batteries

I'm having a brain fart: some years back, I saw little gizmos you would plug into your lighter to maintain clock & radio settings when disconnecting your battery......the kind I'm thinking-of ran on a couple flashlight batteries - just enough so you didn't lose settings. What were they called...

With the amount of vibration and movement a typical car suspension endures on a drive, you'd think someone would try to harvest that energy with kinetic generators. Whaddya mean MicroGen Systems already did that? More »

I am looking into buying another battery for my motorola droid because my battery life loses its juice fast. sense I have been looking for one there are many different kinds and I dont want to buy the wong kind or accidentallytly the same kind. what would you recommendend?

the dvd player is from fisher price. i can find the right batteries but not the connecter to go with it. thanks in advance.(a purchase website would be nice)

...inside)? Not the solar-powered ones, although some of those have solar panels for solar powering. I'm talking about the ones where it has a wheel/lever. You have to spin the wheel/lever several times to charge the gadget. I have this kind of gadget for a radio and flashlight.

I have a 2500 watt system, and i want to run two batteries. One battery is a normal duralast gold starting battery. The other battery might be a kinetic or an stinger. Could this burn out my alt. I want to run two batteries because i cant find a side post battery that is strong enough for my...

HI this is my first time owning a laptop of my own. I've had it since last summer, but now, it had just shut down and it tells me that the battery needs to be replaced. I am currently charging the computer so that I could use it. If I change the battery, would the computer be like it's brand...

I'm going on a 19 hour trip on a charter bus. No chargers, no nothing. I will bring my Samsung Galaxy S and iPod Touch and would like to be able to charge them with a battery charger. Do you have any you use or highly recommend that are very reliable charges and will lost me throughout the trip...

it's just broken? It just wiggles twice when it should be more, and then says 'that was funny' at the end without laughing. Thing with the batteries is that i have to rip the toy's fabric open to maybe be able to change them. It's a gift and I ordered it online, I don't want to rip it open if...

Researchers at the Korea Advanced Institute of Science and Technology (KAIST) may be on the cusp of creating something special: Bendable batteries that could have better performance than their stiff, inflexible cousins. More »

I have wired an isolator for 2 batteries in my car but thats just for 2 batteries I can't seem to find isolators easily that handle more then 2 batteries total unless i'm using wrong keywords. I currently have the stinger 200amp isolator it has 4 prongs on it if I wanted to connect a 3rd...

Ok i need to add another battery for audio system and the 6 fog lights and a few other things. I'm reading up on Isolators how they separate the 2 batteries, but nothing mentions anything about the 2nd battery being charged. Does it get charged the same as the starting battery? It seems like the...

I have this back massager and i want to know how to change the batteries. Here is what it looks like: http://www.amazon.co.uk/Homedics-Atom-Handheld-Massager-PM-35BXPink/dp/B0014ZB22K

I need engineering help with the electrical components. It'll prob require some kind of transformer and resistors but I don't know which I'm trying to add it to a GigaWare mini projector. It is usually plugged into the wall but I've always wanted it to be wireless.

96 skidoo

I have a customer who used to use CDMA flip phones as modems in the field. Motorola flip phones had extended-life batteries. Regular modems don't have their own power source -- they need to be plugged in.

Installing a whole new system in my car, consisting of, iva-w505 head unit, 2x mrp-m2000 amps, 2x type x 12" subs(1000/3000w each), and spx-17pro for door speakers(100/300w each x 4 for each door = 400/1200 + 2 subs = 7200?, Do i need a car battery and if so, what and how many? I drive an 02...

...first had it it would last longer? I use it alot but it used to last the whole day now it's goes out every 2 hrs about and I use it the same. It's only 3 months old. I know they wear out fast but this is to fast and I shut down most of the stuff when not in use.

When storing a cell phone that you are not using should the battery be kept at full charge?, half charge or empty?, and should it be kept attached to the phone or de-tached from it.

Looking for a cheap aftermarket battery for my G2 as a spare....but am having a hard time matching up what I need. It looks like they both use the same size/style, so thinking an Evo will fit in the G2, but the mAh is 1500 on the Evo and 1300 on the G2. I guess I'm wondering if 1500 mAh battery...