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New 3.7V 2200mAh Replacement Battery For Garmin Astro DC20 DC30 DC40 Astro 220 Astro 320 6 wire Plug|Mobile Phone Batteries| - AliExpress
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Amazon.com: Synergy Digital Dog Collar Battery, Works with Garmin Astro 320 Dog Collar, (Li-Ion, 3.7V, 2600 mAh) Ultra Hi-Capacity, Compatible with Garmin 010-10806-00 Battery : Electronics
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Amazon.com: HQRP Extended Battery Pack Compatible with Garmin Astro System DC40 DC-40 GPS Dog Tracking System Collar Transmitter 010-11484-00 : Electronics
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