How do I reduce the amperage of my battery?
Lowering amperage is done by applying Ohm’s law, given by the formula I = V/R, where I is the circuit’s total current in amperes, V is the voltage and R is the resistance. Add resistors to the circuit to increase the total resistance. A higher resistance results in a lower amperage.
Can a battery have too many amps?
No. As long as you use the correct voltage, the starter will only draw the amount of current that it needs and nothing more. Higher capacity (Cold cranking amps) will help to start the car in colder weather.
What happens if I put a lower CCA battery in my car?
If your battery has a CCA rating which is too low, the motor won’t receive the current it needs during the start up process. This can cause heat and additional stress on the parts of the motor as the electric motor will be starved of current.
What happens if my car battery voltage is too high?
When your battery voltage becomes too high, you can fry your vehicle’s system. Car computer systems are directly affected by the battery. With the high voltage causing inconsistent charges to the entire car, the computer system can be damaged.
How can we decrease current?
The current in a circuit is directly proportional to the electric potential difference impressed across the circuit and inversely proportional to the resistance of the circuit. Reducing the current can be done by reducing the voltage (choice A) or by increasing the resistance (choice D).
What happens if the amps are too high?
Amperage Provided versus Amperage Required
Device may fail, may run or charge slowly, power supply may overheat, may damage the device being charged — all depending on the magnitude of the difference. The amperage provided by your charger must match or exceed what the device being charged requires.
CAN YOU HAVE TO MANY cranking amps?
In general, one can always exceed the CCA spec. You probably do it on a warm day, with a charged battery. Having more potential current available will not hurt the car’s electrical system.
Will the wrong size battery damage a car?
Several problems could arise from using a battery that is larger than what your manufacturer recommends. … Manufacturers precisely match their alternators and batteries to the vehicle’s power requirements. A mismatched battery/alternator combo could cause your alternator to overheat and shorten its life.
Can I use a battery with lower cranking amps?
It is generally not recommended to use a battery with a lower CCA than is recommended. Especially in very cold climates, using a lower CCA battery can lead to performance issues. … Technically a car can use a battery with a lower CCA, but it can damage your engine. Your ignition system may also suffer.
How many cold cranking amps do I need?
The standard recommendation is a battery with at least one Cold Cranking Amp (CCA) for every cubic inch of engine displacement (two for diesels). CCA rating is an indication of a battery’s ability to deliver a sustained amp output at a specified temperature.
Is more cold cranking amps better?
In general, for both CCA and RC, the higher the number the better. However, if you live in a cold climate, the CCA rating should be an important consideration in choosing a battery. Conversely, if you live in a high heat climate, you don’t need as much CCA.
How do you fix an overcharged battery?
In most cases, your battery has been overcharged, it won’t be repairable. Taking a battery apart to replace the lead plates is just not cost-effective. However, you can recondition your car battery by using Epsom salt and distilled water.
Can a car battery be overcharged?
Continuously overcharging your car battery will definitely decrease the general lifespan of the battery, meaning that the battery will hold less electricity every time it charges. This would then lead to one minor problem after another; unnoticeable at first, but when it is noticeable, it’s usually too late.
Is 14.7 volts too high?
Charging voltages over 14.7 volts can prematurely dry the battery by boiling out electrolyte, and increase risk of a battery hydrogen gas explosion. … 14.8 would start to be a worry (there might be liquid or corrosion on the battery) and 15 volts would be a real concern, but 14.6 is fine.