I bought a 512 plus rear camera four days ago, hardwired by Halfords. Latest firmware (22.5), so issues with rear cam previously known hopefully avoided. Long story short, now on my second 512, Halfords and Nextbase support deeming the first one faulty. Second one not holding its charge because parking mode (for which I bought this model) was being triggered throughout the night. I live in a very quiet area. Viewing the recordings shows no activity (no passing cars or pedestrians). Thus the battery was drained by the morning. Halfords had told me to turn down the G sensor sensitivity as the 512 is known to be too sensitive (subsequently confirmed by Nextbase advisor), but this was pointless advice because, Nextbase advisor told me, there are two G sensors in the 512, one for triggering a protected file when in recording mode (e.g. a crash or pothole) and one for triggering a protected file in parking mode. The setting on the camera which enables changing the sensitivity of the G sensor relates only to the first G sensor and has no effect on the parking mode G sensor, which cannot be modified by the user. The advice from Nextbase was to turn off parking mode! That's one of the main reasons I bought the thing. He also said that to get over the draining of the battery I would need to bring the dashcam into the house regularly to charge it properly, as the car will take a long time to give it a full charge. No, I'm not prepared to do all that faffing about. He said the longer term solution was for Nextbase to produce a firmware fix, but that they were discontinuing the "1" series soon (312, 412, 512 etc), so they might not see the fix as a priority. I also pointed out that the camera was running for 1 minute after a protected file has recorded then shutting down, not 10 seconds as the manual says (I have auto shutdown set at 10 seconds). The Nextbase chap checked this at his end and said "you're right: we didn't know that. We'll have to put that in the next firmware update".
All in all, a shambles. I will give this camera two more nights to see if the above was a fluke then get it uninstalled by Halfords and a refund. Not impressed so far.