Garmin DriveAssist™ 51 LMT-S | GPS Navigation for Car
Amazon.com: Synergy Digital GPS Battery, Works with Garmin Drive 51LMT-S GPS, (Li-Ion, 3.7V, 1100 mAh) Ultra High Capacity, Compatible with Garmin 361-00056-00 Battery : Electronics
Amazon.com: Battery Replacement Kit for Garmin Drive 51, Drive 51LM, Drive 51LMT-s with Tools, How-to Video, Long Life Battery : Electronics