Dead six-year-old car battery last night. Replace? [more inside]
My father-in-law needs a CPAP machine to sleep well. What do you recommend for a portable, battery-powered version? [more inside]
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]
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]
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
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]
Or what do I have to look for on a portable generator to recharge my camera and tablet. [more inside]
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?
My macbook pro battery life is awful, and it shouldn't be. What can I do about that? [more inside]
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]
Greetings - I "inherited" a MacBook Pro last year. It was a Apple MacBook Pro Core 2 Duo 2.4Ghz from Spring 2008. So it was 4 years old when I got it and I was told that the battery was dead and as long as I kept it plugged in, it worked fine, however, I would need a new one. So last year, I purchased a new battery and installed it. However, I am still noticing that the battery life is horrible. It seems like when I am using it to type a document or check emails and surf the web, etc, I literally can watch the battery drain. I would assume that it might hold a charge of about an hour and a half maybe? Is there any way I can "test" it to see what my actual battery life if? To ensure there isn't something else going on? Any suggestions would be helpful. Thanks,
My Acer 5742 has become choosy about which plug sockets it will charge from. Why? Do I need a new battery? [more inside]
Interested in a Netbook or lower power laptop that runs cool (doesn't require external cooling like this) and has long (6-8 hour) battery life. Would like to run Windows 7 so Chromebook is not a good candidate for me. And of course want to come in around $200. I know there a lot of candidates here but would really appreciate user's real life experience. Thanks.
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]
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?
Please help me think through this car battery problem. I have a new battery, but no car power. Details inside. [more inside]
I have an iPhone 4 and since the iOS 6 update, my battery life is horrible! Help! [more inside]
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]
Which batteries can I purchase to replace the original from my scooter, a 2007 Honda Metropolitan? [more inside]
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]
How many AA batteries would it take to run a 3rd-gen iPad for one hour?
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]
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]
Is it worth replacing my UPS battery or buying a newer UPS that better fits my need? [more inside]
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]
Fellow photographer Mefites, what are/were your experiences with this Flashpoint battery grip on a Canon EOS T1i? [more inside]
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]
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]
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]
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?
New Year's edition of "my macbook pro is suddenly slow"... [more inside]
What is the best way to regularly drain 6-8 AA batteries? [more inside]
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]
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?
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.
Battery or Alternator? Clues inside. [more inside]
Which Macbook battery to buy on eBay? [more inside]
Looking for a specific Android battery level widget... [more inside]
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]
How often, and for how long, should I turn over my car's engine in order to preserve the battery? [more inside]
Questions about priming a new battery to maximize its efficiency. [more inside]
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]
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).
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]
Does leaving my phone's car charger plugged in to the car at all times significantly drain my car's battery? [more inside]
Why isn't my son's science fair project working? His classic potato battery isn't producing any electricity. [more inside]
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]
I punctured the sealed bag encasing my Ipod replacement battery and I can smell a sweet gas. Nice right? [more inside]
(Probably) really basic car question: my car is taking longer to start than it used to. Battery problem or something else? [more inside]
Dead car battery, cable isn't long enough to reach - but I have another cable. Can I combine the two? [more inside]
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