386 posts tagged with battery.
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I'm losing control of my (battery) life!

What is going on with the battery of my Samsung Galaxy S Tab and how can I fix it? [more inside]
posted by Promethea on Jul 25, 2015 - 12 answers

Replace iPhone battery

Are independent phone repair shops an okay place to have iPhone batteries replaced? [more inside]
posted by Pater Aletheias on Jul 17, 2015 - 5 answers

What is the best Portable battery charger for Nimh cells

I have an old wall wart charger that seems to run all the time-I think it is about worn out,, I read reviews about better chargers and batteries- like on amazon the eneloop battery and charger sets look great. Looking to get the most bang for my recharging of aa,aaa,-with the option to charge 1 at a time or more, any feedback on batteries and charger kits will be appreciated,thanks
posted by Upon Further Review on Jul 3, 2015 - 7 answers

I replaced my car's alternator. Now what?

Last Thursday, my 2008 Scion xB had its alternator die. I picked it up yesterday from the mechanic, and a new alternator and new battery later, it runs fine, except for one thing: it gets a case of the shakes like it wants to conk out when it is idling. Could this be related to the aforementioned alternator problem, or is it something else? [more inside]
posted by 4ster on Jun 30, 2015 - 10 answers

Do these things run down my laptop battery faster?

I wonder if having 4-5 Word files open (including 2 always, just for for convenience) will drain my Dell Inspiron 11 3000 series battery quicker than just using one file at a time. I wonder: Does more tabs being open in a broswer mean more battery drain? Is a nonactive YouTube tab best being closed till used? I wonder if even having calendar, weather -- stuff I seldom open -- pinned to my taskbar run the battery down more quickly. Same question regarding having several Adobe Acrobat Reader PDFs ready at hand...just comic book pdfs. These things take so little space on the hard drive, so I figure they'd also use less RAM than other actual heavy programs, thus would be easiest on the battery-time availability. Correct me if I'm wrong, but having Foobar, Windows Media Player, and Spotify open at the same time will drain battery faster than having one going, as well as slow things down generally? Add to that the Word, Acrobat, a broswer... Thanks.
posted by noelpratt2nd on May 14, 2015 - 12 answers

Chemistry Content of Cell Phone Batteries

I just finished reading The Powerhouse by Steve Levine and it inspired me to be curious about the specific lithium battery chemistry of current cell and smartphones. I've found this link from Battery University which does a great job describing the current major variants used (LMO, NCA, NMC, etc). In some google searching I haven't found any specs on what phones like the Nexus 6 or the S6, or iPhone 6 uses. [more inside]
posted by wonderfullyrich on May 1, 2015 - 3 answers

Tell me about electric lawnmowers.

We are getting to the time of year where I am going to have to start mowing the lawn. Our old reel-style mower died at the end of last year, and it kind of sucked anyway. I do not want to mess with gas. Do you have an electric lawnmower, either corded or battery powered? Is it great? Is it terrible? Please tell me about it. [more inside]
posted by Adridne on Apr 28, 2015 - 28 answers

Electrical gremlins or real car problems?

My car (2012 BMW 328i xDrive Wagon E91 LCI) has two quirks: 1) battery warning after turning off the car, even after extended drives (never BEFORE starting the car) 2) brake wear warning after car has been parked in the cold for several hours (disappears after warming car up) [more inside]
posted by wutangclan on Apr 22, 2015 - 3 answers

What is draining my car battery and how do I make it stop?

I have a 2007 Mazda 3 with battery problems. I'm looking for: 1. Any thoughts as to what the underlying issue might be (and how expensive it should be to diagnose/fix); and, 2. Recommendations for anglo mechanics in Montreal (specifically Verdun, ideally). [more inside]
posted by 256 on Apr 6, 2015 - 16 answers

My car's winter woes...

I have to jump my car almost every time I drive it in the wintertime. Help! This is not fun at all. [more inside]
posted by gemutlichkeit on Feb 4, 2015 - 16 answers

Intermittent battery problem. Should I buy a new battery?

Twice in the last 6 weeks, our car wouldn't start without a jump. Rest of time it's fine. Should I buy a new battery or is it something else? [more inside]
posted by gfrobe on Jan 25, 2015 - 17 answers

Laptop battery won't hold charge, but the battery may not be the issue?

Help me diagnose, because I'm not convinced that it's because the battery is completely/irreparably fried. I am computer hardware naive but would prefer to explore all diagnostic possibilities before purchasing a replacement battery, especially if that won't fix the issue. [more inside]
posted by nightrecordings on Jan 24, 2015 - 7 answers

Give me your car battery anecdata, please.

Dead six-year-old car battery last night. Replace? [more inside]
posted by Sheydem-tants on Jan 23, 2015 - 14 answers

Reliable replacement battery for Dell Latitude E6420 in Germany

My 3 year old Dell Latitude E6420 laptop needs a new battery. It had a replacement already about 2 years ago after the one it shipped with just fell out one day (!) but other than that has had no battery problems. Anyone know how I can get a reliable replacement **here in Germany**? I would ideally like a Dell or Dell-recognised component as this is my primary device and it needs to be reliable.
posted by KMH on Jan 22, 2015 - 2 answers

Where to get a replacement netbook battery?

Have you successfully purchased a replacement battery for your laptop online? Are there any particular retailers you'd recommend? [more inside]
posted by Proginoskes on Jan 19, 2015 - 4 answers

I want a clock radio with some specific features

I'm looking for a clock radio with these features: radio, battery powered (not battery backup), alarm, and headphone jack. [more inside]
posted by sevenless on Jan 4, 2015 - 15 answers

Please Help Me With Dell Notebook Battery Question

Confused but getting there - so Dell Latitude D430 - now I need to replace the battery - and I'm seeing all these different batteries with 6 cells and more. What should I be looking for and getting? Are more cells better? Longer lasting? [more inside]
posted by watercarrier on Dec 23, 2014 - 2 answers

Any CE devices that can recharge AA/AAA batteries within themselves?

I'm wondering if there exist any (portable) consumer electronics devices - so like music player, mouse, flashlight, audio recorder - that take any chemistry rechargeable AA or AAA batteries, and can recharge them right in the device. [more inside]
posted by attercoppe on Dec 15, 2014 - 20 answers

Best battery-operated CPAP machine?

My father-in-law needs a CPAP machine to sleep well. What do you recommend for a portable, battery-powered version? [more inside]
posted by brianogilvie on Dec 9, 2014 - 8 answers

Laptop battery replacement

Hey, all. I have a three-year-old Gateway laptop (NV55C) that was having battery problems, so I bought a replacement battery from Amazon. When I got the replacement battery, it included a list of battery models it replaces, and the model of my old battery was not among them. Is this bad? [more inside]
posted by kittens for breakfast on Dec 7, 2014 - 2 answers

Samsung Galaxy s3 won't charge anymore. Please help!

I got my samsung galaxy s3 15 months ago. My phone has been acting up lately - been very slow to charge and even after being fully charged goes down within 10 minutes. Now my phone say that it is charging but only reports 0%. I've had it plugged in for several hours with no change. I then turned off my phone and then removed the battery and put it back in again. Currently can't get to a Verizon wireless store and traveling. Was wondering any means to self diagnose the problem until I get to a real store next week. ANY ADVICE WOULD be HELPFUL. Thanks in advance!
posted by proficiency101 on Nov 10, 2014 - 12 answers

Battery case for an Iphone 5_ what should I get?

As our Iphone ages a bit and the battery fails more and more we are looking into a battery/case combo and find that the prices are just all over the place as well as what folks recommend.I want to know, Has anyone had any good experiences with the less expensive combo case/batteries? What do you recommend?
posted by citybuddha on Nov 10, 2014 - 7 answers

High processor usage for Chrome under OS X Yosemite.

How can I stop Chrome from killing my battery? [more inside]
posted by modernnomad on Oct 21, 2014 - 10 answers

Keeping car battery charged over winter

Is a trickle charger the same as a 2 amp charger? [more inside]
posted by pmaxwell on Sep 15, 2014 - 4 answers

Need a reputable computer battery supplier in NZ

Attention MeFi Kiwis: I need to buy a replacement computer battery in Auckland. Can you recommend a reputable dealer? [more inside]
posted by orrnyereg on Aug 30, 2014 - 2 answers

Should I jump start my car immediately? Or can I leave it till tomorrow?

Just went out to the family car to find it has a flat battery. Such a lovely day outside, I really don't feel like jump starting it, and I don't need it today. However, I was speaking to my father (who's overseas, I'm house sitting) and he'd prefer I do it today as car batteries shouldn't be left in an uncharged state as doing so does damage. Is this true? [more inside]
posted by tomargue on Aug 29, 2014 - 12 answers

Very basic car battery question

The internet says positive should be reconnected first, but that's not as easy as it should be. What's the best option? [more inside]
posted by notquitemaryann on Jul 16, 2014 - 13 answers

Canon S100 battery pack error

My Canon S100 is just two years old (so out of warranty). I bought 2 batteries with it, and two more generics a year later. Now when I put any of the four into the camera I get a black screen with white text saying, "Change the battery pack." [more inside]
posted by acorncup on Jul 1, 2014 - 5 answers

Android tablet with best battery life?

My cheapo Android tablet finally gave up the ghost. I'm in the market for a new, nicer one and thought about getting the Nexus 7*. But searching around, it seems to have a lot of problems with battery life, even when on stand-by. I don't play games or watch videos or even listen to music much on a tablet. My main use case is reading and annotating pdf articles and books, especially when traveling (long flights) when battery life is kinda important. Are these battery life concerns for the Nexus 7 founded? Is there another Android** tablet that does better? [more inside]
posted by bluefly on Jun 14, 2014 - 15 answers

This defeats the purpose of a cell phone

Phone battery won't hold a charge-what can I do? [more inside]
posted by geegollygosh on Apr 22, 2014 - 12 answers

Laptop battery replacement: worrywart edition

I have a Lenovo Ideapad Z470, and the battery is pretty shot. I've been unable to find a replacement battery for this model through Lenovo's own site. I also can't seem to find an exact match for the one I have through third party selling. Current battery: labeled Li-ion 20, model # L09S6Y02. Closest match I found online, which claims that it's compatible with my laptop (but I could find no actual evidence): Li-ion 00, model #L08S6Y02. Put my mind at ease, Mefites: is this new battery compatible with my laptop? (And if I should return it, where should I get a battery, because searching Amazon for this kind of thing has been annoying.)
posted by TwoStride on Apr 12, 2014 - 3 answers

Help me not get swindled by car mechanics

New (6 month old) car battery has died twice in the past month. From the pattern it's been showing, can you help me figure out what the issue might be, and help me avoid getting swindled in my attempt to get it fixed? [more inside]
posted by raztaj on Mar 1, 2014 - 20 answers

Where can I buy a Lenovo X220-compatible charger in DC today?

Right now I'm at the airport, waiting to fly into DC, and just realized I forgot my charger. I'll see what I can pick up at my layover, but I would like to a) not fry my laptop and b) continue to use my laptop. I would like to buy the charger after checking into my hotel. I will not have a car. Relevant facts: 1) The X220 is the small Lenovo Thinkpad (not touchscreen.) 2) Staying in Dupont Circle 3) No car
posted by chesty_a_arthur on Feb 19, 2014 - 8 answers

NiMH Battery Chargers that work

I have a good mix of AAA, AA, C, D & 9V rechargeable batteries. Are the mindblowingly-expensive Powerex chargers the only game in town for getting a decent charge, or are there other options? [more inside]
posted by scruss on Feb 15, 2014 - 14 answers

You remind me of the babe.

Or what do I have to look for on a portable generator to recharge my camera and tablet. [more inside]
posted by Fermin on Feb 11, 2014 - 11 answers

Nexus 7 battery takes forever to charge

I have an 8-GB Nexus 7 that's about a year and a half old. Its battery life seems fine, but the actual charging takes an unreasonable amount of time. When it was new, it charged in about 2.5 hours; last night it took 7 hours to go from 30% to 60%. I'm using the adapter and cable that came with it. Is there anything I can do to make my device charge faster?
posted by zeptoweasel on Jan 8, 2014 - 11 answers

Android (Nexus 5) battery questions / issues... ?

I'm running the latest version of Android on a Nexus 5. I have location services enabled. The battery sucks and I'm trying to understand what exactly is going on. [more inside]
posted by dobbs on Jan 4, 2014 - 17 answers

13 years old, my car’s about to hit puberty.

I have a 2001 Prius and it needs a new hybrid battery. Does anyone in Milwaukee, WI, know of a shop that can do this? [more inside]
posted by thebestsophist on Dec 19, 2013 - 4 answers

My iPhone doesn't do well in the cold. What can I do?

I bought my iPhone last February. During what remained of that Winter, I would take it with me when cross-country skiing, walking outside, or taking the bus to work. It seemed to operate just fine, as had my prior phone which was a Samsung. This Winter, however, the cold weather seems to be seriously affecting the phone's battery life. The battery drains quickly when I'm outside and sometimes suddenly goes from 20% or more to dead. Today, I went out skiing with the phone. I was listening to a podcast and using an exercise app to track my speed and distance. When I started out the phone had 55%, but it died after only 10 minutes. The temperature was -10F/-23C. I've also had it drain quickly after waiting to catch the bus. Is there anything I can do to solve this problem and continue to use the phone in the Winter? Is this something the folks at the Genius bar can help with? Should I create some sort of insulated pouch for the phone? I realize that temperature can affect batteries, but I'm surprised because I didn't have this problem other winters. I know I've taken phones out in colder weather than today without such a sudden failure.
posted by Area Man on Dec 7, 2013 - 14 answers

Macbook pro battery life

My macbook pro battery life is awful, and it shouldn't be. What can I do about that? [more inside]
posted by R a c h e l on Nov 26, 2013 - 15 answers

Searching for a Lumix Li-ion Replacement Battery in Austin

I'm trying to find a replacement battery for my Panasonic Lumix camera in south Austin, TX. The camera is a relatively new model (DMC-FZ200), and I'm having a hard time finding local stores that might carry the battery in stock. The battery is a DMW-BLC12PP 7.2V, 1200mAh/8.7Wh Li-ion. No time for ordering, I need to find something and pick it up tonight. Thank you for your help!
posted by nickerbocker on Nov 14, 2013 - 2 answers

time! time! who's got the time?

is there any place in the bay area that doesn't charge a fortune to replace a watch battery? [more inside]
posted by koroshiya on Nov 1, 2013 - 11 answers

Android App for battery usage/management for older, non-technical user

I'm helping an older gentleman get going with his first smart phone. He is traveling without a car, camping without power, battery consumption management on the phone is CRITICAL. The app needs to FIRST be simple to setup and use, second allow him to easily see what is using the battery, and third have tools to kill wasteful usage. Free would be nice, but willing to pay for a SIMPLE app that does what he needs without confusing him with bells and whistles. [more inside]
posted by jcdill on Sep 23, 2013 - 12 answers

Tell me where to buy / how to make a DC light timer

Our chickens [!] have trouble hopping up on their roost at dusk. We have glued a keychain LED to the inside of the coop and have been turning it on every night, and then off when they are roosting. I would like to have this turn on automatically at dusk and then off again an hour later. If this were AC I would buy a timer from the dollar store. For DC do I need to build something? [more inside]
posted by Acari on Sep 8, 2013 - 8 answers

Cellphones refuse to charge batteries

This has happened over at least 3 different cellphones, from HTC and Samsung. The battery will work fine for months, and then the phone will lose the ability to recognize that it is charging. [more inside]
posted by IAmBroom on Sep 8, 2013 - 12 answers

Ford Fusion Cigarette Lighter: Re-wire to Turn On and Off with Ignition?

I have a 2010 Ford Fusion and a lot of electrical gadgets which plug into the cigarette lighter. The car I previously drove (for over ten years) had a cigarette lighter which turned itself on and off with the ignition. The Fusion, however, leaves the lighter socket on all the time. Because of this, I sometimes forget to unplug things from the cigarette lighter and end up with a dead battery after a day or two with the car parked. Is there some relatively-easy way for me (or a mechanic) to re-wire the cigarette lighter so that it powers itself on and off with the ignition? If so, how? [more inside]
posted by Juffo-Wup on Sep 4, 2013 - 11 answers

Dell Vostro 1400: Battery not being recognized. Possible culprits?

Is it even possible to replace the component that will allow my battery to be recognized again? [more inside]
posted by lizarrd on Jun 17, 2013 - 2 answers

Camera phone with easily removable SD card and battery

I am looking for a phone that has a camera and easily removable data storage and battery. It does not have to be a new phone, so any model from the past few years that has these features would be appropriate. [more inside]
posted by asok on Jun 14, 2013 - 3 answers

Watch adjustment

I have this type of watch. The manual suggests that I should get Timex to repair the battery. I'm hoping to be able to do it myself and save a few bucks. However, I don't really see any way to get the back off. I also want to adjust the band as it's too large for my wrist. But, again, I really have no idea how to do this. Hoping someone here can tell me if this is something I'd be able to do from home (and tell me how to do it) or whether I should take it to a jeweler.
posted by Proginoskes on May 19, 2013 - 9 answers

Is it a bad idea to keep a MacBook Pro plugged in while charged?

I recently acquired a new MacBook Pro, with a retina display. It's a sealed unit, with no user-replaceable battery, so I'm obviously interested in maintaining the battery life. I noticed that the new T-shape mag safe connector is not very grippy, and falls out all the time. So I called Apple to see whether the constant unplugging/plugging was a bad idea, and the rep actually said at one point that it was a bad idea to keep the laptop plugged in when it was charged (with the green LED showing in the adapter). I confirmed that this was what he was saying. So does anyone know if this is true? Because I've always kept my laptops plugged in, all the time. [more inside]
posted by carter on May 16, 2013 - 13 answers

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