SOL-I-AX-5P batteries not charging fully.

[ChrisVo]

I have a inverter model SOL-I-AX-5P.

With the continuous rain the batteries are not charging fully.

What setting do I need to change to get the batteries fully charged from the utility 

I have two lithium batteries linked

[Wilfred]

What are your settings currently? The only setting to charge from Utility that you can change that makes a difference is setting 11.

what loads are running while you want to charge batteries? Do you have something that tell you how full the batteries are charged? 

[Coulomb]

I'm away from keyboard at present, but you need to temporarily enable utility charging (setting 16 from memory, charge source priority). Also choose a value for setting 11 (max utility charging, battery amps) as already mentioned.

But your model needs to be in line (bypass) mode for utility charging to be possible, so choose settings 12 (back to utility) and 13 (back to battery) so utility will charge the battery and run losds when the battery voltage goes low enough, and stops using utility when the battery voltage goes high enough.