Hi @Eugene - thanks for getting back to me.
I have it set at ‘Three Kilometres’ today and my battery is down to 46% with little use of my phone. (My usual battery without this function operating leaves me at around 70-80% on average per day.)
I have been experimenting with the different accuracy settings to establish the difference, and although ‘Three Kilometres’ has improved my battery drain, it is clear this is still having a considerable negative impact on my battery. For example/reference, the most accurate setting did reduce my battery to below 30% for an average day.
I am using the iPhone 8 plus with the latest iPhone software. If you are familiar with the iOS software, i have included some of my battery stats for your review.
thanks for your help on this.