Solved What does caution Battery critically LOW! mean?

Acer / Aspire 5738-6969
August 25, 2016 at 13:43:22
Specs: Windows 7, SP1, 4 GB
My Aspire 5738 has been thru a lot! I believe, now it is Free of all Malwares. Tried to restore it to the last HEALTHY RESTORE POINT. This Aspire was kept unplugged for about 10 days in a row. I HAVE PLUGGED BACK TO FULLY CHARGE THE BATTERY which is OEM!!!

Will it boost from critically low to a better workable status? It is about 3 years old . . . .


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#1
August 25, 2016 at 13:50:41
✔ Best Answer
Providing the charger/mains adapter is OK - producing the correct volts and current, the it ought to charge the battery. It may take a little while to fully charge; which is pretty normal/standard.

There are some guru who advocate running down a laptop battery to dead flat; and then recharging. Similar advise too for iDevices, tablets various and other phones.

Incidentally does the laptop work - without the battery installed? It ought to - if the charger/mains adapter is OK.

Being an Aspire you may have to prop up the case a little in one area, as the battery when installed usually provides one of the "feet" on the base.

And to answer your post header question:

What Does Caution Battery Critically LOW! Mean?

It means just that. The system is designed to warn you when the battery is low; and logically ought to be recharged. This will definitely happen if running on battery only - for obvious reasons... If the charger unit/mains adapter is connected and powered up then the battery will charge up whilst you use the laptop; and it will take a wee while.

message edited by trvlr


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#2
September 3, 2016 at 13:18:30
Attn: trvlr August 25, 2016 at 13:50:41

You R absolutely RIGHT! Also many Thanks for a Detailed Answer. I knew my charger unit/mains adapter is in great shape. Whenever I used to Turn ON Aspire 5738, the very first caution, Battery Critically Low . . . would appear on the top of screen and laptop would Turn OFF. Actually, I never tried to pull out the battery and Turn it On. I just plugged in mains adapter and turned on the Surge Protector that supplies power to some peripherals too.

NOW IT IS FULLY CHARGED. You gave me the Best Answer!!!

message edited by Hindamar


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#3
September 3, 2016 at 15:53:09
> There are some guru who advocate running down a laptop battery to dead flat; and then recharging.

Those are users who heard something without even first learning various battery technologies. NiCd batteries sometimes needed that to eliminate an internal 'memory' problem. Latest versions of NiCds no longer needed that.

Meanwhile, that same strategy for Lithium only reduces life expectancy significantly. Latest technology Lithiums are good for maybe 600 full discharges. And for thousands (or more) of partial discharges.

Generally it may be better to discharge a lithium by 10% before recharging. However a computer that only controls and monitors a battery charge may already make that precaution unnecessary.


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Related Solutions

#4
September 9, 2016 at 16:08:22
#3
westom September 3, 2016 at 15:53:09

I DO ADMIRE UR KNOWLEDGE OF BATTERY TECHNOLOGIES! I believe few people may be knowing so much about them.
Can U please suggest me a website(s) OR email me a link to know Battery Technology?

Hindamar

message edited by Hindamar


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#5
September 9, 2016 at 16:51:04
"Can U please suggest me a website(s) OR email me a link to know Battery Technology?"

http://batteryuniversity.com/learn/

"Channeling the spirit of jboy..."


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#6
September 9, 2016 at 17:09:04
#5
T-R-A September 9, 2016 at 16:51:04

Thanks-A-Lot!

Hindamar

message edited by Hindamar


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#7
September 10, 2016 at 07:21:44
Very useful info re' current battery technology. Many thanks

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#8
September 11, 2016 at 07:09:13
Not a problem....just remember that Cadex (who hosts the info) makes battery testing equipment---thus if some of the info is skewed in their favor, it's by design....

"Channeling the spirit of jboy..."


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