A 435CC battery is small and weak for the demands of a modern vehicle, and it combines with the dual rate charging system in Hondas which can result in a constant undercharged condition.As I said the battery is 9 months old 435 CCA and Advance Auto checked it this evening and it's fine
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Thanks for the tips, especially about the headlightsYou’d be better off with a larger smart charger if that’s the route you want to go.
Putting in a larger battery is easy when the current one needs replacing.
Also, keep your headlights on, this signals the charging system to go into a higher output mode.