395 posts tagged with battery.
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Selling a dead battery car: Dealership or Craigslist?

Car with a dead battery (sorta). I want to sell it immediately. Will I be better off selling it to a used car dealer or on Craigslist? If the former, can anyone recommend a dealer in Seattle? [more inside]
posted by carpyful on May 28, 2009 - 14 answers

Advances in battery technology on the horizon?

Where can I read about exciting or revolutionary advances in battery or energy storage technology? What is on the horizon that might actually see the light of day? I'm interested in all applications, but most especially computers and cars.
posted by Crotalus on May 18, 2009 - 6 answers

Lighting up a Salt Lamp without electricity?

Looking to power (light) a Himalayan Salt Lamp for about 48 hours, without using an outlet. [more inside]
posted by GJSchaller on Apr 25, 2009 - 12 answers

Will this overload my UPS?

I have a 850va 425w UPS battery backup with only 2 outlets. There is a small server, speakers, home theater projecter, lcd monitor, and router connected to a power strip. The power strip and a desktop plug into the UPS. Is this setup safe? I am concerned about short 1-second interruptions caused by bad electrical connections rather than power outages.
posted by lpctstr; on Apr 25, 2009 - 8 answers


My HP Pavillion dv6000 laptop works fine...except for one little battery related thing. [more inside]
posted by Neonshock on Apr 11, 2009 - 4 answers

Ipod battery replacement?

Has anyone replaced their ipod battery? [more inside]
posted by wayofthedodo on Apr 10, 2009 - 14 answers

My computer is having some difficulties.

Is my iBook G4 dying? [more inside]
posted by Brachiosaurus on Apr 2, 2009 - 7 answers

Is difference in voltage and pins an issue with replacement batteries andd chargers?

Are third party chargers and batteries OK for Canon digital cameras? [more inside]
posted by filthy light thief on Mar 2, 2009 - 9 answers

It's Alive!!!!

I have sulfuric acid, de-ionized water, and basic lab equipment. Can I revive my crappy car battery? [more inside]
posted by scose on Feb 23, 2009 - 18 answers

Help me understand Li-ion laptop batteries.

I'm about to purchase an aftermarket Li-ion laptop battery on eBay. However, I'm quite confused about the differences in specs for mAh and number of battery cells. Which is more important and how are they related? [more inside]
posted by iamisaid on Feb 16, 2009 - 7 answers

Battery For Aging Laptop: OEM or 3rd Party?

Battery For Aging Laptop: OEM or 3rd Party? I need a new battery for my four year old Mac powerbook (old one discharges within 60 mins). Like the original, it lost its endurance after 2 years and currently discharges after 60 mins of use. There are few OEM batteries still around for this thing (though I did find one on eBay). But it occurs to me that while no Apple battery could possibly be fresh at this point, the 3rd party replacement ones MIGHT be more recently made. Though I'd usually hesitate to go with a 3rd party manufacturer on something like this. Any advice? FWIW, it's a Powerbook G4 15", and battery is A1045/A1078/A1148
posted by jimmyjimjim on Feb 9, 2009 - 11 answers

How do I find out which battery is compatible with my laptop? (Toshiba Satellite L300-1A8)

How do I find out which battery is compatible with my laptop? (Toshiba Satellite L300-1A8) [more inside]
posted by bostonhill on Jan 12, 2009 - 2 answers

What are the reasons for the comparatively high prices of nickel-iron batteries?

Pound for pound, megajoule for megajoule, why are nickel-iron (NiFe, Edison, etc) batteries so expensive as compared to others? [more inside]
posted by adipocere on Jan 8, 2009 - 6 answers


Where in Los Angeles (or within an hour's driving distance) can I get a whooooooooooole bunch of LR41 batteries on last-minute notice? [more inside]
posted by mykescipark on Dec 30, 2008 - 8 answers

Someday computers will run on rainbows

Are there ever any other reputable vendors for laptop batteries other than the laptop manufacturer? [more inside]
posted by oflinkey on Dec 21, 2008 - 11 answers

Solar help: Keep a 12V battery charged?

I have some remote monitoring equipment out in the woods that runs on a single 12 volt deep cycle car battery. How do I keep my 12 volt battery charged using a solar panel? [more inside]
posted by jldindc on Dec 8, 2008 - 12 answers

Great big doorstop. FAIL.

Backing up an HP laptop for the ignorant. Halp? [more inside]
posted by CwgrlUp on Dec 6, 2008 - 7 answers

How to keep iPhone usage stat from grossly exceeding actual usage and draining the battery accordingly?

Sometimes, my iPhone 3G usage statistics are totally out of line with my actual usage and the battery is drained accordingly. This doesn't seem like a settings issue but rather some application or service getting "stuck" and not turning off when the phone is locked. Any ideas what I can do to address this? [more inside]
posted by Nelsormensch on Dec 5, 2008 - 7 answers

Third party camera battery?

After many years, my Canon PowerShot S20 needs a new Ni-MH battery. Canon sells a replacement battery for $49. Amazon sells a third party replacement made by Hi Capacity for about half the price. There are no user reviews for the cheaper batteries. Is the $49 Canon battery a waste of money?
posted by R. Mutt on Nov 24, 2008 - 8 answers

Help me figure out this strange laptop battery behavior.

Help me figure out this strange laptop battery behavior. [more inside]
posted by wfrgms on Nov 23, 2008 - 10 answers

Car battery woes

My relatively new car battery (~1 yo) seems to be giving me some troubles. Is this a sign of a weak battery or something more serious? [more inside]
posted by pilibeen on Nov 19, 2008 - 10 answers

Should I get a new battery or a new laptop?

Should I buy a new laptop battery or a new laptop? [more inside]
posted by bluefly on Nov 15, 2008 - 15 answers

Four Years of Dedicated Service

Powerbook G4 (hardware?) woes, followed by death of battery LEDs. [more inside]
posted by Monstrous Moonshine on Nov 4, 2008 - 4 answers

Help me avoid laptop death!

My computer is flaking out on me (perhaps due to my NVIDIA driver?). I can't get it to a tech support place until Thanksgiving! Help! [more inside]
posted by karyotypical on Oct 11, 2008 - 9 answers

why yes, I do intend to wear them.

Looking for battery operated Christmas/LED lights with the smallest possible battery pack. [more inside]
posted by Lucinda on Sep 29, 2008 - 8 answers

How accurate is this dashboard light?

The "battery not charging" light on my dash went on; the mechanic told me I need a new alternator. Now the "battery not charging" light has turned itself off again. Does this mean my battery is, in fact, charging? [more inside]
posted by fermion on Sep 26, 2008 - 6 answers

How can I prevent my car battery from being stolen?

I live in a busy downtown area with street cleaning every other night. As such, I am required to move the car each night, and sometimes end up parking it on a street that is notorious for car theft/etc. Lately, somebody has been somehow popping my hood, wrenching off the battery cover, and stealing my car battery. [more inside]
posted by prior on Sep 25, 2008 - 8 answers

Can I charge a digital camera battery from America in a different country?

Can I charge a digital camera battery from America in a different country? [more inside]
posted by supercrayon on Sep 23, 2008 - 6 answers

Do I really have to shut off the ac in the car?

My girlfriend swears that you have to shut off the AC and then the fan and then the car. Otherwise, you kill the battery AND hurt the AC. Is any of this true? [more inside]
posted by smersh on Sep 20, 2008 - 31 answers

square peg, round hole

i may have injured the electrical system on my motorcycle. [more inside]
posted by nihlton on Sep 19, 2008 - 9 answers

Battery takes charge, but won't work!@#$

Dell battery may be dead, or maybe it's software. I'm stumped. [more inside]
posted by yazi on Sep 19, 2008 - 8 answers

Battery problems: my fault or the car's?

Dead battery--is there a problem with my car? [more inside]
posted by phoenixy on Sep 13, 2008 - 12 answers

Why Do 9v Batteries Suck?

So the modern practical uses for these are in guitar effects, alarm clocks, and smoke detectors. leave your effects on and they die in a couple of hours. as a backup to your alarm clock, it dies in four or five hours (not even powering the LCD). i have no idea how long these things last in a smoke detector, but my guess is the next housefire and i'm a dead man. why do these batteries suck so bad? why do we still use them? why hasn't science come up with anything better?
posted by camdan on Sep 9, 2008 - 18 answers

Too flat too soon, too bad?

How long does your iphone (3G) battery last? [more inside]
posted by gergtreble on Sep 9, 2008 - 24 answers

How to remove a stuck battery cap from a Mag-Lite?

The battery cap on my Mag-Lite is stuck. Any ideas as to how to remove it? [more inside]
posted by Ziggy Zaga on Sep 1, 2008 - 9 answers

Why won't my car start?

Why won't my car start? [more inside]
posted by torpark on Aug 20, 2008 - 25 answers

Deep Woods Rockin'

I'm looking for a simple "let's listen to music while we're camping far away from our cars" power solution. [more inside]
posted by Overzealous on Aug 12, 2008 - 19 answers

What battery do I need?

Googlefu = fail. Answer not in owners manual. What is the cold cranking amps rating for the battery which is recommended for the 2002 Nissan Sentra SER Spec V, 2.5 L. Or alternatively, what battery do I need to buy. [more inside]
posted by yoyoceramic on Aug 2, 2008 - 10 answers

What's mah mAH?

I need to buy a new battery for my Dell Inspiron 6000, and I've found two options: A and B. Obviously A is more expensive, but it has a higher mAH. I by default prefer the longest battery life possible, but I also don't know jack about laptop batteries. Searching the google has given me only whiffs and bits of information. Tell me hive, is 8000mAH better than 6600mAH enough to warrant $20 more? What can I expect from each, very roughly, in terms of hours of continuous use between charges? Also, feel free to inform me that A and/or B are terrible sites I should not buy from.
posted by ictow on Jul 28, 2008 - 4 answers

Year old Macbook running extra hot/battery draining fast. Help

Year old Macbook running extra hot/battery draining fast. Help [more inside]
posted by rbf1138 on Jul 27, 2008 - 8 answers

Life Expectancy Of A Cell Phone Battery

Could someone give me a rough estimate on how long I can expect my cell phone battery to last. I am sure there is a wide variance, but I am just looking for an average life expectancy. I use it every day and charge it in the evening. I use it approximately 3 hours a week. Thanks in advance.
posted by Mckoan1 on Jul 24, 2008 - 6 answers

Modifying electronics.

I bought the POWER TOUR Amp and it's really awesome. However I want to modify it and I don't know much at all about electronics. [more inside]
posted by PowerCat on Jul 5, 2008 - 8 answers

What battery does the Robin's Egg Vibrator use?

What battery does the Robin's Egg Wireless Vibrator use? If anyone knows the type of batteries in its remote, then even better. For reference, this is the most comprehensive list of batteries I know of. Thanks!
posted by harwons on Jul 2, 2008 - 7 answers

Will a universal Craftsman charger work with my 15.6V drill?

Will a universal Craftsman charger work with my 15.6V drill? [more inside]
posted by ets960 on Jul 1, 2008 - 2 answers

Why is ther no bat-acitor (hybrid battery/capacitor)?

Why is there no bat-acitor? (hybrid battery/capacity w/best of both) Is there some limitation in physics, chemistry, materials, etc. that prevents it, or has it just not been invented yet? [more inside]
posted by bartleby on Jun 10, 2008 - 24 answers

Is it my iBook battery or something more sinister?

iBook G4 battery is out of juice. Computer won't start up... even when AC adapter is plugged in. Is there something else going on? [more inside]
posted by kmtiszen on Jun 10, 2008 - 7 answers

Watts a volt, anyway?

Can anyone help me figure out what kind of power source I need for my outdoor art project? [more inside]
posted by xo on Jun 5, 2008 - 10 answers

Vaio gives "system timer error"

My laptop gives a "system timer error" and so I probably need some guidance in replacing my laptop's CMOS battery [more inside]
posted by daksya on Jun 3, 2008 - 9 answers

Where can I get a cheap(er) battery for my aging 2 year old Macbook?

Where can I get a cheap(er) battery for my aging 2 year old Macbook? I have tried Apple, but the price is pretty steep! I'm in Australia (Sydney specifically), if that makes a difference.
posted by ranglin on May 29, 2008 - 6 answers

Help with Battery Backup

Does anyone know where I can find the operating software and a manual for an HP Powerwise 2100 Battery Backup? APC bought HP's battery backups unit in 1994, but this unit seems to work great. I want to control it from my PC but have no software and no instructions. I've visited all of the manual sites and software download sites I can think of.
posted by CollectiveMind on May 27, 2008 - 1 answer

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