Garmin Alkaline Battery Pack for Rino 520 and Rino 530 (010-10571-00)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Compatible with Rino 520 and Rino 530 GPS units</li><li>Replaces the lithium ion battery pack that comes with the unit</li><li>Powers up to 18 hours via two-watts TX power</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31QN6i2n-4L.jpg" noproxy>