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Garmin Pro Series Lithium-ion Dog Device Battery The Garmin Pro Series Lithium-ion Dog Device Battery is a long lasting rechargeable battery that lasts about 60 hours per charge for the PT 10 dog device and about 40 hours per charge for TB 10 dog device.  Bring along this extra lithium-ion battery for extended training sessions with your Pro Series dog devices. $29.95 Quantity: Add to Favorites