Amazon.com: Synergy Digital Remote Start and Entry Systems Battery, Compatible with Viper 7941X Remote Start and Entry Systems, (Li-Pol, 3.7V, 600mAh) Ultra High Capacity, Replacement for Viper JFC503040 Battery : Automotive
Amazon.com: CP-HK05, PR-652954 Battery for Harman Kardon One, 1800mAh - Sold by smavco : Electronics