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jswyukon avatar image
jswyukon asked

High Voltage Alerts - newbie questions - (setup details provided)

My first post. A newbie to Victron Systems. Installation is in a professional campervan conversion that is less than one year old. Built for boon-docking for several days at at time.

Renogy PV panels - 600 watts total
Pylontech LiFePo4 100aH batteries x 4
Victron Cerbo GX firmware - v2.89
Victron Orion Smart 12V/12V-30A firmware v1.13
Victron SmartSolar MPPT 100/50 firmware v1.61
Victron MultiPlus 12V 3000 120-50 120V firmware ?
DVCC screens below

AC loads are 1800W induction cooktop, 450W milk frother, chargers for laptop/tablet/portable
speaker.

High Voltage Alerts (HVAs) frequent after batteries reinstalled from wither storage. Assuming that was the batteries balancing themselves? See HVAs again because of small AC drain and high solar input. (3 days off grid and batteries did not drop below 86%).

So... questions
1. Will I be always chasing HVAs because DC-DC charging + PV charging capabilities
may often outstrip AC loads?

2. Will continuing HVAs cause battery damage over the long haul?

3. Are their setting changes that will dump/divert excess charge?

4. Any other basics here that I am missing?

Any guidance greatly appreciated.

dvcc-a.jpgdvcc-b.jpg


battery chargingLithium BatteryBattery ProtectDVCCovervoltage
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dvcc-b.jpg (2.2 MiB)
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1 Answer
mvas avatar image
mvas answered ·

There is no such thing as " ... dump / divert excess charge ..."
Check the Charging Parameters vs the HVA value.
Yes, a very high battery voltage can be long term detrimental.

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