Connect them in Series and you will get 24 volts but the amperage will be the same as 1 battery.
No
If the capacitor is charged then the battery will explode.
Not if both batteries are of similar capacity and fully charged.
Connect them together in Series. Connect the negative post of one battery to the positive post of the other battery. Then connect the negative charger cable to one negative battery post and the positive to the positive post of the other battery.
NO. Absolutely not, you must hook them in parallel. Two 12 volt batteries hooked in series will give you 24 volts with the same A/H of one of the batteries. Hook them in parallel and you will still have 12 volts and double the A/H of one of the batteries.
Depends on the amperage of the batteries you are using. Both setups will give you 36 volts, but you will normally have a longer run time with six 6 volt batteries in series than three 12 volt batteries. That is why golf carts use 6 volt instead of 12 volt batteries.
I don't believe this can be done. Someone else may have a better answer but for one charger you need the batteries in series and for the other you need them in parallel. Even if that weren't the case, having 2 voltage supplies connected together will cause problems, possibly a fire. Each charger will supply voltage to the other and they are not made to handle that.
the two terminals both conect to the electrode of the battery,so, you can conect two batteries with the two "terminals" for parallel circuit or series circuit. Rocky_B - Yes you can do this to give yourself some extra amps, but connect the negative to the negative of the other battery and the positive to the positive of the other battery - This is what previous poster meant by parallel. Warning: If this is for an automobile electrical system, you do not want to connect it in series; i.e. Positive to solenoid, negative to positive of other battery, negative of other battery to ground, as it would be supplying over 24volts to a 12volt system and may seriously mess up your electrical system or cause wire insulation to heat up, melt, and cause fires.
Sure,if the posts are in the right location and the battery fits the hold down. 12volt batteries are 12 volt batteries. The cold cranking amps differ for different size batteries, but that won't have any effect if the battery fits. Go for it.
both Neg to body(ground), Pos to Pos .. keeps 12 volts, higher amperage -=TWiG=-
As far as I know you can only do it if your lorry has two 12volt batteries connected in series, ie with the positive of one battery connected to the negative of the other. If so, then you connect the car jump leads to ONE of the lorry batteries in the normal way (car positive to lorry battery positive, car negative to lorry battery negative). Try to start the lorry like this, with the car engine running at a fast idle, with all electrics on the car turned off. If this doesnt work, try again with the jump leads connected to the other lorry battery ONLY. If this doesnt work, then both lorry batteries are too flat and you'll have to jump off a 24volt lorry / charge or replace the batteries. Jumping off a 12volt car usually only works if you have one lorry battery which is ok-ish, and you use the jump leads to "help" the weak one with the car. Good luck from Norn Irn!
2 batteries are wired in series then these 2 are wired in parallel with the other 2 which should also be wired in series. series is positive to negative and or negative to positive. parallel is pos. to pos. and neg. to neg.