Replacement battery fits 6 Zoomax compatible models. Specifications: 1700mAh, 3.7V, Li-ion. Compatible with: Sonocaddie V350, Sonocaddie V500, Sonocaddie G-4L, Snow, Snow 4.3″, Handheld Video Magnifier. Replaces: Sonocaddie HE9701N, Sonocaddie G-4L, Zoomax R001710000. Zoomax replacement battery designed for GPS/Navigator devices. Designed to match the original manufacturer’s performance.