Laptops Keeping laptop on 24x7
- Thread starter avi
- Start date
If it is always connected and charged through an AC outlet, definitely yes. Your battery will die soon enough. You should either follow the charge-discharge cycles (allow charging up to 100%, then disconnect and let the battery drain to 10-15% and charge again) or you should remove the battery completely and allow the laptop to work directly through an AC outlet (connect it to an UPS to prevent data loss).
I think so. But many batteries come with some sort of overcharge protection, although I do not know how efficient they are. I used to keep my previous laptop on 24x7, connected always to the charger. Occasionally, I used to discharge it to 6%. Even so, within a year the battery went kaput, and I had to replace it.
If your laptop is a Dell, there is an option to enable "stop charging battery until next restart". That might be useful. Not sure if other brands also have that option.
If your laptop is a Dell, there is an option to enable "stop charging battery until next restart". That might be useful. Not sure if other brands also have that option.
If its Dell then you dont need to worry about the battery overcharge.
I used my Inspiron 1520 always on AC and its 9 cell battery still provides 15 mins backup (its been 5 years).
AFAIK Laptop battery life is depend on the charge cycle which is ~300 cycle so more you use it more the chances of failing.
I used my Inspiron 1520 always on AC and its 9 cell battery still provides 15 mins backup (its been 5 years).
AFAIK Laptop battery life is depend on the charge cycle which is ~300 cycle so more you use it more the chances of failing.
#[member='avi'] Right click on the battery icon and click on Dell Battery Meter. You should find the option to "Turn off battery charging"
#[member='logistopath']
Wrong, chargers have in built mechanism to stop overcharging after the battery is full, not batteries. Chargers without such mechanisms no more exist.
#[member='avi']
The back up is less considering 9 cell battery. My mate's vaio 6 cell battery gives 2 hrs after more than 2 yrs.
btw what's the battery wear now?
I too did that once but never understood technically how the hell that helps.
mehrotra.akash
Contributor
a) No, keeping your laptop will NOT have any negative effect on your battery
b ) Keeping the battery on 100% all the time WILL have a negative effect
c) what #[member='logistopath'] suggested about the 100%-15% cycling is the worst thing you can do to a battery, and that is why his battery died in just a year
d) #[member='avi'] , set your battery to start charging at 30-40% and stop at 80%. the battery will be effective as a UPS but not go bad quickly either
e) draining a lithium battery completely is suicidal
f) If removing it, dont store it at 100% charge. store it at 40% or so and top it up every month or so
g) #[member='JuGGa'] , it helps because Lithium batteries dont like staying charged 100% for long periods of time. I dont remember the actual scientific reason behind it
h) The primary lifecycle indicator for a battery is cycle count. Most batteries last atleast 300 cycles. If you're lucky they will last 1000+ cycles.
Not keeping your battery at 100% all the time and not doing deep frequent cycling are secondary
b ) Keeping the battery on 100% all the time WILL have a negative effect
c) what #[member='logistopath'] suggested about the 100%-15% cycling is the worst thing you can do to a battery, and that is why his battery died in just a year
d) #[member='avi'] , set your battery to start charging at 30-40% and stop at 80%. the battery will be effective as a UPS but not go bad quickly either
e) draining a lithium battery completely is suicidal
f) If removing it, dont store it at 100% charge. store it at 40% or so and top it up every month or so
g) #[member='JuGGa'] , it helps because Lithium batteries dont like staying charged 100% for long periods of time. I dont remember the actual scientific reason behind it
h) The primary lifecycle indicator for a battery is cycle count. Most batteries last atleast 300 cycles. If you're lucky they will last 1000+ cycles.
Not keeping your battery at 100% all the time and not doing deep frequent cycling are secondary
#[member='mehrotra.akash']
100% charge should be avoided when you are keeping the battery idle.How will it affect otherwise? Sony says it will increase the charge cycle. I don't get that how.
mehrotra.akash
Contributor
#[member='mehrotra.akash']
100% charge should be avoided when you are keeping the battery idle.How will it affect otherwise? Sony says it will increase the charge cycle. I don't get that how.
Adaptor plugged in + no power failure -> idle battery at 100% -> reduced battery life
This is what lenovo says:
Would advise you use similar settings if you dont need the battery very often, and charge to 100% when you actually need it (if your outings are planned)
mehrotra.akash
Contributor
This is what lenovo's settings screen looks like
Better remove the battery, buddy.
Stick to charging when ~10% and start discharging when at ~90/100%
Dont let it go to 0%.
If you plan to store it, charge completely, then store it.
Stick to charging when ~10% and start discharging when at ~90/100%
Dont let it go to 0%.
If you plan to store it, charge completely, then store it.
djmykey
Forerunner
Im using a Dell Mini 1012 since 2 years. Have discharged it only 10 times maybe in this whole time. I still get 2 hrs backup when I remove the charger. So not sure what to trust now.
Also yes, this is my download machine for the last 2 years but only from 9PM to 9AM. Rest if the time its turned off.
Also yes, this is my download machine for the last 2 years but only from 9PM to 9AM. Rest if the time its turned off.
Bhutoria_1989
Contributor
I have a Sony Vaio VPCEB14EN and I keep my Laptop Plugged in all the time. Can someone please tell where is the Battery Maintenance Settings Located To set Start & Stop Charging Limits as indicated by #[member='mehrotra.akash'] in his screenshot.
#[member='djmykey'] True that.. All this info is confusing. In my personal experience, continuously in charger degrades battery life. Not sure which is the appropriate method to cycle charges now.
#[member='mehrotra.akash'] I had left my laptop continuously on AC, which is why my battery died. The 100% to 15% cycle I suggested was what was mentioned in some forums, when I was searching why my laptop battery gave up so soon. Now, I don't know if 100 - 15% is okay or 80 - 40% is okay.
#[member='mehrotra.akash'] I had left my laptop continuously on AC, which is why my battery died. The 100% to 15% cycle I suggested was what was mentioned in some forums, when I was searching why my laptop battery gave up so soon. Now, I don't know if 100 - 15% is okay or 80 - 40% is okay.
mehrotra.akash
Contributor
Are you saying they he should disconnect the laptop when at 100% and start charging again when at 10%
Read points 3-5
if you are planning to store it, do so at 40-50% and not 100%
Yup, you discharged it about 10 times, and probably had a good quality battery, which is what saved it. Probably would have been slightly better if you hadnt kept it at 100% the entire time
This is a lenovo utility, so I guess you could search for a VAIO power manager or something?
#[member='djmykey'] True that.. All this info is confusing. In my personal experience, continuously in charger degrades battery life. Not sure which is the appropriate method to cycle charges now.
#[member='mehrotra.akash'] I had left my laptop continuously on AC, which is why my battery died. The 100% to 15% cycle I suggested was what was mentioned in some forums, when I was searching why my laptop battery gave up so soon. Now, I don't know if 100 - 15% is okay or 80 - 40% is okay.
80-40 is always better than 100-15%
Also, the charge-discharge cycle will kill the battery. The 80-40 system I told will charge the battery till 80%, run on AC power
Then if you remove AC power for some time and it goes down to 60%, and you reconnect AC, charging will not start again. So, battery remains idle a lot of the time
in the 100-15 cycle you mentioned earlier, the battery is always being discharged or charged
http://batteryuniver...based_batteries
Look at Table 2