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I think you mean 35Ah (Ampere-hours)
This depends on the amount of energy that can be stored.
The amount of energy in car batteries is usually expressed in Ah, and depends on the voltage of the battery. In Europe, mostly 12V, 40Ah to 70Ah.
Let's say a battery of 35Ah 12V (in reality, a fully charged lead-acid battery will have 12,65V over its open poles) needs to be fully charged.
35Ah means tha it can, theoretically, deliver 35A at 12V during 1 hour. That's is a total power storage of 12x35 = 420Wh = 1512kJ (kiloJoules)
The amount of current flowing into the battery will charge (by an electrochemical process) the battery. So it's not really the voltage of the battery, but the current that's important. Unless you know the internal resistance of the battery, You can not really calculate this.
But now practical. You can charge a car battery at a pretty high current, although quality deteriorates with higher currents (that's why professional chargers will use a
pulse charger) , so your 13,5V will not be too high. Car generators can deliver up to 16Volts to a battery.
What I suggest is this: measure the battery voltage, load the battery with the 13,5V, and measure again after 10 minutes. Check the voltage of the battery, and do not exceed 12,5V.
Even better: Load the battery, and meanwhile measure the current and voltage. Now you can calculate the internal resistance of the battery.
A word of caution. Car batteries contain a highly poisonous fluid, a mix of water an sulfuric acid. Don't play around with it, DON'T SHORT IT, don't reverse polarisation, This fluid causes severe burns. Be careful.
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I'm using a 18.5 volts 3.5 amps charger to charge a 12 volts battery I want to reduce voltage to 15 volts and current to about or a little less than 2 amps How to reduce charging current and voltage?
You need a regulator.
What charger do you need for a 24 volt battery?
The formula you are looking for is I = W/E. Amps = Watts/Volts. 300/24 = 12.5 amps. A good charger with an output of 15 amps will do the job nicely. The time that it will take to charge the battery will depend on the amp/hrs of the connected battery and the state of discharge that the battery is in when charging starts.
How many kwh are used by a 12 volt battery?
Every battery has a rated life in kilowatt hours or ampere hours. There is no way of knowing what battery you are referring to. To supply one 1000 watts (1 kilowatt) of energy at 12 volts, the battery must supply 83.33 Amps at 12 Volts. If battery supplied 83.33 Amps for one hour then 1 KWh would be the result.
How do you convert watts into amperes?
To convert watts into amperes you divide the circuit voltage into the watts. Amps = Watts/Volts. <<>> Converting Watts to Amps The conversion of Watts to Amps is governed by the equation Amps = Watts/Volts For example 12 watts/12 volts = 1 amp Converting Amps to Watts The conversion of Amps to Watts is governed by the equation Watts = Amps x Volts For example 1 amp * 110 volts = 110 watts Converting Watts to Volts The conversion of Watts to Volts is governed by the equation Volts = Watts/Amps For example 100 watts/10 amps = 10 volts Converting Volts to Watts The conversion of Volts to Watts is governed by the equation Watts = Amps x Volts For example 1.5 amps * 12 volts = 18 watts Converting Volts to Amps at fixed wattage The conversion of Volts to Amps is governed by the equations Amps = Watts/Volts For example 120 watts/110 volts = 1.09 amps Converting Amps to Volts at fixed wattage The conversion of Amps to Volts is governed by the equation Volts = Watts/Amps For Example, 48 watts / 12 Amps = 4 Volts Explanation Amps are how many electrons flow past a certain point per second. Volts is a measure of how much force that each electron is under. Think of water in a hose. A gallon a minute (think amps) just dribbles out if it is under low pressure (think low voltage). But if you restrict the end of the hose, letting the pressure build up, the water can have more power (like watts), even though it is still only one gallon a minute. In fact the power can grow enormous as the pressure builds, to the point that a water knife can cut a sheet of glass. In the same manner as the voltage is increased a small amount of current can turn into a lot of watts.
How many volts in a watt?
It depends on how many Amps (current) are applied to the voltage. Watt = Volts x Amps. e.g. 12 volts @ 5 amps = 60 watts
Do you check a battery's charge using volts or amps?
Volts. 12.6 volts = Full Charge 12.4 volts = 75% Charge 12.2 volts = 50% Charge 12.2 volts = 25% Charge
How do you charge battery with ac power supply I have a 12 volt dc battery and im trying to charge it with a power supply rated at 0-40 volts 0-5 amps?
You should charge the battery with the proper battery charger. The battery charger should list what types of batteries, voltages, and charge rates (amps) it is compatible with. Make sure this matches the information on the battery to be charged. Using the incorrect battery charger can cause battery explosion, leaking, or fire.
What setting do you set your charger on to charge a car battery?
I would recommend a slow charge of 10 amps at 12 volts.
Is a battery a kilowatt?
A battery stores charge and supplies voltage and current. A kilowatt (KW) is a measure of power = Volts x Amps.
Can i use a home charger that has 3to 12V300mA output to charge my car battery at home?
No. The charger for a car battery has an output measured in amps. You have an output measured in milliamps. There are 1000 milliamps to 1 amp. Way too small.
How many volts does a battery need to start a engine?
a battery should be reading 12 or 13 volts at full charge you would need it over 10 volts but its hypothetical as it depends on the engine size10 To add it's not the voltage that turns the starter motor it is the amount of what is called cranking amps or cold cranking amps cca which refers to the amount of amps when 32 degrees Fahrenheit or up. If you have below the specific amount of amps for your starter it will click, turn but very sold, or do nothing. A 12 volt battery typically needs 400+ amps to start the car. While 5 volts means your battery is dead having 12 volts does not mean your car will start.
What should battery charger needle read?
That depends on the battery, and the charger. my charger has different settings for higher amps to give a faster charge or jump. A fully charged battery will show 12.6 volts. The charger will read it's maximum amperage if the battery is totally discharged. A fully charged battery will read 12.6 volts with a digital DC volt meter. If it reads 12 volts it has less than 25% charge.
I'm using a 18.5 volts 3.5 amps charger to charge a 12 volts battery I want to reduce voltage to 15 volts and current to about or a little less than 2 amps How to reduce charging current and voltage?
You need a regulator.
How do you charge a battery in a 2002 Honda Shadow Ace?
Check the electrolyte levels and fill up if necessary with battery fluid. Hook battery up with a charger. Begin with 12 Volts and low amperage, 2 Amps, then increase to 3 or 4 amps. Battery should be fully charged in 4-6 hours.
How many amps do you need to charge a car battery?
To charge a car battery you need aproximatly 8000 amps To charge a car battery you need aproximatly 8000 amps
Why does an alternator not over charge the battery?
Alternators have a built in regulator that keeps the voltage at about 13.5 Volts. Depending on the load, the alternator may be putting out anywhere from just a few amps to full capacity of over 100 amps for some alternators. Batteries charge at anything over 12 volts and handle about 14 volts without any problem. You start causing problems for your battery and other parts of your electrical system when the voltage goes over about 15 volts. But then, if your regulator is working right that should never happen. The current (amps) of an alternator does not vary. if it is a 100 amp alternator, the amperage coming out is always 100 amps.
Can 600 va ups charge 145 ah battery?
You would have to know the voltages of the battery and the UPS to know for sure. For example if the UPS' output is 120 volts, then it is capable of 5 amps of output. If the battery is also 120 volts, then it would take the UPS 29 hours to fully charge the battery. However if the battery was rated at 220 volts, then the UPS would never completely charge the battery. The source of the charging voltage must exceed the battery's voltage in order to fully charge it.
