Wikipedia:Reference desk/Archives/Computing/2017 April 1

= April 1 =

Laptop battery for heavy use
I'd love to use my laptop like 10 hours each day without plugging it. 7-8 or so hours for work, +2 hours privately.

Some manufacturers promise a battery life that would cover this. My issues are: which of them is actually lying (if they promise up to 10 hours, 5 hours would be OK for them), which one offers replacement batteries at a fair price (no interest in third party batteries, I got - not literally - burned by one of these)?

I.e. what laptop to buy, when you care almost only about the battery life? --Hofhof (talk) 09:40, 1 April 2017 (UTC)


 * If only there was a website where you could type in "longest battery life laptop" and find web pages like, , and . I bet someone could make a lot of money with a website like that. I'm just saying. --Guy Macon (talk) 14:16, 1 April 2017 (UTC)


 * OP was not really asking for longest battery life, but about manufacturers' lies, and replacements. --Dikipewia (talk) 16:46, 1 April 2017 (UTC)


 * ..and I responded with links to actual tests of laptop battery life, all of which are easily-findable with a Google search. --Guy Macon (talk) 22:18, 2 April 2017 (UTC)


 * One should not be choosing one's laptop on the battery performance but the laptop that fulfils your needs. OK, it may be that you just want it for email and surfing where performance doesn’t matter. Look at external batteries. Google and there are lots. Example: thebatterygeeks. Personally, I still use my slide rules. Some are more than 40 years old and haven't had to change any of their batteries even once. --Aspro (talk) 14:55, 1 April 2017 (UTC)
 * A Google Chromebook may be able to do this (I previously volunteered at an academic library that checked them out for a day at a time, without checking out the charger, and running out of battery was essentially never a problem for the students who borrowed them), but it has that capability because it's so simple and can do so little; you'd be facing the complete lack of a hard drive, the necessity of having Internet access or some physical connection (e.g. a flash drive) at all times, and very limited capabilities overall. Nyttend (talk) 01:18, 2 April 2017 (UTC)
 * The is no easy answer. If you like some model, you can search the internet for reviews where its battery life was actually measured and then make a decision. Ruslik_ Zero 08:33, 2 April 2017 (UTC)


 * There are SoC CPUs avail, consuming least 6 watts of power maximum. Some of such computers, not even made for gaming, can be used for several hours without recharge. To increase a battery life, never deep discharge it. Some hybrid cars keep the traction battery charged between 90 and 40 percent. Most portable computer power supplies have 19 to 20 volts output. Car adapters contaning a boost converter are avail. -- Hans Haase (有问题吗) 12:41, 2 April 2017 (UTC)


 * Suggestion: carry a spare battery. You will need to power down to swap batteries, and also need to arrange to charge the spare, but this should solve your problem. StuRat (talk) 23:09, 2 April 2017 (UTC)

"system32\imagers.dll" and "syswow64\imagers.dll"
I currently don’t possess the entitled files. Could some guide me to the originals in order to download? 103.67.156.2 (talk) 16:29, 1 April 2017 (UTC)
 * If you want a meaningful answer, you will need to tell us what program you are using which requires these .dll's. I'm guessing that you're getting an error message saying that the files weren't found. If that is so, then also let us know exactly what that error message says (all of the text, including the title in the bar at the very top of the window). ᛗᛁᛟᛚᚾᛁᚱPants   Tell me all about it.  13:15, 3 April 2017 (UTC)