--- product_id: 264952337 title: "Kastar BT500 Battery Pack Replacement for Kaito KA500 5-Way Weather Alert Radio, Kaito KA550 5-Way Powered AM/FM Shortwave NOAA Weather Emergency Radio, Kaito Voyager Pro KA600 Voyager Radios" brand: "kastar" price: "¥5855" currency: JPY in_stock: true url: https://www.desertcart.jp/products/264952337-kastar-bt500-battery-pack-replacement-for-kaito-ka500-5-way store_origin: JP region: Japan --- # 36V voltage for reliable performance Compatible with multiple Kaito & Eton radios 800mAh NiMH rechargeable power Kastar BT500 Battery Pack Replacement for Kaito KA500 5-Way Weather Alert Radio, Kaito KA550 5-Way Powered AM/FM Shortwave NOAA Weather Emergency Radio, Kaito Voyager Pro KA600 Voyager Radios **Brand:** kastar **Price:** ¥5855 **Availability:** ✅ In Stock ## Summary > 🔋 Power your peace of mind—never miss a critical alert! ## Quick Answers - **What is this?** Kastar BT500 Battery Pack Replacement for Kaito KA500 5-Way Weather Alert Radio, Kaito KA550 5-Way Powered AM/FM Shortwave NOAA Weather Emergency Radio, Kaito Voyager Pro KA600 Voyager Radios by kastar - **How much does it cost?** ¥5855 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/264952337-kastar-bt500-battery-pack-replacement-for-kaito-ka500-5-way) ## Best For - kastar enthusiasts ## Why This Product - Trusted kastar brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Lightweight & Portable:** At just 0.03 kg, this battery pack keeps your emergency radio ready without weighing you down. - • **Seamless Compatibility:** Designed specifically for Kaito KA500, KA550, KA600, and select Eton/Grundig models—no guesswork, just perfect fit. - • **Rechargeable & Eco-Friendly:** NiMH technology means you can recharge and reuse, reducing waste and staying prepared sustainably. - • **Power Up Your Emergency Gear:** 800mAh NiMH battery ensures long-lasting, dependable energy when you need it most. - • **Stay Connected When It Counts:** Keep your 5-way weather alert radio powered through storms and outages—don’t be the one left in the dark. ## Overview The Kastar BT500 is a lightweight, rechargeable 800mAh NiMH battery pack delivering 36 volts of reliable power. Engineered for seamless compatibility with Kaito KA500, KA550, KA600, and select Eton/Grundig radios, it ensures your 5-way weather alert and emergency radios stay charged and ready. Perfect for professionals who demand dependable, eco-conscious emergency preparedness. ## Description Compatible with the following radios: Kaito Kaito KA500 5-way Weather Alert Radio Kaito KA550 5-Way Powered AM/FM Shortwave Kaito Voyager Pro KA600 Voyager Radios Eton / GRUNDIG FR200 FR200G FR250 FR300 FR350 FR370 FR400 FR405 FR600 FR600B PLEASE NOTE: THIS BATTERY IS NOT COMPATIBLE WITH Eton FRX3 FR360 Axis Radio! ## Features - manufacturer: Kastar - Item Trademark: KASTAR - Item Weight: kilograms, pounds, 0.0661386786, 0.03 - Item Category: Battery ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07KZB5K5R | | Antenna Location | Radio | | Battery Capacity | 800 Milliamp Hours | | Battery Cell Type | NiMH | | Best Sellers Rank | #187,213 in Electronics ( See Top 100 in Electronics ) #628 in Radio Communication Products | | Brand | Kastar | | Customer Reviews | 4.5 4.5 out of 5 stars (580) | | Item Weight | 0.03 Kilograms | | Manufacturer | Kastar | | Model Number | MH-1B-KA600 | | Number of Batteries | 1 AA batteries required. (included) | | Reusability | Rechargeable | | UPC | 689211449237 | | Unit Count | 1.0 Count | | Voltage | 36 Volts | ## Product Details - **Battery capacity:** 800 Milliamp Hours - **Battery cell composition:** NiMH - **Brand:** Kastar - **Number of batteries:** 1 AA batteries required. (included) - **Recommended uses for product:** Radio ## Images ![Kastar BT500 Battery Pack Replacement for Kaito KA500 5-Way Weather Alert Radio, Kaito KA550 5-Way Powered AM/FM Shortwave NOAA Weather Emergency Radio, Kaito Voyager Pro KA600 Voyager Radios - Image 1](https://m.media-amazon.com/images/I/61eE0e7u1LL.jpg) ## Questions & Answers **Q: The kaito ka-600l uses a 18650 battery. why does the listing show this to be compatible with the ka-600l?** A: I don't know about the listing comparison , but it is a 3AAA compact . My radio was an Eton Microlink FR160 . Looking at reviews from previous buyers , it IS necessary to change the polarity of the wiring . Simple to do . Mark connector , then depress pin tab thru side of plastic connector , and gently remove wire and pin from connector . When both are out , reverse position of wires , then gently slide pin into connector until pin tab locks into place . **Q: Will this fit a c crane observer radio?** A: Spec on the battery: Type: Ni-MH Cell: 2/3 AA ( times 3) Voltage: 3.6 V Current rating: 800 mAh Battery Dimension: 1 3/4 in x 1 1/4 in x 9/16 in. Visual image of battery and specs are in the radio's user manual. Not sure about dimension. **Q: will it work with microlink FR160** A: The battery fits and works on an Eton FR-300 radio. Not familiar with Eton FR-160. **Q: What are the dimensions of the battery pack? Fit Grundig emergency radio?** A: Width 1.671, height 1.135, depth 0.568 inches. Height value omits the leads and connector. Battery pack marked Ni-MH 2/3AA600mAH 3.6V. Battery pack fit my Kaito KA500 emergency radio perfectly and the wiring was correct (ref. some other comments). Don't have a Grundig. --- ## 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.jp/products/264952337-kastar-bt500-battery-pack-replacement-for-kaito-ka500-5-way](https://www.desertcart.jp/products/264952337-kastar-bt500-battery-pack-replacement-for-kaito-ka500-5-way) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-07-22*