--- product_id: 613341640 title: "RocketBus 4 BK-40AAABU 1.2V 400mAh Ni-MH Rechargeable Battery Packs for Panasonic Cordless Phone System BK40AAABU" brand: "rocketbus" price: "KD 7.77" currency: KWD in_stock: true reviews_count: 9 category: "Rocket Bus" url: https://www.desertcart.com.kw/products/613341640-rocketbus-4-bk-40aaabu-1-2v-400mah-ni-mh-rechargeable store_origin: KW region: Kuwait --- # 400mAh Rapid Recharge Panasonic Model Perfect Fit 1.2V Ni-MH Power Boost RocketBus 4 BK-40AAABU 1.2V 400mAh Ni-MH Rechargeable Battery Packs for Panasonic Cordless Phone System BK40AAABU **Brand:** rocketbus **Price:** KD 7.77 **Availability:** βœ… In Stock ## Summary > πŸ”‹ Power your calls, power your day β€” never miss a moment! ## Quick Answers - **What is this?** RocketBus 4 BK-40AAABU 1.2V 400mAh Ni-MH Rechargeable Battery Packs for Panasonic Cordless Phone System BK40AAABU by rocketbus - **How much does it cost?** KD 7.77 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/613341640-rocketbus-4-bk-40aaabu-1-2v-400mah-ni-mh-rechargeable) ## Best For - rocketbus enthusiasts ## Why This Product - Trusted rocketbus brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Seamless Compatibility:** Specifically engineered for Panasonic models KX-TGD220N through KX-TGE275S for flawless performance. - β€’ **Confidence in Every Charge:** Backed by a 1-year warranty, ensuring long-lasting reliability and peace of mind. - β€’ **Eco-Friendly Rechargeability:** Sustainable Ni-MH technology lets you recharge and reuse, reducing waste and saving money. - β€’ **Reliable Power, Always Ready:** Keep your cordless phone charged and connected with high-capacity 400mAh Ni-MH cells. - β€’ **Quick Installation, Instant Revival:** Plug-and-play design gets your phone back in action fastβ€”no tech hassle required. ## Overview The RocketBus 4 BK-40AAABU rechargeable battery pack delivers 1.2V and 400mAh Ni-MH power, perfectly compatible with a range of Panasonic cordless phone models. Designed for easy installation and long-lasting use, these batteries come with a 1-year warranty, ensuring your cordless phone stays reliably charged and ready. ## Description Product description Breathe new life into your Panasonic phone with BK-40AAABU batteries These reliable replacement BK-40AAABU batteries are specifically designed to bring your Panasonic cordless phone back to life. With a capacity of 400mAh, they'll keep you chatting for hours on a single charge. BK-40AAABU Battery packs Long-lasting performance: Power your conversations for longer with reliable BK-40AAABU batteries. These Ni-MH batteries are designed for Panasonic cordless phones, offering a dependable and long-lasting charge. Cost-effective choice: Invest in reusable BK-40AAABU batteries and save money in the long run. Unlike disposable batteries, you can recharge these batteries hundreds of times, reducing waste and saving you trips to the store. Convenient power: Enjoy the flexibility of cordless phone use without worrying about constantly replacing batteries. BK-40AAABU batteries are rechargeable, so you can simply place your phone back in the cradle to power up. Versatile compatibility: BK-40AAABU batteries are compatible with a wide range of Panasonic cordless phone models. Check your phone's manual or search online to ensure compatibility. Reliable quality: Trust BK-40AAABU batteries to deliver consistent performance. These batteries are built to last and provide a dependable power source for your cordless phone conversations. Replacement BK-40AAABU Battery Packs for Panasonic Cordless Phones These high-quality BK-40AAABU replacement battery packs are compatible with Panasonic cordless phones that use the BK-40AAABU battery model. They are Ni-MH rechargeable batteries, designed to deliver long-lasting performance for your cordless phone conversations. Review: Cordless phone batteries - Replacement batteries for my 2 cordless phone handsets: exact match. easy to install, phones charged up quickly and now work again! Review: Great Product - Was same type and brand of battery that came with my phone 12 years ago. I charged them up and my phone works perfectly again. ## Features - 1.2V 400mAh - Ni-MH Rechargeable - Compatible with KX-TGD220N, KX-TGD22N, KX-TGD223N, KX-TGD224N, KX-TGD225N, KX-TGE273S, KX-TGE274S, KX-TGE275S - 1 Year Warranty ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CW4JMHHB | | Amperage | 400 Milliamps | | Antenna Location | Phone | | Battery Capacity | 400 Milliamp Hours | | Battery Cell Composition | NiMH | | Battery Cell Type | NiMH | | Best Sellers Rank | #21 in Cordless Telephone Batteries | | Brand | RocketBus | | Compatible Phone Models | KX-TGD220N, KX-TGD22N, KX-TGD223N, KX-TGD224N, KX-TGD225N, KX-TGE273S, KX-TGE274S, KX-TGE275S | | Customer Reviews | 4.5 out of 5 stars 323 Reviews | | Item Dimensions | 1 x 1 x 2 inches | | Manufacturer | RocketBus | | Model Name | BK-40AAABU | | Model Number | BK-40AAABU | | Number of Batteries | 4 AAA batteries required. (included) | | Recommended Uses For Product | Phone | | Reusability | Rechargeable | | UPC | 680063060908 | | Unit Count | 4.0 Count | | Voltage | 1.2 Volts | | Warranty Description | 1 Year Warranty | ## Product Details - **Battery Capacity:** 400 Milliamp Hours - **Battery Cell Composition:** NiMH - **Brand:** RocketBus - **Number of Batteries:** 4 AAA batteries required. (included) - **Recommended Uses For Product:** Phone ## Images ![RocketBus 4 BK-40AAABU 1.2V 400mAh Ni-MH Rechargeable Battery Packs for Panasonic Cordless Phone System BK40AAABU - Image 1](https://m.media-amazon.com/images/I/81Gq4rxGCUL.jpg) ![RocketBus 4 BK-40AAABU 1.2V 400mAh Ni-MH Rechargeable Battery Packs for Panasonic Cordless Phone System BK40AAABU - Image 2](https://m.media-amazon.com/images/I/71ihnpi6OjL.jpg) ![RocketBus 4 BK-40AAABU 1.2V 400mAh Ni-MH Rechargeable Battery Packs for Panasonic Cordless Phone System BK40AAABU - Image 3](https://m.media-amazon.com/images/I/71JnyXMs3FL.jpg) ![RocketBus 4 BK-40AAABU 1.2V 400mAh Ni-MH Rechargeable Battery Packs for Panasonic Cordless Phone System BK40AAABU - Image 4](https://m.media-amazon.com/images/I/71tFC4Um2+L.jpg) ![RocketBus 4 BK-40AAABU 1.2V 400mAh Ni-MH Rechargeable Battery Packs for Panasonic Cordless Phone System BK40AAABU - Image 5](https://m.media-amazon.com/images/I/71N1-LBBdNL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Cordless phone batteries *by J***. on January 13, 2026* Replacement batteries for my 2 cordless phone handsets: exact match. easy to install, phones charged up quickly and now work again! ### ⭐⭐⭐⭐⭐ Great Product *by F***Y on January 21, 2026* Was same type and brand of battery that came with my phone 12 years ago. I charged them up and my phone works perfectly again. ### ⭐⭐⭐⭐⭐ Rechargeable batteries *by D***R on December 12, 2025* Works well on my Panasonic home phones. ## Frequently Bought Together - RocketBus 4 BK-40AAABU 1.2V 400mAh Ni-MH Rechargeable Battery Packs for Panasonic Cordless Phone System BK40AAABU - RocketBus 6-Pack BK-40AAABU Replacement 1.2V 400mAh Battery for Panasonic Cordless Phone System BK40AAABU - Cerepros 4-Pack BK-40AAABU 1.2V 400mAh Replacement Battery Pack for Panasonic Cordless Phone Handset BK40AAABU --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.kw/products/613341640-rocketbus-4-bk-40aaabu-1-2v-400mah-ni-mh-rechargeable](https://www.desertcart.com.kw/products/613341640-rocketbus-4-bk-40aaabu-1-2v-400mah-ni-mh-rechargeable) --- *Product available on Desertcart Kuwait* *Store origin: KW* *Last updated: 2026-05-13*