Not having any dramas yet but was thinking the other day the Batteries ( both main and Brant ) are now 3 1/2 years old. The main one lives on one of the Projector maintainer type chargers (in the car on one of the harness plugs ) if it goes more than 2 days without being driven.

Don't want to throw money down the toilet if they should happily do another couple of years but don't want to get stuck with a flat bed to Subaru for a master code either.

Is there a way to health check both of them and know that they will last another year or two or they will just crap themselves without warning and there is screw all I can do about it?

Are the Optima batteries really worth the extra money or are they more wank and marketing than anything else?

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Stoner & Webber 2011 World Champions