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jaconradie avatar image
jaconradie asked

Newbie need help with Multiplus 24/3000/70 battery seup 2 x LifePO4 Batteries (24V)

I am newbie to Victron inverter battery setup, I need advice to setup 2 x LifePO4 Batteries 100AH (Hubble Brand) in series for the Multiplus 24/3000/70 Inverter. I selected Lithium Iron Phosphate (LifePO4) in the Victron setup and the default settings are as follows

Multiplus Settings (for the 2 Batteries in Series)
------------------------------
- Absorption Voltage 28.4V
- Float Voltage 27.00V
- Charge Current 20A
- Repeat Absorption Time: 1Hr
- Repeat Absorbtion Interval: 7 days
- Absorbtion Time: 1 Hr

Label on thelifepo4-label-settings.jpg LifePO4 Battery-----------------------------------------------Equalized Voltage : 14.4V
Float Voltage: 14V
Cutoff Voltage 12.2V
Max Discharge Current: 100A


Any help will be appreciated

Thanks

Multiplus-II
lifepo4-label-settings.jpg (47.3 KiB)
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1 Answer
Alexandra avatar image
Alexandra answered ·

@jaconradie

It will likely be 2x the voltages shown

Equalisation (for lithium is absorption/bulk)

2 x 14.4 is 28.8v (if they trip then you can lower it.)

Float

2x 14v so 28v.

Cut off

2x 11.2v so 22.4v. but i would run that a bit higher, at about 22.8v or 23v. So the inverters shut off before the batteries.

Obviously on the lithium profile as you said. The rest looks good.

Capacity is 1.2kwh

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jaconradie avatar image jaconradie commented ·
Much apreciated Alexandra
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