How to diagnose and troubleshoot battery issues?

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djibi asked Dec 30, '18

How to diagnose and troubleshoot battery issues?

How do you proceed to know if a battery is good or bad?

Thanks

battery

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wkirby ♦♦ commented · Dec 30, 2018 at 11:06 AM

A diagnosis very much depends upon what type of battery it is. What type of battery do you have under test?

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djibi wkirby ♦♦ commented · Dec 30, 2018 at 11:16 PM

AGM and GEL battery how to that it is the good one? real capacity not the fake one.

thanks

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Answer 1 · 2018-12-30T23:26:02Z

markus answered · Dec 30, 2018 at 11:26 PM

The only thing to be sure is, to do a manual capacity test. The discharge rate depends on battery type. It is basically like, putting a defined load on a fully charged battery and measure the time until it reaches low voltage. A BMV can be very helpful to make this tests. Refer to the batteries datasheets, for discharge rates and voltages.

Regards,

Markus

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djibi commented · Dec 31, 2018 at 03:44 PM

Thank you, do you know how to program the BMV relay in order to cut of the phoenix inverter from feeding load whed SOC reach 50%?

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markus ♦♦ djibi commented · Dec 31, 2018 at 03:52 PM

Yes, it should work, just in connecting the BMV relay output with the remote switch input of the Phoenix. You can program the relay in Victron Connect App, for opening at 50% SOC.

Regards,

Markus

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djibi markus ♦♦ commented · Dec 31, 2018 at 05:32 PM

okay, thanks Markus

And sorry for my question every day.

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