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You need to check the absorption and float voltage specs of the battery and of the converter. If the battery is rated at 14.4 - 14.9 absorption (which most lithiums are), then your converter must be able to output in that range. Same thing goes for the float stage - most lithiums are rated at 13.6v float and your converter would need to be able to accommodate that. On the other hand, you might want to upgrade your converter anyway if it 1] is not a multi-stage converter, and 2] does not provide high amperage charging. The higher the amps during charging, the faster your battery will get fully charged. I have 400ah Battle Borns and a 3000w pure sine inverter with a 125amp charger section and it works great. I also have 1200w of solar on the roof and it all plays together very nicely. Also lithiums do NOT need to be equalized, so you would set that at 14.4v and turn off equalization.
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