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Mattb4 said:

It would help if you specified your model and also battery type. However at a guess based on your mention of 28.8 you have a 3kW one. Setting #9 Battery Boost Charge Voltage with default of 28.8v changes depending on setting #8 Battery type. In your manual it will tell you if a setting applies to a particular battery type.

Once Boost voltage is achieved the battery switches from CC to CV. and setting #10 Battery Boost Charge time begins (some call this absorption) if you have selected either User defined Battery type or lithium in setting #8.

Settings #16-#21 are all for Lead Acid batteries.

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Sik-wit-it said:

Yes I have the 3kw and Lipo4 400ah and I have it on the right setting for battery type didn't know if boost charge was the setting to charge the battery

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Sik-wit-it said:

So it is setting 09 that is the setting I need to go to to setup to charge my battery?

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Mattb4 said:

Good idea to check it that it is at what it should be for your battery type. I have found that sometimes the manual specified settings are not what the unit actually has. Some people have reported that their PV charge current for #36 (for some reason my manual does not list this setting) and max charge current #7 (default is 60a but it can go to 80a which is what you need if want PV set to 80a) is very low.

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Mattb4 said:

If you want to charge from utility (when in AC bypass) at 30a than you set #28 to 30a. If you want it to charge to a max voltage of 28.8vDC that is what you would set for #9. The default with a Lf08 selection (#8) puts it lower at 28.4vDC. I find the 28.4 a better amount for my purposes.


Sorry that it is confusing. It seems rather straightforward to me.

ETA: BTW if you set AC charge at 30a and your max total charge at 80a that than limits your PV to 50a.

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