Hi everybody,
one day i bought 12v battery for my romot control car key.Everybody know that now available romot control key for car.This battery was very small and 12v.I confused when i saw
battery 12v.And i removed my car battery and i connected 12v small battery in my car but why this small battery cant start my
4 cylender car.Both cell was 12 voltage.
Thank you.
2007-06-02 05:31:08 · 5 answers · asked by raazray 1 in Science & Mathematics ➔ Engineering
While 12V is the same voltage, what is different between the car battery and the small battery is the current capacity, AH. A car battery has probably 60AH or more and that can sustain the heavy starting current drawn by the self starter when you turn the ignition on. The toy batteries have a small fraction of an AH (Ampere Hour) and cannot sustain heavy currents. That is why your car did not start.
2007-06-02 05:37:32 · answer #1 · answered by Swamy 7 · 0⤊ 0⤋
Batteries are rated in ampere-hours and car batteries also include a parameter known as maximum cranking capability. The starting ampere load for a car is very high and a small battery has not the capacity to sustain that high of a current delivery.
2007-06-03 17:55:09 · answer #2 · answered by Anonymous · 0⤊ 0⤋
voltage is just the potential difference between the two terminals. The most important unit is charge. How much charge is stored in the battery. The smaller the battery the less charge. The car and engine needs a certain amount of charge to get the engine started. I think your 12volt battery might have been drained in the attempt.
2007-06-02 05:44:31 · answer #3 · answered by lilmaninbigpants 3 · 0⤊ 0⤋
relies upon, on the voltage distinction between the two batteries. If the voltages are an identical the no present day will pass and no charging will ensue. A rectified alternator or rectified AC source is plenty extra effectual in charging batteries and you may decrease overcharging that can harm lead-acid batteries. additionally, an alternator or application AC is comparatively infinite while batteries have constrained skill.
2016-11-03 10:26:14 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Internal resistance is different.
12V is the open circuit measurement.
If u connect eg 1k load across both battery and check, the one with lower internal resistance will have higher voltage, in this case --- the big one.
2007-06-02 16:20:09 · answer #5 · answered by Anonymous · 0⤊ 0⤋
You bought a battery adequate for a motorcycle, not for your car.
2007-06-02 06:16:11 · answer #6 · answered by Anonymous · 0⤊ 1⤋