Caveat Manufacturers test and rate batteries according to a certain discharge time -- in the automotive industry, usually 20 hours. In theory, that doesn't affect the actual amp-hour rating, but it does make a difference on how long your battery will last if you consistently discharge it out...
Before attempting to convert the AC power to DC, you must first determine the DC voltage required by the device you wish to operate. Most electronic devices will have the required voltage printed on the label or in the user manual. Make sure to take note of this voltage before proceeding ...
An alternator is an electromechanical device that converts mechanical energy into electrical energy. An alternator is so named because it produces alternating electrical current. This energy can be converted from one voltage to another using a transforme
A 12-volt battery is the type you find most frequently on motorcycles and electric lawn equipment, so if you're going to use a voltmeter on any 12V system or power source, this is the most likely candidate. Although you can use a dedicated voltmeter for this, you're more likely to use...
I couldn't find anything that looked like it would work for my application. I didn't want to buy a different battery type and charger. So I decided to try making my own adapter. Instead of 3-D printing the adapter, I decided to use good, old subtractive manufacturing to make mine....
Check out this handy list of suggestions that ought to help you better assess the vehicle you take on a test drive. It's time to go beyond kicking the tires.
If the battery is dead, you cannot turn over the engine to start it. If the bearings that allow the crankshaft to turn freely are worn out, the crankshaft cannot turn so the engine cannot run. If the valves do not open and close at the right time or at all, air cannot get in and...
Use a three-phase battery charger to recharge the battery. These are designed for lead acid batteries and will automatically slow charging as the battery nears full charge, preventing overcharging. Make sure the charger is turned off and connect the positive lead to the positive battery terminal ...
Here's my battery hooked up to a flashlight bulb to make a simple circuit. I've unwrapped a paperclip to make a piece of connecting wire and I'm holding that between the bottom of the battery and the side of the bulb. If you look closely, you can see the bulb is shining. That'...
“You either get a jump-start from someone else’s car and drive or idle for at least 20 minutes to charge up the battery or use a battery charger.” To jump-start your car, you will need two things: jumper cables and a car whose battery is not dead. ...