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gerald-d asked

Multiplus charger setting for DIY built lithium battery

I have a MultiPlus 12 | 1600 | 70 230V. Until this morning it worked happily with lead acid batteries 3X 105 Ah in series. Today I converted to a lithium battery consisting of 4X 3.2V LiPo4 cells 280 Ah.

The battery specs are:

charger-01.jpg
charger-02.jpg
I do have a BMS that trips at 14.8 V (3.7 V per cell)

Right now the Multiplus is set as follows:

charger-04.jpg


How should I adjust those numbers to try and hold a 90% state of charge?. Should I be using a smart shunt or something else?

Thank you

Multiplus-IILithium Batterycharger
charger-01.jpg (134.9 KiB)
charger-02.jpg (24.9 KiB)
charger-04.jpg (103.8 KiB)
2 |3000

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