I am not asking how the battery gets damaged, because that answer is straightfoward.

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"):

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 http://www.batteryuniversity.com/_img/content/ultra_fast_chart.jpg

I am not asking how the battery gets damaged, because that answer is straightfoward.

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"):

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?

I am not asking how the battery gets damaged, because that answer is straightfoward.

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"):

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

I am not asking how the battery gets damaged, because that answer is straightfoward.

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"):

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 http://www.batteryuniversity.com/_img/content/ultra_fast_chart.jpg