Bird Barrier Bird Shock Charger 12V Small Solar (bs-cs30) is a small charger which provides enough power supply to your Bird Shock for steady usage. It is an effective equipment to ensure large birds will avert from any target area or place thru secured intermittent shock. This solar charger powers up to 500 feet of track and can be installed in any area with good sunlight several hours every day. It highlights an on/off switch and connectors on the bottom. The Bird Barrier 12V Battery for Solar Charger is sold separately.