Always:** High-performance NiMH cells deliver steady energy for your Panasonic cordless phones. - • **Endless Calls, Less Hassle:** Rechargeable 400mAh capacity means fewer battery swaps and more talk time. ## Overview The BK-40AAABU 4-pack offers 1.2V 400mAh NiMH rechargeable batteries designed specifically for Panasonic cordless phones. Trusted for consistent performance and long-lasting power, these eco-friendly batteries provide a cost-effective, reliable replacement solution compatible with multiple Panasonic models. Ideal for professionals seeking uninterrupted communication with a sustainable edge. ## Description BK-40AAABU 1.2V 400mAh NiMH Rechargeable Batteries. Are you tired of constantly replacing your batteries and dealing with devices that run out of juice too quickly? Upgrade to the reliable and long-lasting BK-40AAABU batteries and experience uninterrupted power like never before! Review: Perfect replacement for my Panasonic cordless phone - I bought this 4-pack to replace the old worn-out batteries in my Panasonic cordless handsets. Installation was straightforward—just pop them in like regular AAA batteries. Once installed, the phones immediately powered up and started charging without any issues. Performance has been solid so far. The phones hold a charge well, and standby/talk time feels just like when the phones were new. It’s great that these are rechargeable Ni-MH batteries, so I don’t have to worry about frequent replacements. Having four in the pack also gives me backups ready to go. The price is very reasonable compared to OEM replacements, and the quality feels just as good. I appreciate that they fit perfectly and didn’t require any modifications or adapters. Overall, if your Panasonic cordless phone is struggling to hold a charge, these batteries are a simple, cost-effective fix. Highly recommended. Review: Batteries - Works well ## Features - High Performance: These batteries are designed for high performance, delivering consistent power to your Panasonic phones. - Long-Lasting: Say goodbye to frequent battery changes. The BK-40AAABU batteries are built to last, providing you with reliable power for extended periods. - Versatile Compatibility: These batteries are compatible with a wide range of Panasonic cordless phones and are perfect for everyday use at home, work, or on the go. - Environmentally Friendly: Made with environmentally friendly materials, these batteries are safe for the environment while offering exceptional performance. - Value Pack: Each pack contains multiple batteries, ensuring you always have spares on hand whenever you need them. - Trusted Brand: Backed by a trusted brand known for quality and reliability, you can trust BK-40AAABU batteries to power your devices efficiently. - 1.2V 400mAh NiMH Rechargeable ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09K6SXTQ6 | | Antenna Location | Phone | | Battery Capacity | 400 Milliamp Hours | | Battery Cell Composition | NiMH | | Battery Cell Type | NiMH | | Best Sellers Rank | #40 in Cordless Telephone Batteries | | Brand | Cerepros | | Compatible Phone Models | KX-TGD220N, KX-TGD22N, KX-TGD223N, KX-TGD224N, KX-TGD225N, KX-TGE273S, KX-TGE274S, KX-TGE275S | | Customer Reviews | 4.6 out of 5 stars 481 Reviews | | Item Weight | 1 Ounces | | Manufacturer | Cerepros | | Model Name | BK-40AAABU | | Model Number | BK-40AAABU | | Number of Batteries | 4 AAA batteries required. | | Recommended Uses For Product | Phone | | Reusability | Rechargeable | | UPC | 670087372217 | | Unit Count | 1 Count | | Voltage | 3.6 Volts | ## Product Details - **Number of Batteries:** 4 AAA batteries required. - **Brand:** Cerepros - **Battery Cell Composition:** NiMH - **Battery Capacity:** 400 Milliamp Hours - **Recommended Uses For Product:** Phone ## Images ![4-Pack BK-40AAABU 1.2V 400mAh Replacement Battery Pack for Panasonic Cordless Phone Handset BK40AAABU - Image 1](https://m.media-amazon.com/images/I/71b5KPzGp2L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect replacement for my Panasonic cordless phone *by P***O on September 2, 2025* I bought this 4-pack to replace the old worn-out batteries in my Panasonic cordless handsets. Installation was straightforward—just pop them in like regular AAA batteries. Once installed, the phones immediately powered up and started charging without any issues. Performance has been solid so far. The phones hold a charge well, and standby/talk time feels just like when the phones were new. It’s great that these are rechargeable Ni-MH batteries, so I don’t have to worry about frequent replacements. Having four in the pack also gives me backups ready to go. The price is very reasonable compared to OEM replacements, and the quality feels just as good. I appreciate that they fit perfectly and didn’t require any modifications or adapters. Overall, if your Panasonic cordless phone is struggling to hold a charge, these batteries are a simple, cost-effective fix. Highly recommended. ### ⭐⭐⭐⭐⭐ Batteries *by M***T on April 24, 2026* Works well ### ⭐⭐⭐⭐⭐ Right size for Panasonic phones. *by M***A on January 12, 2026* Batteries were as described. They fit my Panasonic phone and have worked just great so. Hope they last a long time. ## Frequently Bought Together - Cerepros 4-Pack BK-40AAABU 1.2V 400mAh Replacement Battery Pack for Panasonic Cordless Phone Handset BK40AAABU - Panasonic Cordless Phone with Answering Machine, Advanced Call Block, Bilingual Caller ID and Easy to Read High-Contrast Display, Expandable System with 2 Handsets - KX-TGD832M (Metallic Black) --- ## 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.uk/products/408976318-4-pack-bk-40aaabu-1-2v-400mah-replacement-battery-pack](https://www.desertcart.co.uk/products/408976318-4-pack-bk-40aaabu-1-2v-400mah-replacement-battery-pack) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-30*