Is my battery math correct?

[kingofbanff]

The integral controllers in the inverters, are most likely, AC chargers, from your genset. They are not Solar PV MPPT charge controllers.
Morningstar and Midnight make very good MPPT controllers, Outback also makes MPPT controllers, but I have no experience with them.

You will also need Solar PV combiners, and disconnects and you likely have overbought too many PV panels, and may be able to sell the panels to purchase the charge controllers.

This is from Outback "The FM80 is the latest innovation in Maximum Power Point Tracking (MPPT) charge controllers from OutBack Power Systems. The FLEXmax 80’s innovative MPPT algorithm is both continuous and active, increasing your renewable energy yield up to 30%. Thanks to enhanced cooling, the FLEXmax 80 can operate at its full 80 amp maximum current rating in ambient temperatures as high as 104°F (40°C).

Included in the FLEXmax 80 are all of the features first developed by OutBack Power in the revolutionary MX60, such as support for a wide range of nominal battery voltages and the ability to step-down a high voltage solar array to recharge a low voltage battery."

My system has three of these.

[Mike90250]

This is from Outback "The FM80 is the latest innovation in Maximum Power Point Tracking (MPPT) charge controllers from OutBack Power Systems. The FLEXmax 80’s innovative MPPT algorithm is both continuous and active, increasing your renewable energy yield up to 30%. Thanks to enhanced cooling, the FLEXmax 80 can operate at its full 80 amp maximum current rating in ambient temperatures as high as 104°F (40°C).

Included in the FLEXmax 80 are all of the features first developed by OutBack Power in the revolutionary MX60, such as support for a wide range of nominal battery voltages and the ability to step-down a high voltage solar array to recharge a low voltage battery."

My system has three of these.

OK, now there are model #'s. Those will work with PV.

[kingofbanff]

I found this sheet. Am I reading it correctly that the max is C/4? (

[Sunking]

Where are you picking up C/4? All I see is characteristics. I might be overlooking something.

[kingofbanff]

Oops. Part of my post got cut off. In the bulk charge stage it suggests that the maximum is 25 A per 100 amp hour.

[Sunking]

Yep, that is C/4

[kingofbanff]

I emailed FullRiver and they confirmed C4 is fine. In fact according to this chart they sent C/3 is the maximum.