howtogeek at August 6th, 2013 06:41 — #1
Originally published at: http://www.howtogeek.com/169669/debunking-battery-life-myths-for-mobile-phones-tablets-and-laptops/
Batteries need to be cared for properly — they’re a critical part of our mobile devices and battery technology hasn’t advanced as fast as other technologies. Unfortunately, there’s a lot of incorrect information about batteries out there.
greeneyedsouls at August 6th, 2013 09:09 — #2
The problem with leaving the laptop plugged in all the time... The battery will wear off a lot faster. At least 3-4 friends and a lot of other people I know around, inclusing myself, have done this mistake. Brand new batteries, laptops just bought. Out of laziness and getting used to leave the battery plugged in, considering "it's not charging anymore if it reached 100%" they were simply using their laptops like that plugged in all the time. Well, those batteries die after less than a year.
Use a battery correctly, as in charge it, remove the plug, recharge it, remove the plug, and so on, makes the battery still work even after 3 years.
marcycn at August 6th, 2013 10:30 — #3
I always keep my batteries in the freezer and I feel I get full use of them when put in use.
nsdcars5 at August 6th, 2013 11:38 — #4
What are you talking about? I always keep my 2010 netbook charging when I use it, and the battery amount hasn't decreased by more than 15 minutes.
ladyfitzgerald at August 6th, 2013 12:47 — #5
When I use my notebook, it's almost always connected to the AC. What I love about the Lenovo G570 is it has its own battery management program that can be set to maintain a battery charge of only around 50% to help prevent premature battery degradation. I let it charge to 100% if I anticipate I may be using it without AC.
bedlamb at August 6th, 2013 14:04 — #6
My Fujitsu A1120 laptop has been in regular use since '08, and if there has been any battery degradation, it has been little enough to be unnoticeable. It's rare that I use it on battery power. It's generally plugged in, and unplugged about once a month, to discharge to 70%, then plugged back in.
My dad used to store spare batteries in the freezer. In those days, they would have been alkaline. I don't know if the science crosses to ni-cad or lithium batteries, but I think I'd go with, "Couldn't hurt".
michael0830 at August 6th, 2013 15:19 — #7
What about doing a "Full recharge" from a Battery Doctor app on iPhone and iPad? It says to periodically run the battery down to ~10-15%, call up the app and run a full charge cycle. I do it once a month. Good idea, or bogus? In other words, do repeated, daily partial recharges shorten battery life?
quokka at August 6th, 2013 21:07 — #9
Good article. I have actually done a lot of research into LiPo batteries for a project I am working on and discovered all this myself. The big surprise for me was that batteries should be stored at half charge or less - the opposite to SLA and NiCd!
d3343 at August 7th, 2013 10:20 — #10
If a battery's life is measured in charge-discharge cycles, it would seem that the thing to do is to plug in the device when one can, so as to minimize the number of those cycles. I do that with laptops, trusting the circuitry to not overcharge (Lenovo seems to have particularly intelligent charge management) and have gotten years of life out of my batteries.
abuda_james at August 7th, 2013 22:16 — #11
This is what I am looking for, how to use or take care my gadget battery. I used to discharge my phone to 0%, but when I read the article, I am wrong. Thanks for the information .
jordy1955 at September 18th, 2013 04:20 — #12
So, Does it matter if I don't fully re-charge my phone before removing the charger. eg putting the phone on charge whilst in the car and then removing it when you get to your destination but the battery isn't full yet? tia
bgowaski at September 30th, 2013 18:02 — #13
There are many new ways of charging your phone on-the-go via cases or portable chargers. Being so new to the market are these charging methods safe for your phone battery? Will a charging case cause the battery to overheat to much?
flo_mar at January 16th, 2014 03:44 — #14
Hopefully, your device will be due for an upgrade by the time its battery dies.
I would suggest differently: Only buy devices where the battery is easily replaceble and a new battery is readily/cheaply available. On my thinkpad x200 i'm on my third battery after over 5y of usage.
Don't throw away your devices just because the battery goes weak!
wilsontp at January 16th, 2014 11:33 — #15
Same here. My 2 year old netbook gets used every day, and it still gets at least 3 hours on a charge. Since LiPo batteries have a useful life span of maybe 3 years to begin with, I'm absolutely fine with the state of my batteries.
My Dell laptop has a nice feature: it charges the battery once after being plugged in, then stops charging it. It will only fully charge the battery maybe once a month or so.
@greeneyedsouls, the problem with you and your friends is probably just due to heat-based breakdown of the cells, not overcharging.
wilsontp at January 16th, 2014 11:40 — #16
Actually, that's better for your batteries. the longest-life scenario is to charge our battery to about 85%. That should put the cell voltage at around 4.0v. Charging the cell above 4.0v actually wears your cells out faster.
If you really want to learn how to treat LiPo batteries, go read some RC forums. Electric RC cars and planes have switched almost entirely to lithium chemistry, rather than nickel batteries. Since RC guys have to use generic chargers (the chargers aren't matched to the batteries like they are in cell phones and computers), they have to spend time learning how to properly charge and maintain their cells.
In fact, I had to take a training class from my model airplane club before I could use the club's airfield, due to the danger of fire if you mistreat a LiPo.
wilsontp at January 16th, 2014 11:43 — #17
Not really, Other than with NiCd batteries, this has never been a problem with rechargable batteries. In fact, daily charging is the best way to manage your battery.
And that "deep discharge" app? Kill it with fire. That's the best way to ruin an LiPo cell.
tony1 at July 16th, 2014 00:35 — #18
OMG my tablet has lithium ion and its suppose to let me no when it get to 20% and plug in but it for some reason did not do it and went completely all the way down and told me to plug in and shut off. did it ruin it omg i'm freaking out here.
wilsontp at July 16th, 2014 00:56 — #19
Don't freak out. It's probably not a problem. Just let it charge back up, and you should be fine. The battery gauges on all devices can get a little out of calibration once in a while, so you should actually run your device down to zero once in a while (no more than once a month) just to keep the battery gauge in sync.
tony1 at July 16th, 2014 01:22 — #20
thanks maybe thats what it was i charged it like it said when i first got it, but it was suppose to take like 4 hours and it charged in like 1 hour, and then i watched a movie or two and charged it the next day as it was at lke 20%, and today this happens it went all the way to Zero almost before it prompted me. so maybe the gauge was not correct and it was like 20% like it was suppose to be for warning you. could this be what happened? because of the initial charge was like not at all what it was suppose to take.i have only had it like 4 days.
wilsontp at July 16th, 2014 11:15 — #21
Don't worry about the initial charge time; as long as you charged it full, it doesn't matter how long it took. A full charge from zero will probably take 4 hours, but most devices ship with the battery about 3/4 charged, so it should only take an hour or so.
If you don't think the battery is lasting as long as it should (at least 4 hours in use), you may try to exchange it for a new one... but no, I don't think you damaged anything.
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