I'm trying to wire up our Burning Man bikes with rechargeable USB batteries as opposed to bulky, wasteful, PITA AA cell batteries. I'm having trouble finding something that will output the right voltage. Halp? [more inside]
As part of an art project, I would like to be able to use my Canon Selphy CP910 portable printer to print about 30 4x6 prints while at a remote campsite for 5 days. I was thinking maybe I could get a portable, rechargeable UPS like this. How do I figure out how many prints I can get out of something like that? Is that the best option? [more inside]
I'm looking for a clock radio with these features: radio, battery powered (not battery backup), alarm, and headphone jack. [more inside]
I'm wondering if there exist any (portable) consumer electronics devices - so like music player, mouse, flashlight, audio recorder - that take any chemistry rechargeable AA or AAA batteries, and can recharge them right in the device. [more inside]
Or what do I have to look for on a portable generator to recharge my camera and tablet. [more inside]
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]
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?
Does leaving my phone's car charger plugged in to the car at all times significantly drain my car's battery? [more inside]
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?
How much will BitLocker eat my battery? [more inside]
Looking to power (light) a Himalayan Salt Lamp for about 48 hours, without using an outlet. [more inside]
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.
Dead battery--is there a problem with my car? [more inside]
I'm looking for a simple "let's listen to music while we're camping far away from our cars" power solution. [more inside]
Will a universal Craftsman charger work with my 15.6V drill? [more inside]
Can anyone help me figure out what kind of power source I need for my outdoor art project? [more inside]
Why does my MP3 player run out of battery power so rapidly when I connect it to an amplifier and speakers as versus when it is connected to my headphones? [more inside]
Coincidence, or a problem with a wall outlet in my new apartment? My cell phone and laptop batteries are suddenly holding charges for shorter and shorter periods of time. [more inside]
My brother is looking for an inverter to use with a deep cycle battery while camping. [more inside]
Calling electricians: can I use one of those "battery chargers" they sell at Auto Zone to power a small appliance that needs 12V? [more inside]
Recommend a portable battery-driven power outlet, ideally suited to plug a cash register into all day at conventions. [more inside]
Help me understand/explain anomalous laptop power adapter and/or battery behaviour. Why would it be dead, then fine? Why would the system crash when it should hibernate? [more inside]
My laptop isn't getting along with it's power supply. I thought it was the power supply, but apparently not. Help please! [more inside]
Another question about NiMH rechargeable batteries: Can I use brand A batteries in a brand B charger? Also, how can I tell a 'smart' charger from the timed version I hear tell of? [more inside]
WindowsXPFilter: How can I make the power meter icon on my new laptop display the time remaining in addition to the percent of battery power left? [more inside]
Can you mix rechargeable batteries with different mAh ratings? [more inside]
Power Inverters for cars - the thing you plug into your cigarette lighter, with a regular wall-plug on the other end. I bought one last night, for use with gadgets on a road trip. Thing is, they offer two types, excuse the B-st B-y links: this one (95W), which I bought, and a stronger one (150W) here - Question is, I went with the smaller cheaper one but I know nothing about power use for things. Should I return it for the larger, or is this sufficient power to charge a laptop, camera, PSP, ipod, etc? Mostly concerned with safety to equipment and car's electrical system. THANKS FOR YOUR ADVICE. [more inside]
Laptop power management. [more inside]
Are rechargeable NiMH batteries a good idea? [more inside]
What is "modified sine-wave" power, and what will it do to my electronic devices? I have a portable Xantrex battery, and it came with a warning that certain rechargeable devices may not be compatible with its modified sine wave output. [more inside]
BatteryFilter: I've got a Dell Latitude C800 that I've been nothing but happy with, until recently. Of late, the power seems to be iffy at best, switching at random between AC power and battery power... [more inside]
I have a Dell laptop with a dead battery and no AC adapter at hand. Can I network the Dell to a Vaio and run the Dell off the Vaio's power supply?