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Garmin Astro System DC20 DC20 DC30 DC40 Do 3400mAh Replacement Battery: BatteryClerk.com Dog Collar
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Cameron Sino Battery 3.7V/2200mAh/2600mAh/3400mAh 010-10806-00 for GARMIN Astro System DC20,DC30,DC40,Dog Tracking DC 20