My Odyssey PC1500 will be 14 years old in February 2026.

https://www.pistonheads.com/gassing/topic.asp?h=0&f=9&t=1117177

It did sterling service for many years turning over my TVR Chimaera's 4.0 litre V8, and has continued to do good work on my other subsiquent cars.

Odyssey pure lead AGM batteries are exceptional quality, so I'd like to think my PC1500 will last at least 20 years, the secret to a long life for any lead acid battery correct charging, and making sure you never allow it to fully discharge.

Parasitic drains are a real killer, my TVR had many so I used a remote battery isolator called a Battery Brain, this worked really well. Monty has no such parasitic losses, probably because he has no alarm and the Morgan loom is infinitely superior to TVR's poor wiring efforts. However, I still use a Durite key opperated battery isolator on Monty, largely for security and fire safety when he's laid up but it will also extend battery life.

My Odyssey PC1500 will definitely follow me from car to car until it finally gives up, and lets hope that's a long way off yet, I have run several tests on the battery that indicate it's actually still in first class condition, so if I continue to avoid the dreaded deep discharge scenario it may even last longer than 20 years?