No, in series (connecting the positive of one to the negative of the other) the amperage remains the same and the voltage increases.

In essence you are just building a bigger battery, a 6 volt battery is really 3 - 2 volt cells hooked up in series, your just making a battery with 6 cells.

Home system 4000 watt (Evergreen) array standing, with 2 Midnite Classic Lites, Midnite E-panel, Prosine 1800 and Exeltech 1100, ForkLift battery. Off grid for @13 of last 14 years. 1000 watts being added to current CC, @2700 watts to be added with an additional CC.

First Bank:16 180 watt Grape Solar with FM80 controller and 3648 Inverter....Fullriver 8D AGM solar batteries. Second Bank/MacGyver Special: 10 165(?) watt BP Solar with Renogy MPPT 40A controller/ and Xantrex C-35 PWM controller/ and Morningstar PWM controller...Cotek 24V PSW inverter....forklift and diesel locomotive batteries

It's not 100% clear to me what the OP was asking, so I could see two possible answers:

"No": Two 6V golf cart batteries, each, say with 220 Amp Hours, wired in Series, will give you 220 Amp Hours (at 12V).

"Yes" : Two 6V golf cart batteries will give you a hell of a lot more amp hours than a single 12V battery of similar size (as these tend to max out at about 100 Amp Hours).

voltage times watts = amps by putting your batteries in series, it allows you to put the same amps through the wires but because you doubled the volts, you have doubled the power

I like to tinker... 5 and a half running motorcycles and a pile O'parts

## Comments

4,539Solar Expert ✭✭✭✭No, in series (connecting the positive of one to the negative of the other) the amperage remains the same and the voltage increases.

In essence you are just building a bigger battery, a 6 volt battery is really 3 - 2 volt cells hooked up in series, your just making a battery with 6 cells.

1,814Solar Expert ✭✭✭✭27,441Super Moderators adminYou double the voltage = 2x the power

You double the current = 2x the power

You take two batteries in series, you get:

P = 2*Voltage * Current

You take same two batteries in parallel, you get:

P = Voltage * 2*Current

Same amount of power (or energy if you use Amp*Hours instead of Amps for the current).

-Bill

104Solar Expert ✭✭"No": Two 6V golf cart batteries, each, say with 220 Amp Hours, wired in Series, will give you 220 Amp Hours (at 12V).

"Yes" : Two 6V golf cart batteries will give you a hell of a lot more amp hours than a single 12V battery of similar size (as these tend to max out at about 100 Amp Hours).

7Registered Users ✭-Rodger-

1Registered Users ✭240Solar Expert ✭✭✭104Solar Expert ✭✭Let's see if I can get this right - it's been a while since I had this in school.

- Volts = Potential Energy/Charge = N*m/C = kg*m2/(A*s3)
- Amps = Charge / Time = 1C/s
- Watts = J/S = N*m/S = (kg*m2)/s3

So, in the example above:"voltage times watts" = (kg*m2)/(A*s3) * (kg*m2)/s3 = (kg2*m4)/(a*s6) : not what we want.

Instead if you look at power (watts), does it equal VA?

Watts = (kg*m2)/s3 = VA ?

Let's look at VA

VA = V * A = (kg*m2)/(A*s3) * (C/s)

= kg*m2*C/(A*s3)

Substituting in that we know 1A = 1C/s we get

= kg*m2*(A/S)/(A*s3)

And the A's and one of the S's cancel out, leaving us with

VA = (kg*m2)/s3

e.g, the definition of Power in Watts.

7Registered Users ✭opps, you are right in any case, by doubling the voltage you can double the watts and still have the same amps

-Rodger-