Garmin Alkaline Battery Pack for Rino 520/530 The Garmin Rino Alkaline Battery Pack for Rino 520 and 530 provides mobile power to your Garmin Rino series GPS unit. This battery pack replaces the lithium ion battery pack that comes with the unit. The Garmin Rino Alkaline battery pack can power your 520 or 530 GPS unit for up to 18 hours via two-watts TX power. Compatible with: Garmin: Rino 520, 530;