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| Thread ID: 103580 | 2009-09-28 20:42:00 | question about leaving laptop charger plugged in after shutdown | nedkelly (9059) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 814929 | 2009-09-28 20:42:00 | Hey somewhere my mate got into his head that if you leave your charger plugged into your laptop after shutdown and after you turn it off at the wall it actually takes charge away from the laptop battery. Is this true? |
nedkelly (9059) | ||
| 814930 | 2009-09-28 21:52:00 | It could, depends on if there is a diode in the charging circuit to prevent it. I always leave my Laptop on charge when I am not using it, and if using on a desk. |
mzee (3324) | ||
| 814931 | 2009-09-28 21:55:00 | it shouldn't discharge the laptop, but if you dont turn it off at the wall over time it will ruin your battery with the constant charging. My mother has ruined her last 2 laptop batteries this way. |
lagbort (5041) | ||
| 814932 | 2009-09-28 21:58:00 | it shouldn't discharge the laptop, but if you dont turn it off at the wall over time it will ruin your battery with the constant charging. x2 It's important to cycle the battery maybe once or twice a month, if the lappy sits on a desk plugged in all the time. I leave my battery around 2/3rds charged and then slide it slightly out of the lappy so it doesn't constantly charge if I'm going to be using the lappy in one place for a few days. I've noticed a vast improvement in longevity of battery life since doing this. |
wratterus (105) | ||
| 814933 | 2009-09-28 22:11:00 | I disagree. Try googling for "Laptop battery myths": forum.notebookreview.com www.marco.org |
Chilling_Silence (9) | ||
| 814934 | 2009-09-28 22:19:00 | I don't think you need to cycle the battery at all but I do agree with not leaving the laptop plugged into power all the time and not use the battery at all. If you are going to do this then remove the battery so that it is not constantly being charged. My battery in my laptop only lasts about 10 mins because I have had it sitting on the docking station for 90% of its life. My parents laptop battery is the same as they never used it on battery power and I have seen many laptops come in to the workshop with the same problem and all of those customers said they never use the battery either. |
CYaBro (73) | ||
| 814935 | 2009-09-28 22:20:00 | How old is the laptop ? | Chilling_Silence (9) | ||
| 814936 | 2009-09-28 22:35:00 | I never really thought about it. I've had my laptop for a year. I take it to school for 6 hours says, sometimes plugging it at school while working. I bring it home, I plug it in and leave it overnight, sometimes my mother takes in to the lounge, but other than that, it appears to work fine. Now, because it's the holidays. I've just set it up so I put my third monitor on it, and work with it with a wireless keyboard and mouse like a desktop always plugged in. So, there are all these myths and points of view. I would have thought leaving it in, would be like any other appliance. But because it's this battery complexity I suppose there are some variables in this intense. So what is the recommended thing to do? Unplug it once a week and let it die, then recharge? Or, is it okay to leave it plugged in? Chilling_Silence, I did read your links this time - apologizes for over-looking last time. But still, I am confused as to what is, the recommended thing to do? I mean, I'll still leave it plugged in, but then I can plead innocence if my battery dies and I'm covered over my warranty still. xD |
Chris09 (15218) | ||
| 814937 | 2009-09-28 22:46:00 | Batteries only have a "life" of 12-24 months, most warranties won't cover them for longer than 6-12 regardless ... I remember reading a while ago in the EeePC technical docs that the laptop will go into "trickle" mode, where it'll stay around 98-100% charged by drip-feeding the laptop battery more juice as it drains (while plugged in). Here is Toshibas thoughts: laptops.toshiba.com After a period of time, the battery will lose its ability to perform at maximum capacity and will need to be replaced. This is normal for all batteries |
Chilling_Silence (9) | ||
| 814938 | 2009-09-28 23:11:00 | Time to add in another angle. My Acer laptop, is around 6 years old, still on the same battery it came with. When using it, I will run it on the battery till it gets to around 90% empty, then plug in the power, leave it to charge up, while still using it. Leave it plugged in until I have finished, then put it away in its carry bag. If I have it outside, and connected to speakers for occasions like a BBQ, I will run it from the Mains power,that can be anywhere from 3-6 hours. The actual battery Life will depend on whats being done, but generally I can get around 2 hours. |
wainuitech (129) | ||
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