This is a Dell 3531, 7 years old.
There are diagnostics available at startup, by pressing F12. These show
the 'battery health' at 87%, which I think means that the capacity is
87% of what it would have been new. It also shows the battery and
charger as healthy.
However, when plugged in, the charging system only charges the battery
up to 61%. Then, it switches the charger status from 'charging' to idle.
So, to be clear: I disconnect the charger and run some diagnostics.
Then I plug the charger in, and it shows charging until it reaches 61%,
then switches to idle.
Any idea what's going on?
I did think of running diagnostics with the charger disconnected until
the battery runs right down. Is that a good idea?
On 13/08/2021 09:32, GB wrote:
This is a Dell 3531, 7 years old.
There are diagnostics available at startup, by pressing F12. These
show the 'battery health' at 87%, which I think means that the
capacity is 87% of what it would have been new. It also shows the
battery and charger as healthy.
However, when plugged in, the charging system only charges the battery
up to 61%. Then, it switches the charger status from 'charging' to
idle. So, to be clear: I disconnect the charger and run some
diagnostics. Then I plug the charger in, and it shows charging until
it reaches 61%, then switches to idle.
Any idea what's going on?
I did think of running diagnostics with the charger disconnected until
the battery runs right down. Is that a good idea?
I CBA'd to check on that model but any chance it has - and has enabled -
the "Desktop Mode" which stops the battery being charged to 100%?
On 13/08/2021 10:27, Robin wrote:
On 13/08/2021 09:32, GB wrote:Hi. Thanks for the suggestion, but battery saver is not on. In any case,
This is a Dell 3531, 7 years old.
There are diagnostics available at startup, by pressing F12. These
show the 'battery health' at 87%, which I think means that the
capacity is 87% of what it would have been new. It also shows the
battery and charger as healthy.
However, when plugged in, the charging system only charges the
battery up to 61%. Then, it switches the charger status from
'charging' to idle. So, to be clear: I disconnect the charger and
run some diagnostics. Then I plug the charger in, and it shows
charging until it reaches 61%, then switches to idle.
Any idea what's going on?
I did think of running diagnostics with the charger disconnected
until the battery runs right down. Is that a good idea?
I CBA'd to check on that model but any chance it has - and has enabled
- the "Desktop Mode" which stops the battery being charged to 100%?
the diagnostics don't run under windows.
On 13/08/2021 12:09, GB wrote:
On 13/08/2021 10:27, Robin wrote:
On 13/08/2021 09:32, GB wrote:Hi. Thanks for the suggestion, but battery saver is not on. In any
This is a Dell 3531, 7 years old.
There are diagnostics available at startup, by pressing F12. These
show the 'battery health' at 87%, which I think means that the
capacity is 87% of what it would have been new. It also shows the
battery and charger as healthy.
However, when plugged in, the charging system only charges the
battery up to 61%. Then, it switches the charger status from
'charging' to idle. So, to be clear: I disconnect the charger and
run some diagnostics. Then I plug the charger in, and it shows
charging until it reaches 61%, then switches to idle.
Any idea what's going on?
I did think of running diagnostics with the charger disconnected
until the battery runs right down. Is that a good idea?
I CBA'd to check on that model but any chance it has - and has
enabled - the "Desktop Mode" which stops the battery being charged to
100%?
case, the diagnostics don't run under windows.
"Desktop mode" may well have been the wrong term as the setting I recall
was not in Windows but in the BIOS power management options where you
could set battery charging levels. But none of thems was a 3531.
On 13/08/2021 12:09, GB wrote:
On 13/08/2021 10:27, Robin wrote:
On 13/08/2021 09:32, GB wrote:Hi. Thanks for the suggestion, but battery saver is not on. In any
This is a Dell 3531, 7 years old.
There are diagnostics available at startup, by pressing F12. These
show the 'battery health' at 87%, which I think means that the
capacity is 87% of what it would have been new. It also shows the
battery and charger as healthy.
However, when plugged in, the charging system only charges the
battery up to 61%. Then, it switches the charger status from
'charging' to idle. So, to be clear: I disconnect the charger and
run some diagnostics. Then I plug the charger in, and it shows
charging until it reaches 61%, then switches to idle.
Any idea what's going on?
I did think of running diagnostics with the charger disconnected
until the battery runs right down. Is that a good idea?
I CBA'd to check on that model but any chance it has - and has
enabled - the "Desktop Mode" which stops the battery being charged to
100%?
case, the diagnostics don't run under windows.
"Desktop mode" may well have been the wrong term as the setting I recall
was not in Windows but in the BIOS power management options where you
could set battery charging levels. But none of thems was a 3531.
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