You are too humble bro., yeap it is not accurate simply because there are resistance in the circuit. Hence it is crucial that readings are measured directly from the source.

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Initially I was keen to find out every vehicle that was scoring 5 years in battery life span, then I learnt that is actually dependant on the owners themselves if they really want to learn how to safe on batteries and practice what is taught or just continue with their driving method while hoping for the best.

Here the update on my client's Exora Turbo whose previous battery use to last 8 months. After they stop leaving their car in idle and with the aircon on for their dog, the battery capacity has improved tremendously however there are a few things that I am still unsatisfied about and I have to figure out what is wrong. The only downside to their Exora is that the previous battery resellers had cut off both original terminal and replaced that with after market ones, which I seriously do not like.