That site has great information. Some of the articles are confusing because they cover so many different types of batteries. There are many types of Lithium Ion, does anybody know which one the Turbo uses? According to BU-205a of Battery University, most mobile phones and laptops use Lithium Cobalt Oxide (LCO). I want to know if Qualcomm and UL, the company that tested and certified it, have done anything to prevent reduced capacity and faster discharging after a long period of turbo/quick charging.
Battery University states: "
An ultra-fast charger can be compared to a high-speed train that is capable to travel 300km per hour (188 mph) on a track built for it. The tracks, and not the machinery, govern the maximum speed. Adding power to a charger is relatively simple; the intelligence lies in assessing the condition of the battery and applying the right amount of maximum charge. A properly designed ultra-fast charger will lower the current when certain conditions occur. In essence, only newer batteries can be ultra-fast charged.
Do not ultra-fast charge batteries if possible and charge at a more moderate rate of 1C or less. (A maker of the 18650 Li-ion recommends 0.7C.) Makers of electric cars prefer if EV owners charge at an eight-hour or 16-hour charge, both of which are below 1C. The 30-minute charge with a three-phase 440V outlet charges the battery at above 1C and this method should only be used if no other option exists (1C is the current rating of a battery. A 1C charge or discharge of a battery rated at 1Ah is 1A.)
Figure 1 compares the cycle life of a lithium-ion battery when charged and discharged at 1C, 2C and 3C. A 1C charge and discharge cycle causes the capacity drop from 650mAh to 550mAh after 500 cycles, reflecting a decrease to 84 percent. A 2C accelerates capacity fade to 310mAh, representing a decrease to 47 percent, and with 3C the battery fails after only 360 cycles with 26 percent remaining capacity."
I sent an email to UL asking them what they thought were the long term effects, if any, of frequently using Qualcomm's Quick Charge 2.0 feature in their new chipsets. Maybe Qualcomm relies on hope that people will upgrade their device before it shows significant signs of depreciation.
Maybe the Turbo charger really should only be used when absolutely necessary and don't have the time to slow charge.
Edit: A good article pertaining to Quick Charge 2.0:
Qualcomm's Quick Charge 2.0 technology explained