I have a Group 31 Odyssey AGM in my Gen 1, a Group 27 Odyssey AGM in my Gen 2 and a Group 24 Autozone AGM in my Gen 3.
The Gen 3 battery was an emergency purchase, but seems to be working fine. When we truck camp with the Edgestar fridge, I strap an Odyssey PC1200 AGM in a battery box in the...