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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

Planned laptop obsolescence?

I am really wary about buying a laptop with a non-user-replaceable battery. Opinions on this? How painful/possible is it to get such batteries replaced when they fail? [more inside]
posted by madmethods on Oct 6, 2011 - 14 answers

My car started revving automatically after being jump started.

My car is revving automatically. Can I fix this myself? [more inside]
posted by Gomez_in_the_South on Oct 2, 2011 - 10 answers

Did someone steal the americium?

Why did my two smoke alarms stop working altogether when the batteries ran down? [more inside]
posted by le morte de bea arthur on Sep 25, 2011 - 7 answers

I want to use my monitor and prolong the battery!

Will connecting an external monitor to a new Macbook Pro wreck the battery life? [more inside]
posted by DiscourseMarker on Jul 28, 2011 - 6 answers

Help me bring my crappy keyboard back to life!

I'm trying to resurrect an old Casio CPS-85 88 key keyboard. When it was given to me, the power jack was cracked, so I desoldered it and soldered on a new one. No luck; I can't get power (even with a different power supply). So I'm stuck running off of a lot of D batteries. As using D cells is both wasteful and expensive.is there any way for me to rig an external power supply to the battery terminals in a safe manner?
posted by Cat Pie Hurts on Jul 22, 2011 - 6 answers

Laptop battery troubles

Follow up to previous question....4yo Dell Inspiron laptop suddenly giving me the old "Plugged in but not charging" routine. Froze the battery for a day but no luck. So I bought a nice new one from Amazon that charged right up and worked for a week. No this one is giving me the same message. Any ideas? Or a place to turn to troubleshoot things? Any help would be appreciated.
posted by mikedelic on Jul 15, 2011 - 8 answers

Pilas de Mierda

I have a portable rechargeable amplifier that was custom built for me when I was in Peru, it no longer makes sounds when unplugged, although an LED lights up. When plugged in to the wall, it emits sounds. [more inside]
posted by cloeburner on Jul 15, 2011 - 9 answers

How do I buy a non-Apple battery for my 2008-era Macbook Pro and ensure it's the right one?

How do I buy a non-Apple battery for my 2008-era Macbook Pro and ensure it's the right one? [more inside]
posted by critzer on Jun 27, 2011 - 8 answers

Best Iphone battery replacement option?

What's the best iPhone (3G specifically) battery replacement option? [more inside]
posted by trialex on Jun 25, 2011 - 2 answers

Where is the best place to buy a Macbook battery?

I need to buy a new battery for a 2006 white Macbook, and I am afraid of buying a knock-off that will explode, burn down my house, and kill me and my family. Where is a good, reputable, place to buy a new battery? [more inside]
posted by 4ster on Jun 22, 2011 - 8 answers

Alternator or battery?

Battery or Alternator? Clues inside. [more inside]
posted by daisyace on Jun 1, 2011 - 14 answers

Auto Electrics for Dummies: Scooter Edition

I'm travelling on my Scooter about 1,200 kms (800 miles) over two days. Is there a way I can hitch up a 12 volt (car) or 5 volt USB charger to keep my Smartphone topped up while on the road and using power hungry apps? There is no 12v charger available, although there is adequate space under the saddle to store a work around. [more inside]
posted by Flashduck on May 8, 2011 - 10 answers

Is my MacBook battery a ripoff?

Is this laptop battery a ripoff, and how can I be sure? I bought a third party battery for my Macbook. It looks like the original 45Wh battery, but Coconut Battery (and the appropriate ioreg command) report the 'design capacity' as lower than it should be. [more inside]
posted by beniamino on Apr 27, 2011 - 10 answers

Time for a Battery Change, but... how?

How can I replace the battery on this watch? [more inside]
posted by amicamentis on Mar 23, 2011 - 4 answers

Help me diagnose my 1979 Ford Pickup.

I have a 1979 Ford F100, which once belonged to my father. Since he passed away, it's served as a backup vehicle for an array of relatives, and now it's my turn. Yesterday, I got into the truck and turned the key, and I heard a single "clunk" (not a click-click-click), as if something started moving and then froze up. I tried again, with the same result. The next time, I got a kind of whirring sound, like something spinning free. It's a continuous whirring, rather than a series of attempts to catch. Lights and radio work fine. Jumping it didn't help. I didn't try to roll it off, because I'm loathe to leave it at the bottom of the hill in my slighty sketchy neighborhood; I'll probably try that this weekend, when I can get some help. The battery is relatively new. It started easily up until yesterday. [more inside]
posted by steambadger on Mar 15, 2011 - 10 answers

Seattle area battery dealers, DC UPS

Seattle area telecom: Can anyone suggest a battery distributor/warehouse that stocks deep cycle lead acid batteries of the type suitable for a DC UPS? Shipping costs on these are very high so we would prefer to buy from a dealer somewhere along I-5 in the area from Bellingham to Olympia. We're looking for 6V 220aH T105 (golfcart type) and AGM 12V 120aH batteries.
posted by thewalrus on Feb 22, 2011 - 1 answer

2005 Toyota Corolla stalled on highway; battery cables; recall

Asking for a friend: "I've got a 2005 Corolla. That year/make is one of those selectively affected by the Toyota recall re: random stalling. I never received a notice that my car was affected, but I did buy (and transfer the title) fairly recently. Anyway, my car stalled--basically on the highway at rush hour..." [more inside]
posted by fiercecupcake on Dec 29, 2010 - 10 answers

These Blackberries don't taste so good...

Do you know anything about defective Blackberry batteries? Is there a definitive way to tell if a battery is from a defective batch? A list of bad serial numbers? Or a way to tell visually? [more inside]
posted by radioamy on Dec 18, 2010 - 3 answers

eBay battery experience

Which Macbook battery to buy on eBay? [more inside]
posted by mhz on Dec 13, 2010 - 3 answers

Mac crashing on battery power

I fell asleep a few nights in a row with my Macbook running on battery. I never did this before and now the laptop crashes erratically whenever running on battery, even when mostly at full charge. I assume the events are related, and that this may be analogous to driving your car until it runs out of gas: bad for the car. Advice? Did I ruin my battery? Is there a fix I'm overlooking?
posted by dgaicun on Dec 4, 2010 - 9 answers

Are battery chargers on ebay a safe replacement for conked out laptop battery?

Laptop Battery conked out. Safe to buy on ebay? [more inside]
posted by touareg on Nov 7, 2010 - 11 answers

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