Because they are connected in series. Lets say you have a flashlight that holds 2 D cell batteries. Each battery puts out 1.5 volts. Connect them in series and together they put out 3 volts. The flashlight is designed to run on 3 volts. A electronic device that uses 4 AA batteries is using 6 volts even though each battery is only putting out 1.5 volts. Connected in series you add to the voltage with the addition of each new battery.
By there positive and negative connectors and there acid.
Car batteries will make a larger explosion than flashlight batteries would.
Note: When interconnecting A200 batteries (cells), they must be identical in voltage and amp rating! Batteries may be connected in series. The positive terminal of the first battery is connected to the negative terminal of the second battery; the positive terminal of the second is connected to the negative of the third, and so on. The voltage of the assembled battery is the sum of the individual batteries. The batteries are connected: + to - to + to - to + to -, etc. The capacity of the battery is unchanged. Batteries may also be connected in parallel. The positive terminal of the first battery is connected to the positive terminal of the second battery, the positive terminal of the second is connected to the positive of the third; the negative terminal of the first battery is connected to the negative terminal of the second battery, the negative terminal of the second is connected to the negative of the third and so on. The batteries are connected: + to + to + and - to - to -. In this configuration, the capacity is the sum of the individual batteries and voltage is unchanged.
How to hook up 6 8v batteries in searise <><><> Batteries connected in series have the negative (-) of one connected to the positive (+) of the next, until all 6 batteries are connected.
Connect Positive on A to Negative in B then Positive from B to whatever Positive on A had been connected to.
Connect the positive of one battery to the negative of the other (just like you stick two D cell batteries in a flashlight), your load would be connected to the two remaining terminals.This will give you 24 volts!Series voltage: Etotal = E1 + E2
If the batteries are connected from + (positive) to - (negative) then the batteries are connected in "series". If the batteries are AA (1.5v each), then the resulting voltage of the two connected in series will be 3.0v. If the batteries are connected + to + and - to -, then they are connected in "parallel" and for the same batteries the voltage would be 1.5v, but would last twice as long as one battery by itself. A truck battery system is two 12v batteries connected in series (+ to -) to give the truck a running power of 24v.
You just connect them in Parallel. Two 12 volt batteries connected in parallel will output 12 volts. Two connected in Series will output 24 volts. Just connect the negative terminal on the first battery to the negative on the second battery. Then connect the positive terminal on first battery to the positive on the second battery. Connect the cables to the second battery, positive to positive and negative to negative. Click the link for a diagram.
positive (red wire) to positive post (+) negative (black wire) to negative post (-) positive (red wire) to positive post (+) negative (black wire) to negative post (-) posiItive (red wire) to positive post (+) negative (black wire) to negative post (-) If you want the batteries to provide the same voltage but more current, hook them up this way. If you want the voltage increased but the current remain the same, hook the up with negative post to positive post and so on, until the voltage is what you want. For example using regular flashlight batteries of 1.5 volts, the first way, using only two batteries, you still have 1.5 volts but the batteries now will last twice as long. Using the second way, the batteries last only just as long as a single battery but you have 3.0 volts instead.
A flashlight is a series circuit. The batteries positive end connects to the flashlights switch. The switch connects to the center pin of the light bulb. The bulb filament is connected to the center pin of the bulb and the outer metal shell of the bulb socket. The shell of the bulb socket is connected to the metal flashlight's body which returns to the negative end of the battery. Turn on the switch and you have light.
they do because like magnets we have negative and positive ,negative and negative repel and vise verse but positive and negative attract
To jump start an engine via the battery; the remote battery and the host battery, being of the same voltage, should be connected in parallel. That is positive terminal to positive terminal, negative to negative.