**I am not asking *how* the battery gets damaged**, because [that answer is straightfoward](http://www.reddit.com/r/askscience/comments/1ty6m1/do_fast_chargers_damage_the_devices_they_charge/ceczkuc).  

What I am asking is *why lithium-ion chargers allow batteries to be damaged by excessive charge current* in the first place.  My understanding is that all lithium-ion chargers already support current limiting features in response to battery temperature (e.g. as part of "JEITA compliance"):

[![JEITA guidelines for charging Li-ion batteries in single-cell handheld applications](https://i.sstatic.net/MmS9s.png)](http://www.ti.com/lit/an/slyt365/slyt365.pdf)

So why don't the chargers also enforce the maximum charge current, regardless of the wattage of the input power supply?

**UPDATE**

Putting the question a bit better: considering the huge number of handheld devices that integrate the charger and the battery, why don't charger ICs offer the ability to set a maximum charge current to be enforced?  Why don't device manufacturers want to protect their batteries in this way?

[![current vs lifetime](https://i.sstatic.net/D1AMt.jpg)](http://batteryuniversity.com/learn/article/ultra_fast_chargers)