Reply To: 57 Johnson 35 hp – Tachometer?

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April 3, 2019 at 7:36 pm #172573
olcah
Participant

    US Member

    If all you use the battery for is starting, my experience with a 1956 Johnson 30 HP is that a car battery does not require recharge for weeks of use. My battery came from an old Mustang, size 58 I believe. I take the battery out and recharge it ashore every 2 or 3 weeks just to keep it topped up.