--- product_id: 71738342 title: "RocketBus 2 BK-40AAABU Replacement 1.2V 400mAh Battery Packs for Panasonic Cordless Phone Handset" brand: "rocketbus" price: "RM81" currency: MYR in_stock: true reviews_count: 13 category: "Rocket Bus" url: https://www.desertcart.com.my/products/71738342-rocketbus-2-bk-40aaabu-replacement-1-2v-400mah-battery-packs store_origin: MY region: Malaysia --- # 400mAh Long-lasting Charge Panasonic Model Compatibility 1.2V NiMH Power RocketBus 2 BK-40AAABU Replacement 1.2V 400mAh Battery Packs for Panasonic Cordless Phone Handset **Brand:** rocketbus **Price:** RM81 **Availability:** βœ… In Stock ## Summary > πŸ”‹ Power your calls, never miss a moment! ## Quick Answers - **What is this?** RocketBus 2 BK-40AAABU Replacement 1.2V 400mAh Battery Packs for Panasonic Cordless Phone Handset by rocketbus - **How much does it cost?** RM81 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.my](https://www.desertcart.com.my/products/71738342-rocketbus-2-bk-40aaabu-replacement-1-2v-400mah-battery-packs) ## 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€’ **Extended Talk Time:** 400mAh capacity ensures your cordless phone stays powered longer, reducing downtime. - β€’ **Reliable Power Boost:** 1.2V NiMH rechargeable cells deliver consistent energy for uninterrupted calls. - β€’ **Compact & Lightweight:** At just 1 ounce per battery, it’s easy to install without adding bulk to your handset. - β€’ **Seamless Compatibility:** Perfectly fits multiple Panasonic models like KX-TGD220N and KX-TGE275S for hassle-free replacement. - β€’ **Eco-Friendly Rechargeability:** NiMH technology supports hundreds of recharge cycles, cutting waste and saving money. ## Overview The RocketBus 2 BK-40AAABU is a pair of 1.2V 400mAh NiMH rechargeable battery packs designed specifically for Panasonic cordless phone handsets. Compatible with a wide range of Panasonic models, these lightweight batteries provide reliable, long-lasting power to keep your conversations flowing smoothly while supporting eco-friendly reuse. ## Description desertcart.com: RocketBus 2 BK-40AAABU Replacement 1.2V 400mAh Battery Packs for Panasonic Cordless Phone Handset : Electronics Review: These batteries work fine in an older Panasonic phone. - The original batteries failed to hold a charge and I replaced them with a set of Panasonic NiMH batteries which sometimes did hold a charge and sometimes did not. My conclusion is that not all NiMH batteries are the same. Thus, it is important to make sure that the replacement batteries have the same model number as the original batteries. Review: Great batteries if... - you only need rechargeable batteries. But it was cheaper for me to buy the replacement post cap which included a battery. ## 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 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B076L726W5 | | Amperage | 1.2 A | | Antenna Location | Phone | | Battery Capacity | 400 milliamp_hours | | Battery Cell Composition | NiMH | | Battery Cell Type | NiMH | | Battery Weight | 1 ounces | | Best Sellers Rank | #162 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 | 4.1 out of 5 stars 863 Reviews | | Manufacturer | RocketBus | | Model Name | RocketBus BK 40AAABU | | Model Number | BK-40AAABU | | Number of Batteries | 2 AAA batteries required. | | Recommended Uses For Product | Phone | | Reusability | Rechargeable | | UPC | 680063060977 | | Unit Count | 2 Count | | Voltage | 1.2 volts | ## Product Details - **Battery Capacity:** 400 Milliamp Hours - **Battery Cell Composition:** NiMH - **Brand:** RocketBus - **Number of Batteries:** 2 AAA batteries required. - **Recommended Uses For Product:** Phone ## Images ![RocketBus 2 BK-40AAABU Replacement 1.2V 400mAh Battery Packs for Panasonic Cordless Phone Handset - Image 1](https://m.media-amazon.com/images/I/61YgpOFnfML.jpg) ![RocketBus 2 BK-40AAABU Replacement 1.2V 400mAh Battery Packs for Panasonic Cordless Phone Handset - Image 2](https://m.media-amazon.com/images/I/7114Dkh5g4L.jpg) ![RocketBus 2 BK-40AAABU Replacement 1.2V 400mAh Battery Packs for Panasonic Cordless Phone Handset - Image 3](https://m.media-amazon.com/images/I/71LgqJtMTkL.jpg) ![RocketBus 2 BK-40AAABU Replacement 1.2V 400mAh Battery Packs for Panasonic Cordless Phone Handset - Image 4](https://m.media-amazon.com/images/I/71ihnpi6OjL.jpg) ![RocketBus 2 BK-40AAABU Replacement 1.2V 400mAh Battery Packs for Panasonic Cordless Phone Handset - Image 5](https://m.media-amazon.com/images/I/71tFC4Um2+L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ These batteries work fine in an older Panasonic phone. *by H***N on March 30, 2022* The original batteries failed to hold a charge and I replaced them with a set of Panasonic NiMH batteries which sometimes did hold a charge and sometimes did not. My conclusion is that not all NiMH batteries are the same. Thus, it is important to make sure that the replacement batteries have the same model number as the original batteries. ### ⭐⭐⭐⭐⭐ Great batteries if... *by T***3 on July 3, 2025* you only need rechargeable batteries. But it was cheaper for me to buy the replacement post cap which included a battery. ### ⭐⭐⭐⭐ 2 batteries didn't work. *by L***S on July 26, 2023* Two batteries were not able to charge on the phones. ## Frequently Bought Together - RocketBus 2 BK-40AAABU Replacement 1.2V 400mAh Battery Packs for Panasonic Cordless Phone Handset - RocketBus 4 BK-40AAABU 1.2V 400mAh Ni-MH Rechargeable Battery Packs 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.my/products/71738342-rocketbus-2-bk-40aaabu-replacement-1-2v-400mah-battery-packs](https://www.desertcart.com.my/products/71738342-rocketbus-2-bk-40aaabu-replacement-1-2v-400mah-battery-packs) --- *Product available on Desertcart Malaysia* *Store origin: MY* *Last updated: 2026-09-29*