Could they be speed camera alerts?

I had this same battery failure last week. Arrived home put shopping away, came out to put car in garage and got the stop start fault. Called Nissan/RAC who replaced battery under warranty - RAC guy said that I wouldn't have any issues with the new battery he fitted - RAC011 AGM Varta. Phoned Nissan...

Thanks for the info Dave.
I've bought a pouch of amazon and tested it - seems to work well.

Hi I’m Steve and have bought a 67 plate 1.2 Tekna Qashqai xtronic and so far I’m loving it. I’ve never had a Nissan before. My last couple of cars were Lagunas Mks 2 and 3. Mk 2 was a nightmare everything that could go wrong did, the Mk 3 however was great over the 8 years of my ownership and I was ...