The upper edge of the collar should be waterproofed with plastic sealer to prevent any water from leaking between the collar and chimney pipe
Batteries from Dantona Industries are quality manufactured batteries
Stainless Steel doesn't cause electrolysis so you can use it with any other metal
UPC: 017801722253
Schumacher SC1359 Battery Charger, 12 V Output, 2 A at 6 V, 15 A at 12 V Charge Mounting Blocks The upper edge of theSchumacher Battery Charger, 120 VAC Input, 12 V Output, 3. 6 A Input, 2 A at 6 V, 15 A at 12 V Charging Current, Lead Acid, 75 Ah Battery, Clip Terminal, Digital Display, Dimensions: 10. 5 in W x 3. 63 in D x 7. 75 in H