381 posts tagged with battery.
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Mountain Lion, New SSD - what's destroying my battery life?

So, I've made the fatal mistake of performing several upgrades at once, and I could do with some advice on where to go now... is my problem with charging time and battery life my new SSDs, my new OS, or something else entirely? Generic snowflake details to follow: [more inside]
posted by running order squabble fest on Feb 24, 2013 - 7 answers

Is it wise to replace the dead battery in my MacBook?

I have an older MacBook I use when travelling (four or five times a year), and then the odd occasion when I am away from my office desktop. The battery on the MacBook died a few months ago, and I am guessing partially because I haven't been using it frequently enough. I am hesitant to replace the battery, figuring the same thing will happen again, is that right? Is there a downside to not having a working battery on the computer itself? And lastly, is there a problem with leaving the dead battery in the computer?
posted by nanook on Feb 15, 2013 - 7 answers

Which is the best website to purchase a new phone battery from?

I have a Orange San Francisco smartphone. It's also sold as the ZTE Blade. I'd like a new, more powerful battery for it. Where is the best place to purchase one from? I can find lots of sites selling them, but I'm having difficulty picking out the non-sketchy one(s) from the sketchy ones.
posted by Solomon on Feb 15, 2013 - 2 answers

New battery, no power?

Please help me think through this car battery problem. I have a new battery, but no car power. Details inside. [more inside]
posted by griseus on Jan 24, 2013 - 14 answers

Help me with my iPhone 4 Battery Life!

I have an iPhone 4 and since the iOS 6 update, my battery life is horrible! Help! [more inside]
posted by dbirchum on Jan 15, 2013 - 14 answers

Knife the Mac

The Apple Store Genius fixed my Macbook's problem while I was in the store, but now that I'm home again I'm back to square one. Help. [more inside]
posted by mudpuppie on Jan 1, 2013 - 22 answers

VADO HD Battery - Help Needed Please

Where can I find a replacement generic battery for VADO HD? [more inside]
posted by watercarrier on Dec 26, 2012 - 0 answers

Need a hobbyist electronics shop in Toronto

Where in Toronto can I buy small cylindrical rechargeable 3.7V Li-ion batteries like the UltraFire, hopefully at a reasonable price? (or maybe they were 3.6V, I can't recall) [more inside]
posted by PercussivePaul on Dec 23, 2012 - 5 answers

Reduce 12v to 9v or 5v

How can I control/reduce the amount of power from a 12v battery? [more inside]
posted by powpow on Dec 22, 2012 - 6 answers

Best Low-Drain, Long-Life Battery

How can I continuously run a 3W - or less - LED light with +/- 350 lumens as long as possible (1 year minimum) with a relatively compact battery source? [more inside]
posted by xod on Nov 14, 2012 - 18 answers

Help assuage my concerns about my little old car!

Please help me determine what happened to my car recently - was it the battery, the alternator, or something else? [more inside]
posted by schmoo on Nov 12, 2012 - 12 answers

How to choose a replacement scooter battery?

Which batteries can I purchase to replace the original from my scooter, a 2007 Honda Metropolitan? [more inside]
posted by cupcakeninja on Nov 6, 2012 - 6 answers

New Paperweight Anyone?

My Android phone, a Samsung Nexus S, operates on Jellybean 4.1.1. Since the latest update, I've noticed a dramatic decline in the battery life--it will go from fully charged to dead within 3 hours of intermittent use, regardless of whether I'm on a 3G or Wifi connection. How can I optimize the battery life on my phone without losing its functionality? [more inside]
posted by therewolf on Oct 9, 2012 - 12 answers

Car Battery Conundrum

I have a brand new car battery. My car has some issue that is (still) draining the battery, after I already had a mechanic look at and fix what was supposedly the issue. What can I do so that my battery doesn't go dead and get ruined over the winter while the car is idle? [more inside]
posted by furious on Oct 5, 2012 - 17 answers

Used lithium-ion batteries sold as new?

I suspect that unscrupulous dealers buy used Lithium-ion batteries, reset or replace the circuitry so that the capacity and charge cycle count are as-new, and then resell the batteries as new. How can I collect evidence for or against this hypothesis?
posted by beniamino on Oct 3, 2012 - 6 answers

Why does my iPone suddenly have horrible battery life?

What could cause the sharp drop in battery life for my iPhone 4S? Even if fully charged, it will deplete within 5-6 hours of idle time. [more inside]
posted by Tanizaki on Sep 24, 2012 - 13 answers

waterdamaged macbook pro battery difficulties

so i "fixed" a relative's water-damaged macbook pro, but it still has issues. [more inside]
posted by camdan on Sep 17, 2012 - 8 answers

How often do I really need to drive my car?

How often do I really need to drive my car? (goal: keeping the battery charged, engine happy, etc.) [more inside]
posted by dizziest on Sep 11, 2012 - 17 answers

Electronics in St. Petersburg, Russia

I messed up my travel packing, and I now need to buy a charger for a Canon S95 camera battery in St. Petersburg, Russia. Is there any place where I could get one for a reasonable price? I'm staying downtown.
posted by Jakey on Sep 10, 2012 - 4 answers

Solar powered USB help?

Calling all electrical engineers! Need some clarity on how to figure out solar charging rates and consumption of a USB device... [more inside]
posted by griffey on Sep 8, 2012 - 3 answers

Is this another useless superpower?

Do other peoples' cellphone batteries spontaneously discharge, or is it just me? [more inside]
posted by still_wears_a_hat on Sep 6, 2012 - 15 answers

How many AA batteries would it take to run a 3rd-gen iPad for one hour?

How many AA batteries would it take to run a 3rd-gen iPad for one hour?
posted by Egg Shen on Sep 5, 2012 - 7 answers

Is the dealership scamming me?

Bought my used 01 Toyota Camry from a dealership over a year and a half ago. Today they inspected the brakes and told me all pads need to be replaced + new brake fluid + powersteering fluid flush + resurfacing the rotors, and new battery. I have been taking this vehicle to same dealership for routine oil changes which include multi-point inspections, and only the battery was an issue in the past. Am I wrong to think that after just over a year and a half I shouldn't need so much work done- should I complain and write a letter, or is this to be expected with a used vehicle? [more inside]
posted by biograd08 on Jul 14, 2012 - 20 answers

Help me determine if this car battery is indeed the guilty party

Is it sufficient for two occurrences of "Oops I Left The Headlights On" to completely kill an automobile battery's ability to maintain a charge? [more inside]
posted by armoir from antproof case on Jul 6, 2012 - 17 answers

I need a reasonably-intelligent phone, not a smart phone.

Is there a phone out there with a battery life like they used to have that can still let me check facebook every now and then? [more inside]
posted by smoke on Jul 2, 2012 - 19 answers

Worth replacing UPS battery?

Is it worth replacing my UPS battery or buying a newer UPS that better fits my need? [more inside]
posted by ccalgreen on Jun 14, 2012 - 7 answers

Help me; help my battery

Laptop battery filter: My Lenovo SL510 wasn't charging my battery, and I foolishly assumed it was the battery's problem and bought a new one. But the new one wouldn't charge either. Any advice? [more inside]
posted by ubiquity on Jun 14, 2012 - 7 answers

Why won't my MacBook warn me when my battery is about to run out anymore?

My Macbook used to give me a low-battery warning before it went to sleep: now, before the battery indicator even turns red, it just powers down without warning, and I'll lose anything I had open and was working on. What happened?
posted by BuddhaInABucket on May 24, 2012 - 13 answers

Your experiences with the Flashpoint battery grip?

Fellow photographer Mefites, what are/were your experiences with this Flashpoint battery grip on a Canon EOS T1i? [more inside]
posted by jgwong on May 24, 2012 - 5 answers

mp4 battery

Replacement flat battery pack for a dead mp4 player. [more inside]
posted by ackptui on May 17, 2012 - 3 answers

Chicago Fuji Battery Charger

I've got a four-hour layover at Chicago O'Hare tomorrow afternoon, during which I'd like to buy a charger and spare battery for my Fuji X100. [more inside]
posted by erikgrande on May 8, 2012 - 12 answers

Groovy battery operated boombox?

Best battery operated boombox [more inside]
posted by ian1977 on Apr 18, 2012 - 4 answers

Batteries for my phone

How risky (or not) is it to buy non OEM batteries off of ebay from china for my cellphone? [more inside]
posted by skjønn on Apr 10, 2012 - 5 answers

Nothing runs like a Deere, when it runs.

I inherited a 1988 John Deere 160LT Lawn Tractor. It has been difficult to start. I was advised that my battery did not have enough cold cranking amps, sp I bought a more powerful twelve-volt battery today and I still cannot start the mower. I can, however, hear a click inside the engine compartment each time I turn the key. [more inside]
posted by 4ster on Mar 23, 2012 - 16 answers

Power to the robot people

Does anyone have any experience using a wall wart battery charger, one for battery packs, as a power source wired direct to the machine that the batteries usually are installed in? I have a Wall-e and it has a dead batttery, one is ordered to replace that but I got to thinking of running the little guy off a long cord for the motion portion of his performances. The battery has a unigue connector to make the + and - stay correct and I could work around that part.
posted by Freedomboy on Mar 9, 2012 - 4 answers

Phone's battery drain is draining my patience

Phone's battery drain is draining my patience, after hours of research, two batteries, and several phone calls with T-Mobile. How do I fix this? [more inside]
posted by FlyByDay on Mar 8, 2012 - 13 answers

Taking care of my Macbook Pro's battery.

what are the best practices for taking care of a macbook pro (specifically the battery) for someone who uses it intensively for 8-10 hours a day? [more inside]
posted by austere on Feb 17, 2012 - 11 answers

What LEDs and batteries to buy, and where?

I'm doing a craft project and would like to install two red LEDs that are powered by a battery pack with an on/off switch. I would love your opinion-advice on what to buy and where to buy it. [more inside]
posted by komara on Jan 25, 2012 - 12 answers

Can't jumpstart my car!

Why can't I jump start my 2004 Ford Focus? [more inside]
posted by bitteroldman on Jan 16, 2012 - 20 answers

Is my iPad 2 up to the job?

Is my ipad2 up to the job? I have to give the same hour-long presentation in three separate sessions in one day. I am planning to use Keynote on my ipad2 attached to a projector but I'm worried about battery life on the iPad. Does anybody have experience using their iPad in this way? I will of course, turn off every battery draining thing I can find. I could also switch to my iPhone 4S if I had to, I guess. Will I be okay for three presentations?
posted by tamitang on Jan 14, 2012 - 12 answers

beachball in january no good

New Year's edition of "my macbook pro is suddenly slow"... [more inside]
posted by Namlit on Jan 7, 2012 - 12 answers

Grounding the negative clamp when jump-starting your car

Question about jump-starting a car: why did my neighbor absolutely insist I ground the negative clamp... to the battery? That seems unwise. [more inside]
posted by subject_verb_remainder on Dec 29, 2011 - 27 answers

How do I intentionally drain my AA batteries?

What is the best way to regularly drain 6-8 AA batteries? [more inside]
posted by CrystalDave on Dec 19, 2011 - 20 answers

You know what? The App for That sucks.

Help me not hate my iPhone. [more inside]
posted by oflinkey on Dec 3, 2011 - 25 answers

Put the new battery ino the phone again, it can be working.

Can anyone tell me what the purpose of this "Battery Connector" is? We purchased some replacement batteries for blackberries, and while we can read the engrish, we don't understand what exactly is taking place when we follow the instructions. Help me mefi!
posted by TuxHeDoh on Nov 21, 2011 - 7 answers

Acer Aspire One battery replacement

Replacing battery in an Acer Aspire One with one from a different Aspire One design? [more inside]
posted by LSK on Nov 16, 2011 - 1 answer

A battery of questions!

Does an expensive battery charger do a better job of charging and maintaining NiMH batteries than a generic, cheapo charger? [more inside]
posted by newfers on Oct 26, 2011 - 7 answers

where to buy blackberry battery in NYC

I am looking to buy a blackberry battery. Is there are store around New York City that sells this kind of battery? I don't want to order online and prefer to pick it up at a store and avoid shipping fees.
posted by metafus on Oct 22, 2011 - 4 answers

All your batteries are belong to us.

Are there ANY aftermarket (non-Nikon) batteries that work with the Nikon D3100? [more inside]
posted by werkzeuger on Oct 21, 2011 - 8 answers

Is my laptop's battery life normal for it's age?

Is my laptop's battery life normal for it's age? It's used and I know next to nothing to laptops. More inside. [more inside]
posted by CelebrenIthil on Oct 6, 2011 - 12 answers

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