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luigi-miranda avatar image
luigi-miranda asked

How is Time To Go calculated in VRM portal?

My VRM portal is showing a SOC of 84.5% and Time To go shows only 17.5hrs (see below). I have 1,000 Ahr of Victron Lithium Smart batteries (5 x 200 A-hr in parallel), Lynx Smart BMS, Multiplus II, and Cerbo GX. My discharge current has been a steady 8 to 10 amps. With a discharge current of 10 amps, my calculation gives 84.5 hours to go (84.5% x 1,000 a-hr / 10 amps). Or if I assume a floor limit of say 20% SOC, that would give 64.5 hours to go. Still much higher than the 17.5 hrs shown in the portal.

How is Time to Go calculated? Is my calculation wrong?


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VRMLithium BatterySOC
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2 Answers
snoobler avatar image
snoobler answered ·

Shunt settings. You specify a discharge floor (mine's 0%):

1674259173490.png


"time to go" is how long before you reach this discharge floor.


1674259173490.png (77.4 KiB)
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luigi-miranda avatar image luigi-miranda commented ·
Ok. I use the Lynx Smart BMS that has its own shunt so I will check thise settings. Thanks!
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klim8skeptic avatar image
klim8skeptic answered ·

@snoobler The Lynx Smart BMS is a different beast, compared to a BMV / SmartShunt.

@Luigi Miranda Has the Lynx been set up correctly for your 1000Ah bank, and the correct # of paralleled batteries?

lynx-smart-bms.png



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luigi-miranda avatar image luigi-miranda commented ·

Yes, I have those settings correct. Thanks

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