BMV 600, can I set voltage offset?

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fredrik-wk asked Jun 20, '19

BMV 600, can I set voltage offset?

I have an "old" BMV 600, it constantly reads about 0,20V lower than any other testing device I use to check the voltage on the same conectors. This gives me problems detecting "full charge".

Is there a way to set an offset to calibrate the voltage of the BMV600? Or is there any other way to calibrate the voltage?

Obviously, setting a lower level of full charge will get me to 100%, but I’d prefer an accurate voltage displayed if possible as I have Lithium batteries.

Thanks!

BMV Battery Monitor Lithium Battery voltage

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Mark ♦♦ commented · Jun 20, 2019 at 10:14 AM

Is there a fuse in the BMV power cable & what current rating is the fuse?

A fuse with very small current rating can have enough resistance to cause the issue your seeing.

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fredrik-wk Mark ♦♦ commented · Jun 24, 2019 at 08:08 AM

Thanks Mark, there is a fuse, can I just remove it, or what would be my best option?

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Answer 1 · 2019-07-03T14:44:16Z

Martijn Coster (Victron Energy Staff) answered · Jul 03, 2019 at 02:44 PM

Hi @fredrik_wk

You can just remove the fuse and replace it with a 1A slow blow type.

best regards
Martijn Coster - Victron Energy

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