Get a charging kit from an auto parts store. This should include a gauge (or gauges) and freon. Your '98 uses the new type of freon so you don't have to worry about conversion. Follow the instructions on the kit. You will need to locate the charging ports (high and low side) and put the proper amount of freon in the correct port until you reach the right pressure. You'll need the engine running and the A/C on high while you do this. Don't overcharge - you need to use a gauge.
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If the system is empty you probably have a leak so charging it back up will be like throwing money out the window plus you are discharging freon into the atmosphere. Take it to a qualified garage for testing and repair.
capacitor charges AC only because it allows ac only
as in dc f=0
so XL=2pifL=0
so an inductor can pass dc but not dc
but in ac f=something
Xc=1/(2pifC)=infinite
so one capacitor can store ac but not DC
The voltage in your house is AC. It is in the form of a sine wave that goes positive and negative 60 times a second. To charge a battery you need DC so you do an AC to DC conversion and then apply the DC to the battery charging circuit that applies the correct charging current to the battery and checks on the state of the charge.
Lightning is static electricity. It's a buildup of charge, and it is facilitated by charge separation. In that light, it is DC.
Inductors are low pass devices, they conduct most easily at low frequencies. DC is the limiting case for low frequency AC: i.e. DC is the lowest possible AC frequency, zero Hz and thus conducts best through an inductor. Capacitors are high pass devices, they conduct most easily at high frequencies. Infinite frequency AC is the limiting case for high frequency AC. Infinity Hz would conduct best through a capacitor.
resistance is the opposition to the flow of electric charge
Alternating current is more efficinent. It is wireless and more efficient than direct current. And it is safer. Plus Tesla is better than Edison