Interesting putting corflute, metal shields etc to protect the battery. In the cruiser the battery is located only 8in from the hot exhaust. I would rather a battery that is covered under warranty and I don’t need to add extras to keep the heat away.
Mark
When driving down the road at a reasonable pace, heat in the engine bay is not a huge concern to your battery. But when you are in stop/start traffic, gong slow off road in low range, climbing sand hill after sand hill at a slow pace, then the heat in the engine bay can be an issue and may reduce the life of your battery. A heat shield on one side of the battery is a help but not much use in the scenarios I just described as the heat is trapped under the bonnet.
Not much use relying on a warranty when hundreds of kms out in the bush
. I would prefer a battery that will start my fourbie.