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370 posts tagged with battery.
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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

X-Mini-level light

Is there a portable light that is as useful as the x-mini speaker? [more inside]
posted by Baldons on Oct 26, 2010 - 4 answers

help me find this battery widget

Looking for a specific Android battery level widget... [more inside]
posted by Lucinda on Oct 15, 2010 - 6 answers

To Fridge My Cell Phone Battery Or Not?

I have a pre-paid cell phone that I let my family/friends use when they come to visit me in Japan. I don't plan on using it for almost a year. What should I do with the battery? [more inside]
posted by sleepytako on Oct 4, 2010 - 5 answers

My nissan maxima 98 is having a battery issue or alternator

Nissan maxima starting problems, either battery or alternator [more inside]
posted by minsid on Sep 16, 2010 - 11 answers

Battery, charger, or worse?

Powerbook G4-- not charging, plus intermittent high pitched buzzing noise, which stops when charger is removed. Still running when plugged in, but battery reads 0%. I'm hoping it's the charger, and not the battery-- anyone recognize this problem? [more inside]
posted by jokeefe on Sep 10, 2010 - 10 answers

What is the best way to keep a battery charged on a car that's not going anywhere?

How often, and for how long, should I turn over my car's engine in order to preserve the battery? [more inside]
posted by Biru on Sep 6, 2010 - 21 answers

Do they not make them like they used to?

Is it possible to replace the battery in a cell phone or do I have to buy a whole new phone? [more inside]
posted by Hey Dean Yeager! on Aug 25, 2010 - 14 answers

UPS runtime

UPS/Battery backup question - I need a battery backup power source that will last as long as possible. My load is only 30w, so I understand that even a small UPS will power it ok - but I need to maximize the time that the UPS will continue to keep it going. [more inside]
posted by Xhris on Aug 20, 2010 - 8 answers

****ing batteries, how do they work?

Questions about priming a new battery to maximize its efficiency. [more inside]
posted by The Winsome Parker Lewis on Aug 18, 2010 - 5 answers

I lost my battery cover on my apple wireless bluetooth keyboard. Can I order a replacement?

I lost my battery cover on my apple wireless bluetooth keyboard. Can I order a replacement? [more inside]
posted by austinlee on Jul 26, 2010 - 4 answers

What is up with my car?

What's wrong with my car, and what's my best option for fixing it? [more inside]
posted by pemberkins on Jul 25, 2010 - 15 answers

Where can I get something like a Sonic Impact T-Amp?

I used to have a Sonic Impact T-Amp. It was incredible - a great-sounding battery-powered amp with an input for iPod/CD that could drive big speakers at volume. Mine broke and I think I might have thrown it away, which I regret. But in the meantime, is there something similar on the market? A small, great battery-powered amp? I'm based in the UK but would order from the States if needed.
posted by skylar on Jul 3, 2010 - 6 answers

Cigarette lighter in car doesn't work. Please help troubleshoot.

It seems the ac-adapter plug thingy (i.e. the cigarette lighter) doesn't work in my car. I suspect a blown fuse. I have neither the time nor the inclination to take it in to get fixed if I can do it myself. Halp? [more inside]
posted by Stewriffic on Jun 29, 2010 - 15 answers

Do you trust 3rd party smartphone batteries?

Do you trust third-party batteries for your cellphone? Specifically I'm thinking about picking up some spare batteries for the HTC Evo, but I've been a non-removable battery phone user for so long that I don't know if I really should stick to the manufacturer's branded batteries or can safely save some money and look elsewhere (like a Seidio, for example).
posted by extraface on Jun 24, 2010 - 8 answers

What happened to my car battery?

Yesterday my car started fine, but today the engine wouldn't crank even once. What caused my car battery to fail so suddenly and without warning? [more inside]
posted by cosmic.osmo on May 26, 2010 - 18 answers

put me out of my cell phone misery

Boston Cell Phone Filter: Please help me with this seemingly simple cell phone decision. [more inside]
posted by sully75 on May 24, 2010 - 4 answers

A few volts here, a few amps there, and before you know it there might be nothing left!

Does leaving my phone's car charger plugged in to the car at all times significantly drain my car's battery? [more inside]
posted by Vorteks on May 20, 2010 - 22 answers

Why doesn't this potato battery work?

Why isn't my son's science fair project working? His classic potato battery isn't producing any electricity. [more inside]
posted by LarryC on May 18, 2010 - 24 answers

Where to buy Canon CB-2LW Battery Charger in Orlando?

Where to buy Canon CB-2LW Battery Charger in Orlando? [more inside]
posted by bostonhill on May 16, 2010 - 1 answer

Is it harmful to leave my iPhone in the Sounddock all the time?

Will keeping my iPhone in the charger reduce the overall battery quality and life? [more inside]
posted by ptsampras14 on May 4, 2010 - 9 answers

Canon 7D HD video: How many batteries?

Canon 7D HD video: How many batteries? [more inside]
posted by drjimmy11 on Apr 21, 2010 - 13 answers

Laptop battery I just received is higher voltage, is that OK?

The replacement laptop battery I just received is listed as 14.8v while the one I use is listed as 11.1v. Both are 5200mah. Can I use this new battery without harming my laptop? [more inside]
posted by Runcible Spoon on Apr 10, 2010 - 6 answers

Battery shelves for a huge DC UPS

Battery shelf manufacturers: I need links to manufacturers of steel battery shelves for large DC UPS applications, for use with AGM VRLA lead acid batteries such as 2V 600aH to 1200aH and 6V 220aH to 600aH+ sizes. Batteries will be Rolls or a competitor. The shelves should knock down into something that can be flat packed and reassembled at an installation site. Features for earthquake bracing and shock mounting are also useful. Where do the US RBOCs buy their shelves?
posted by thewalrus on Apr 6, 2010 - 1 answer

Are there rechargeable batteries that retain their charge over several days?

What types of rechargeable batteries will hold their charge over several days of non-use in a digital camera? [more inside]
posted by burnfirewalls on Mar 29, 2010 - 23 answers

Ipod battery gas woes...

I punctured the sealed bag encasing my Ipod replacement battery and I can smell a sweet gas. Nice right? [more inside]
posted by Groovytimes on Mar 9, 2010 - 7 answers

Experience with non-Apple replacement batteries for MacBook Pros?

What's been your experience with non-OEM batteries for (pre-unibody) MacBook Pros? [more inside]
posted by dcjd on Mar 3, 2010 - 4 answers

Need a really big laptop battery!

How can I get a really really big rechargable "laptop battery"? Thinking 12-24 hours worth of charge on a laptop that can drain a high-cap battery in 1 - 1.5 hours. [more inside]
posted by weasel on Feb 12, 2010 - 14 answers

Did I kill my LIPO battery?

Did I kill this little Lithium Polymer (LIPO) battery? [more inside]
posted by de void on Jan 25, 2010 - 3 answers

Info about used hybrid cars and their hybrid-battery life

Used hybrid cars and their batteries. I want to buy a used hybrid in the US, looking at '04-'07 Toyota Priuses and Honda Civic Hybrids. Looking for your experiences with these cars, things to look out for, driving in winter conditions, and especially any solid info about the service life (yrs/mileage) of the hybrid battery. [more inside]
posted by LobsterMitten on Jan 22, 2010 - 19 answers

Why does my Macbook battery only last half as long now, but is still at 97% health?

Why does my Macbook battery only last half as long now, but is still at 97% health? [more inside]
posted by snailparade on Jan 8, 2010 - 14 answers

Any good iphone battery places in this town?

I have an iPhone 2G whose battery has not been holding charge well lately. I need a local to Los Angeles replacement. [more inside]
posted by arishaun on Jan 7, 2010 - 4 answers

Is a 12-cell netbook batttery a good deal?

I need a replacement battery for my Asus 1000HE netbook. I've been looking on Ebay, and it looks like they have some 12-cell batteries, whereas the original I got was (I think) 6. Does anybody have one of these, to know whether they're a good deal, how much bulk they add to the computer, etc?
posted by larkspur on Jan 7, 2010 - 2 answers

My other car is the millennium falcon

(Probably) really basic car question: my car is taking longer to start than it used to. Battery problem or something else? [more inside]
posted by bunny hugger on Jan 5, 2010 - 22 answers

Does anyone know what's up with my car battery?

Does anyone know what's up with my car battery? [more inside]
posted by st starseed on Jan 4, 2010 - 14 answers

Can I clamp two jumper cables together to jump a car?

Dead car battery, cable isn't long enough to reach - but I have another cable. Can I combine the two? [more inside]
posted by ORthey on Dec 30, 2009 - 24 answers

iPhone battery charging questions

How does my iPhone battery charge? I'd like to understand how my iPhone and its battery work better. [more inside]
posted by hokie409 on Dec 22, 2009 - 21 answers

drain on Ford F150's new battery?

Help us diagnose our Ford F150: what could be draining down the (new) battery overnight? We're suddenly seeing apparent battery drainage in our pickup truck, a 1994 Ford F150. Though the truck starts up fine, the dashboard battery gauge reads low immediately upon ignition, the windshield wipers are sluggish, and the dashboard lights are dim. We thought the old battery was likely dying, so we had it replaced with a new battery... but that hasn't solved the problem. [more inside]
posted by Elsa on Dec 19, 2009 - 28 answers

UPS and battery reference on the large scale

I would like to learn more about large-scale UPS systems, particularly the battery strings used in traditional RBOC/Telco applications. These are the sort of beasts that use huge strings of 6V 220aH deep cycle batteries, or even large numbers of 2V 400aH batteries on very strong earthquake-resistant shelving wired up to create a 48V mega-battery. Can anyone point me to the most definitive reference materials on the subject?
posted by thewalrus on Dec 17, 2009 - 4 answers

Freezing my ass off!

Have you had any experience with in-car extra heaters like the ones on the linked page? example types [more inside]
posted by Eicats on Dec 16, 2009 - 6 answers

Honda Civic Hybrid battery problems

2004 Honda Civic Hybrid won't start, but battery isn't dead. [more inside]
posted by empath on Dec 14, 2009 - 12 answers

Mazda3 won't start, don't think it's the battery. What could be wrong?

My 2004 Mazda3 hatchback with about 20,000 miles on it won't start. [more inside]
posted by misskaz on Nov 1, 2009 - 14 answers

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