12v

  1. B

    Could I charge my 12v 2.5A bike battery and car battery 12v 44A by just...

    ...connecting with a 12v 6A transformer.? Could I charge my 12v 2.5A bike battery and car battery 12v 44A by just connecting with a 12v 6A transformer of 12v 6Amp or I have to buy a specified charger? Also, I have a bicycle operated with battery of 24v, how can i charge this battery? What if i...
  2. T

    30V to 12V dc voltage regulator?

    Hi there, I have a 30 V dc power supply. I want to have a 12 V output from this. Can someone suggest a proper way to do this? I couldn't find a suitable voltage regulator.
  3. A

    How to make an step up transformer. So that input DC 12v and Output Ac

    240V . It will must 80-100 A.? I want make An step up transformer for my inverter project...How many additional turn of coil will need in primary and Secondary position..................What will it Ratio Please help me...
  4. I

    DC generator with 12V without using permanent magnet?

    We need a simple DC GENERATOR project or prototype that will produce 12v and will light a small bulb. This project should not use a permanent magnet can u give us a procedure and the materials that we need if there is a video please send me a link thanks a lot for helping us in our project...
  5. V

    Winding Road Showroom: Free Stuff Friday – Optima Digital 12V Performance Charger

    To make up for it this week, we’re going to give away something particularly great. Any of you that caught our review of the Optima Digital charger a few weeks back, will know that this is one great giveaway.
  6. V

    Car Stuff: Optima Digital 1200 12V Performance Charger

    We were recently given the opportunity to test Optima’s new Digital 1200 12V Performance Charger. The Digital 1200 is significant as it’s Optima’s first crack at a battery charger and it has some impressive features and specs. As a division within the world’s largest battery manufacturer...
  7. S

    Building 12v dc power supply?

    I want to build 12v dc power supply, but i do not want to use 7812 regulator. So which transformer should i use to get 12v dc, after converting its ac voltage into dc through diode bridge and capacitor. 12v ac transformer or any other?
  8. J

    110v AC to 12v DC convertor needed!?

    I need a convertor that can take 110 AC (wall outlet) and convert it to 12v DC (automotive). I prefer it to have alligator clips at the 12v supply end as I'm using it to test stuff. Not sure what I need and what amp unit to get. I want to test everything from a single light bulb to ??? Is there...
  9. H

    My 12v car stereo wiring has no constant, what do i do?

    when i tested my wiring today, the 12V battery (orange wire) had no flow. my radio stopped working 2 weeks ago and ive been trying to install a new one ever since. Im at a wits end before i take it to the shop even though i just got the car and would like to learn to make my own repairs. HELP!
  10. B

    What are some gadgets I can run on 150 watts of 12v DC power?

    I made a human powered water still for a project at uni, someone peddles on a bike which turns a gold trolley motor via a gearing system, the power is then used to run a heating element which boils water which is then distilled. I have to give a presentation of the project in a couple of weeks...
  11. A

    Is it safe to use a 12v car 400amp booster on my 12v motorcycle?

    Hi. I am stuck near Fort William, Scotland with a battery that for the 1st time refuses to start the bike. I have been loaned (by a very nice person) a Challenge 400amp power booster. Will it be safe to use on my 12v CTX7L-BS battery which is on a 250 Honda rebel? I am heading for...
  12. W

    Can I recharge my Motorbike Battery(12v) by using Mobile charger (12v).?

    I am wondering if could recharge my motorbike battery by using 12v mobile charger?
  13. T

    Please is it important to get a 12v DC generator with low or High RPM to run a Wind

    Turbine. A bit confused? Please is it important to get a 12v DC generator with low or High RPM to run a Wind Turbine. A bit confused?? Which is Important, the RPM or Watt of the generator? I presume with a 12v DC generator, I do not need a charge controller for the batteries?
  14. W

    Can I recharge my Motorbike Battery(12v) by using Mobile charger (12v).?

    I am wondering if could recharge my motorbike battery by using 12v mobile charger?
  15. D

    I have a 2002 chrysler concorde and the 12v power outlet doesn't work.?

    I want to use it to charge my ipod, but when I plug the charger in, it doesn't light up. I'm an idiot and don't know how to fix stuff, is there hope for me? I checked the little blue 15 fuse and it seemed to be intact.
  16. R

    how to build a elevator with 2 12v dc motors?

    help fast thanks!!!!!!
  17. S

    Car Amplifier- Can you hook up an amp to the 12v accessory socket?

    Ok, so I have an SUV in the back and would like to get a small box with a 12"subwoofer in it, powered with an amp. In the back of the suv where this box is going, there's a 12v accessory socket next to where I'm going to put the subwoofer. I will be able to disconnect the subwoofer in the back...
  18. C

    What size 12v battery do I need to run this stereo on?

    Hello, Please excuse my electronic handicap here. I am looking to installed this small 250W stereo on a non-powered boat, and run it off a motorcycle battery. My question is, I know batteries are usually rated as amp/hr. And I need help figuring out how many amps/hr I need. this is the stereo...
  19. R

    how to convert 24v to 12v for my car stereo player?

    my car has 12 v battery, i bought a new car DVD player but i am getting 24 v at the stereo player (since my old cassette player needed 24v) how should i convert it into 12v for my new DVD player plz advise
  20. U

    Cheap place to buy NEW 12V 2A DC Universal Regulated Switching Power Supply?

    Where can I find a great deal online for NEW 12V 2A DC Universal Regulated Switching Power Supply
Back
Top