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Starting battery and deep cycle - charging
i have a 9hp outboard that has electric start and a alternator. it has a motorcycle battery that is dedicated for starting. it is not hooked up to the main panel. it's a nissan 9.8 and i do not believe the output voltage is regulated.
What i would like to do is charge my deep cycle battery while the motor is running.
what is the best way to accomplish this?
could i just wire them together in parallel?
is there a regulator device that completes the circuit when a charging voltage is present?
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