Garmin Battery Packs for T 20 & TT 25 Dog Devices Collars/Leads/Couplers and Accessories 5 seconds to your compatible

5 seconds to your compatible handheld receiver

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and high setting)

(Med) 12 Hours

Garmin Battery Packs for T 20 & TT 25 Dog Devices Collars/Leads/Couplers and Accessories 5 seconds to your compatibleGarmin Battery Packs for T 20 & TT 25 Dog Devices are available in standard and extended. The standard battery pack is the same as the battery that came on your T 20 or TT 25. It allows up to 68 hours using dynamic update rate. The extended battery pack is an upgrade on the battery that came on your T 20 or TT 25. It allows up to 136 hours using dynamic update rate.