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Old 07-04-2019, 03:36   #1
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Battery Isolators/Alt voltage drop

L450: New battery isolators installed, but charge from alternators dropped to 5 volts. I bought the boat without isolators and the only charging wires were from the computer harness, but producing 14.5 volts. I followed the schematic, but may have missed something?
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Old 07-04-2019, 11:25   #2
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Re: Battery Isolators/Alt voltage drop

Use an ACR / VSR not diode-based isolators
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Old 07-04-2019, 11:37   #3
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Re: Battery Isolators/Alt voltage drop

Quote:
Originally Posted by john61ct View Post
Use an ACR / VSR not diode-based isolators
What diode based isolator drops the voltage 10 volts?

Something else going on here. Did the OP make a schematic? Post it.
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Old 07-04-2019, 13:44   #4
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Re: Battery Isolators/Alt voltage drop

Finally figured it out. They are Cristec isolators. Apparently the alternator needs to see voltage before giving voltage so I pulled off an accessory from the ignition.
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