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pauljeffrey avatar image
pauljeffrey asked

Low voltage disconnect needed with BMV-712

I am installing a lithium battery in my van, using a Redarc dual charger and a Victron BMV-712 monitor. According to the Redarc manual, I need to install a low-voltage disconnect. Does the BMV-712 provide that function, or do I need to install a separate low-voltage disconnect?

BMV Battery Monitor
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2 Answers
Daniël Boekel (Victron Energy Staff) avatar image
Daniël Boekel (Victron Energy Staff) answered ·

Hi @PaulJeffrey

What kind of lithium battery are you using? (brand / type)

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pauljeffrey avatar image pauljeffrey commented ·

It's a Battle Born LiFePo4 100ah.

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Daniël Boekel (Victron Energy Staff) avatar image Daniël Boekel (Victron Energy Staff) ♦♦ pauljeffrey commented ·

@PaulJeffrey

if it's this one, it already has an internal disconnect function:

https://battlebornbatteries.com/shop/12v-lifepo4-deep-cycle-battery/

https://battlebornbatteries.com/wp-content/uploads/2018/03/BB10012-Cut-Sheet.pdf

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pauljeffrey avatar image pauljeffrey Daniël Boekel (Victron Energy Staff) ♦♦ commented ·

That's it. Thanks!

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kai avatar image
kai answered ·

BMV-712 can be configured to trigger a low voltage disconnect, but you will need an external relay (controlled by the BMV-712) to perform the actual disconnect.

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