will I achieve more amps by doing this and how does this relate to wattage Im having troubles relating wattage and amps. Im trying to up my ampreage to get more cranking power out of two smaller batteries will this work?
2006-12-11 14:39:47 · 8 answers · asked by Aaron A 5 in Science & Mathematics ➔ Engineering
You don't get more amps one way or the other. (For instance, two 14V batteries and a 14 ohm resistor: two circuits in parallel putting currents of an amp each through the resister for 2A current in it or the two batteries in series (28V) through the 14 ohm resistance giving the same 2A.)
However, you DO have a huge real world difference. In series, the total current in the circuit flows through BOTH batteries while in parallel, only the current generated in each battery flows through each one. Since current generates heat and heat saps battery output and, if high enough in any given battery, can destroy a battery, having the total current flow through both will limit you, even to the point of one battery literally blowing up. This is especially true when the two batteries are of different capacities.
Put them in parallel. Period. Or talk to Aflac... An example of this is one driver providing a "jump" to another. The batteries are in parallel, not in series and even then it is dangerous sometimes.
(The higher the internal temperature of a battery cell, the lower the power output available. Not only is it a problem as described above, but in series you will actually reduce the available power and therefore current available to crank with.)
2006-12-11 14:50:38 · answer #1 · answered by roynburton 5 · 1⤊ 0⤋
Adding another battery in parallel WILL NOT give you any more Power (wattage) because the Resistance of your starter stayed the same and your voltage remained the same. And...
power(watts) = current (amps) X Resistance (ohms). All you do hooking these up in parallel is increase your storage capacity. (amp hours) In other words you doubled the amount of time it takes to run your battery down. If you are not getting enough cranking amps there must be some other problem.. Like cables are too long or bad connections.
Be very careful fooling around with this idea of more batteries. The answers above are wrong for the most part an my cause problems especially the tongue remedy.........
2006-12-11 15:09:34 · answer #2 · answered by HeyDude 3 · 0⤊ 0⤋
The current (amperage) will double.It's like having a battery that's twice the size. Wattage (power) is Volts x Amps so total watts will also double.
2006-12-11 14:45:48 · answer #3 · answered by Anonymous · 1⤊ 0⤋
The first four answers above appear to me to be either plain wrong or not addressing what you want.
You are correct that putting batteries in parallel will keep the same voltage. It will not double the current in your circuit, but it will double the current available to your circuit. In other words, the circuit attached to your battery will try to draw whatever current it needs based on the voltage of the batttery and the resistance of the circuit, with two batteries it will not draw any more current, but if it needs more current than can be provided by one battery, two batteries will make twice as much available.
As an aside, putting the batteries in series would double the voltage, without providing any additional current.
2006-12-11 15:02:01 · answer #4 · answered by an engineer 2 · 0⤊ 1⤋
Well other than the affect of the internal resistance of the battery the current should double given the same voltage.
2006-12-11 14:43:47 · answer #5 · answered by Wal C 6 · 0⤊ 0⤋
you will double the amps if they are the same size batteries,your on the right track.
2006-12-11 14:44:29 · answer #6 · answered by Anonymous · 1⤊ 0⤋
No change in amperage but the time of operation increases
2006-12-11 15:17:24 · answer #7 · answered by Danushka B 2 · 0⤊ 0⤋
Stick your tongue on the terminals and you will see what the change in amperage will be.
2006-12-11 14:57:35 · answer #8 · answered by Anonymous · 0⤊ 1⤋