MPF Products 2600mAh High Capacity Extended 010-10806-01, 010-10806-20, 361-00029-00, 361-00029-01 Battery Replacement Compatible with Garmin Astro DC20, DC30, DC40 GPS Dog Tracking Collar Transmitter Replacement for the following Garmin battery model/part numbers: 010-10806-00, 010-10806-0, 010-10806-20, 010-10806-01, 361-00029-00, 361-00029-01. Compatible with the following Garmin models: Astro DC20, Astro DC 20, Astro DC30, Astro DC 30, Astro DC40, Astro DC 40. 3.7V 2600mAh 9.6Wh Lithium-ion Rechargeable Battery Pack. 1 Year Replacement Warranty. MPF Products is a Registered Trademark.