Synergy Digital GPS Battery, Works with Garmin DriveAssist 50 LMT-D GPS, (Li-Ion, 3.7V, 750 mAh) Ultra High Capacity, Compatible with Garmin 361-00056-21 Battery - Walmart.com
Synergy Digital GPS Battery, Works with Garmin Drive Assist 50LMT GPS, (Li-Ion, 3.7V, 930 mAh) Ultra High Capacity, Compatible with Garmin 361-00035-01 Battery - Walmart.com
Amazon.com: NewPower99 Battery Kit for Garmin DriveSmart 50 and DriveSmart 50LM with Tools, Video Instructions, Long Life Battery : Electronics