If you guys want to know how much energy is added to the battery bank you can calculate it if you have an A-Hr meter reading result and if you measure the battery voltage (unloaded) before and after the A-Hr charge period.
The change in energy (in joules) is equal to the change in battery voltage times the change in A-Hr reading times (3600 seconds/1 Hour).
Or, if you have a Watt-Hour meter, just multiply that result by (3600 seconds/1 Hour).
The energy number gives you the best performance indicator that you will ever get...
:)