The myth of the "high capacity" batteries

ID: 95930

Description: iFixit seems to be the place people turn to for...

Steps:

  1. Here is the side-by-side of a Gold High Capacity and a standard run-of-the-mill iPhone 5 battery
  2. Checking the weight for the Gold battery it was at 0.830oz
  3. The standard battery weight 0.848oz.
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  4. Width of the Gold Battery is 32.01 mm vs. 31.5 mm for the standard battery
  5. Length of the Gold Battery is 91.72 mm vs. 90.30 mm for the standard battery
  6. Thickness of the Gold Battery is 3.86 mm vs. 4.04 mm for the standard battery.
  7. Expectation was that the Gold Battery would show difference in physical attributes that would be significant to its claimed increased capacity, which it did not
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  8. Gold Battery is fully charged at 4.85 V on an K9201 Fast Battery Charger Activation Circuit Tester
  9. Standard battery is fully charged at 4.85 V on an K9201 Fast Battery Charger Activation Circuit Tester
  10. For this test a battery connector was simply soldered to a prototype board and wires were soldered to the positive and negative connectors on the board.
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  11. The prototype board was then connected to the EBD Constant Current Electronic Load capacity tester. Shown here with the standard battery connected
  12. Same connection is made with the Gold Battery (test in progress)
  13. Here is the result for the standard battery
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  14. Here is the result for the Gold Battery.
  15. Here is the synapse of the test results Standard Battery Title:EB Tester Software Mode:D-CC (Constant Current Discharging) 0.50A 2.90V Begin Volt:4.189V Cutoff Volt:2.904V Capacity:1353mAh Energy:4987mWh Avg Volt:3.69V Total time to reach the cutoff voltage of 2.9V was 2:42:44hours
  16. Gold battery. Title:EB Tester Software Mode:D-CC (Constant Current Discharging) 0.50A 2.90V Begin Volt:4.182V Cutoff Volt:2.904V Capacity:1376mAh Energy:4969mWh Avg Volt:3.61V Total time to reach the cutoff voltage of 2.9V was 2:45:33hours
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