As a follow-up to the extended battery scam post, I tested the original battery of the HTC Evo 3D (rated at 1730mAh) with the Computerized Battery Analyzer. I used the same testing methodology as before, and here are the results:
The result showed a battery capacity of 1508mAh. This is 87% of its rated capacity. For a 5 month old battery, the result is acceptable. It is holding its charge reasonably well, losing capacity (also known as “aging”) at an average rate of 2.6% per month.
Let’s compare this result against the two test runs for the Trexcell 3500 extended battery:
The official standard battery outperformed the Trexcell extended battery in every way. The starting voltage was higher at 4.24V instead of around 4.08V. The capacity was 82% higher, and the discharge was quite constant. Unlike the Trexcell, there was no sudden dip near the end which could catch users by surprise.
So the result is clear. Don’t waste money and time on third-party extended batteries. Whatever savings you think you’re getting is simply wishful thinking.
You might pay a bit more for official batteries, but you know you’re getting a quality product that delivers on its promises.