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The other part being the recommendations not to always fully charge Lithium batteries. How come you can't configure the device or charger to do this? its 2018 a

by rb808 9y ago

The other part being the recommendations not to always fully charge Lithium batteries. How come you can't configure the device or charger to do this? its 2018 already.

konschubert 9y ago
I could do that on my Thinkpad.
- kpil 9y ago
  I liked that feature, especially so for office "luggables" that stays on the desk charging most of the time. That really seems to spare the battery compared to keeping it at 100%. I've replaced the battery in other laptops much more often.
kawsper 9y ago
Some devices does this, if you are on Linux and are using a Thinkpad, you can fetch tp-smapi-dkms or acpi-call-dkms, and run the following: echo 40 | sudo tee /sys/devices/platform/smapi/BAT0/start_charge_thresh echo 80 | sudo tee /sys/devices/platform/smapi/BAT0/stop_charge_thresh Then it will stop charging once it reached 80% and only start charging when it drops below 40%.
- ssebastianj 9y ago
  I don't know if that it's exclusive on ThinkPads but I love that feature. Now I'm using TLP[0] to re(calibrate) the batteries (main and extra) on a ThinkPad running Linux, it uses "tp-smapi-dkms" or "acpi-call-dkms" behind the scenes. [0] http://linrunner.de/en/tlp/docs/tlp-linux-advanced-power-management.html http://linrunner.de/en/tlp/docs/tlp-linux-advanced-power-man...
Symbiote 9y ago
My Sony ZX1 sometimes pops up a message when I plug it in "Battery saver: your battery will be fully charged in time for your alarm at 07:00" or something like that; I can charge it faster with an option on the message if I want to. It would be nice if this feature defaulted to charging to 95% or whatever. I usually know in advance if I'll need that extra 5% for a long journey.
- jen729w 9y ago
  I believe products already do this. A good few years ago I was asked by a guy why his plugged-in HP laptop was telling him it “wasn’t charging”. I looked up the docs and discovered that between 95-100% it would turn on/off the charging as required. I’ve heard separately (no source, sorry [edit: see below]) that Apple products also do this, they just don’t confuse the user by telling them that it’s happening. I wouldn’t be surprised if HP et. al. have since changed their user notification behaviour, too. Source: forum posts going back almost a decade. https://www.google.com.au/search?q=apple+laptop+stops+charging+95%25&ie=UTF-8&oe=UTF-8&hl=en-au&client=safari https://www.google.com.au/search?q=apple+laptop+stops+chargi...
- Tijdreiziger 9y ago
  Wow, that's a pretty neat feature. I think there are many people who leave their phone to charge during the night, only for it to 'fast charge' up in 1 or 2 hours and then sit at 100% for the rest of the night.
  - Symbiote 9y ago
    Here[1] is the screen. Here, the time isn't based on an alarm (none is set), but on when the charger was disconnected the previous morning. [1] https://i.imgur.com/1EywDA0.png https://i.imgur.com/1EywDA0.png
Dylan16807 9y ago
Devices already don't charge all the way, the "100%" is an arbitrary lower amount. It would be nice if you could set it even lower to prolong life, but there's just not enough demand for it to be a common feature.

by rb808 9y ago

The other part being the recommendations not to always fully charge Lithium batteries. How come you can't configure the device or charger to do this? its 2018 already.

konschubert 9y ago

I could do that on my Thinkpad.

kpil 9y ago
I liked that feature, especially so for office "luggables" that stays on the desk charging most of the time. That really seems to spare the battery compared to keeping it at 100%. I've replaced the battery in other laptops much more often.

kawsper 9y ago

Some devices does this, if you are on Linux and are using a Thinkpad, you can fetch tp-smapi-dkms or acpi-call-dkms, and run the following: echo 40 | sudo tee /sys/devices/platform/smapi/BAT0/start_charge_thresh echo 80 | sudo tee /sys/devices/platform/smapi/BAT0/stop_charge_thresh Then it will stop charging once it reached 80% and only start charging when it drops below 40%.

ssebastianj 9y ago
I don't know if that it's exclusive on ThinkPads but I love that feature. Now I'm using TLP[0] to re(calibrate) the batteries (main and extra) on a ThinkPad running Linux, it uses "tp-smapi-dkms" or "acpi-call-dkms" behind the scenes. [0] http://linrunner.de/en/tlp/docs/tlp-linux-advanced-power-management.html http://linrunner.de/en/tlp/docs/tlp-linux-advanced-power-man...

Symbiote 9y ago

My Sony ZX1 sometimes pops up a message when I plug it in "Battery saver: your battery will be fully charged in time for your alarm at 07:00" or something like that; I can charge it faster with an option on the message if I want to. It would be nice if this feature defaulted to charging to 95% or whatever. I usually know in advance if I'll need that extra 5% for a long journey.

jen729w 9y ago
I believe products already do this. A good few years ago I was asked by a guy why his plugged-in HP laptop was telling him it “wasn’t charging”. I looked up the docs and discovered that between 95-100% it would turn on/off the charging as required. I’ve heard separately (no source, sorry [edit: see below]) that Apple products also do this, they just don’t confuse the user by telling them that it’s happening. I wouldn’t be surprised if HP et. al. have since changed their user notification behaviour, too. Source: forum posts going back almost a decade. https://www.google.com.au/search?q=apple+laptop+stops+charging+95%25&ie=UTF-8&oe=UTF-8&hl=en-au&client=safari https://www.google.com.au/search?q=apple+laptop+stops+chargi...
Tijdreiziger 9y ago
Wow, that's a pretty neat feature. I think there are many people who leave their phone to charge during the night, only for it to 'fast charge' up in 1 or 2 hours and then sit at 100% for the rest of the night.
- Symbiote 9y ago
  Here[1] is the screen. Here, the time isn't based on an alarm (none is set), but on when the charger was disconnected the previous morning. [1] https://i.imgur.com/1EywDA0.png https://i.imgur.com/1EywDA0.png

Dylan16807 9y ago

Devices already don't charge all the way, the "100%" is an arbitrary lower amount. It would be nice if you could set it even lower to prolong life, but there's just not enough demand for it to be a common feature.