Just a few minutes ago, B Diamond refused to self-start. The battery voltage was initially 12 V, but gradually went down to 10 V. But, it showed the correct time. Locking, unlocking the doors and other accessories worked well. Jump-started using my son's i20 and went round the home for about 15 minutes. Now, the battery voltage improved to 13.7 V. I have to repeat the exercise on every other day to keep B Diamond physically fit.