Freelander 2 Battery Change

Hi, I’m new to the forum and wonder if anyone could help me out, I’ve recently changed the the battery on my 2014 Freelander, but since changing it I’ve got a problem with the eco stop start system, when I first put the ignition on I’ve got a warning light on the dash to say (eco system fault), the light on the eco switch itself doesn’t light up, and the stop/ start doesn’t function! Anyone got any experience of this, and is there an easy fix?

The smart charging system needs recalibration, which needs a diagnostic tool to do.
Unfortunately stop/start systems aren't so easy to do simple stuff on, like changing the battery.

If you drive it as normal it should realise/learn the battery is newer than before, and sort itself out, after a number of natural drive cycles.