Batteries

No.

No.

I suppose you're referring to a riding mower. As you didn't specify the age, make, etc, this will be an educated guess. If the mower is kept in a controlled environment, such as a garage with heat during the winter months, the battery should hold charge for years. If it is kept in a shed outside, then you'll probably need to charge the mower's battery every spring. All you need is a battery charger with jumper cables. Make sure it is capable of charging you're mower's battery.

The battery is charged by a generator or magneto. It is located under the flywheel.

You bet! It's called a flashlight, too. Some camping lamps use fluorescent bulbs and batteries to emit about the same amount of light.

If 3 identical 45-ohm resistors are connected in parallel, the net effective resistance of the bunch ...
and the load seen by the battery ... is 15 ohms. The current supplied by the battery is

60/15 = 4 Amperes.

(This assumes that the battery is capable of supplying 4 amps at 60 volts, or 240 watts !)

12 V - probably, although ther are exceptions. 6 Amps - ?? 6 Ams would be a measure of a current draw, and a battery is a current source. A car battery might have a capacity of 60 amp hours or thereabouts.

If it will not hold a charge it has a dead cell and must be replaced. If it is just running down overnight disconnect the ground cable in the evening to make sure something is not on pulling power from the battery.

Possibly if all that is wrong was it was low of electrolyte. Add Distilled water and not tap water. Do not pour what is left out, just add to it.

Lightning!

plutonium-238 (note the different isotope)

It is usually caused by a bad alternator.

BCI group size ( 65 ) 650 cold cranking amps ( CCA ) is the size battery from the

factory

a vented battery is vented and the regular battery is regular

No.

those 3 cables are the same on all vehicles, one coming from the alternator, one going to the starter, and the last going to the fuse box.

Usually a battery will leak because of overvoltage, overtemperature or a bad battery cell.

Last time this happen to me, it was a sign of the battery going bad. It kept stop charging at shorter and shorter period until my battery can barely hold 10 minutes worth of power.

A lead acid cell has an off charge/no load voltage of 2.2 volts, so that 12 cells in series will have a voltage of 26.4 volts. When you float this across a charging supply, standard practice is to increase the voltage to 2.3 volts per cell, so that the total voltage becomes 27.6 volts.

Airplanes normally have a 27.6 volt DC system, and larger aircraft also have a 115 volt 400 Hz system. Also, rare these days, possibly a 115 volt wild frequency system.

Note that the so called 12 volt system in a car is actually 13.8 volts.

You can use modern size C

There are a few reasons why a car battery might not hold a charge. One is that the battery has gone bad, and needs to be replaced. If you have any basic skills, you can buy a car battery at an auto supply store, and install it yourself (being careful to get the positive and negative wires hooked up correctly).

Second is that the wires leading from the Alternator to the battery or the battery posts and clamps could be corroded, and not making good electrical contact. If you notice corrosion, you can remove the clamps, clean them and the posts with a wire brush and wipe clean with a dry cloth, then replace them. If the battery is dead, it might require a charge from a charging device, or a boost from jumper cables to another vehicle to get the car started. Then you can let the car run and see if the battery holds the charge after that.

The third reason, and most likely is that the Alternator is bad, and is not sending a charge to the battery. You can have a mechanic at a reputable auto repair shop or dealership test the alternator, and if it is bad, you can usually buy a new alternator, or a rebuilt one at a lower price.

[Also: if your car is not starting, be sure it is because of the battery. It could be that the starter or starter solenoid has gone bad. Other electrical or fuel problems might be the cause as well.]

About 60% of the weight of an automotive-type lead-acid battery rated around 60 Ah (8.7 kg of a 14.5 kg battery) is lead or internal parts made of lead; the balance is electrolyte, separators, and the case. (Wikipedia)

Yes it could over heat and explode. Don't do it.

The parts of the battery that stick out are called the terminals. That is where you attach the wires to the battery so you can use the electricity from the battery.

Not really. And I wouldn't be too worried about the amount of radiation you're receiving, unless your phone's battery contains U-238 or some sort of Palladium. Try calling your service provider and asking what kinds of fissile materials are present in the current model of phone you're using; I'm sure they can help you.

Yes, but you will need to find a battery supplier that can spot weld the 12 x 1,2V 'C' SIZE batteries in the original form. There are a number of battery suppliers in Gauteng that can do this. Hope this helps.