Most batteries hit end-of-life between year 3 and year 5 in NYC. Year 3 is the smart time to start load-testing annually. Year 4 is the smart time to budget a replacement.
Any auto parts store (AutoZone, Advance, O'Reilly) tests batteries free in 5 minutes. Bring the receipt — they'll write the CCA rating on it for comparison next year.
When it's time, we replace on the curb at $249 / hour service rate plus battery at retail. Old battery recycled.
