2-12 volt Batteries in motor home .Are they in paralell or series

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Generally these are parallel to provide 12V but with greater current. They are recharged from the engine alternator (output about 14.4v)

Posted on Aug 23, 2019

SOURCE:

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Posted on Jan 02, 2017

SOURCE: 24 volt charging problems .2

Posted on Aug 19, 2008

pos to pos and neg to neg for 12 volt but if your system is 24 volt thats a different story it will be pos to neg.and pos to neg

Posted on Nov 02, 2009

What you were trying for was parallel hookup to get more amps to turn over the engine. Cars are set for 12 volts only. 24 volts has damaged most everything.

Posted on Jan 13, 2010

SOURCE: How to piggyback two 12

The batteries should be wired in parallel to one another. That is Positive to Positive, and Negative to Negative.

Posted on Dec 31, 2010

SOURCE: I have a 1986 military

There are two basic ways to wire multiple batteries together, in "Parallel" or in "Series".

PARALLEL
Wiring two batteries which have the same output voltage in "Parallel", the output voltage of the combination stays the same but the amp/hour capacity of the combination is equal to the sum of their individual amp/hour capacities.

Wiring: Battery 1 Positive to Battery 2 Positive and Battery 1 Negative to Battery 2 Negative is Parallel wiring, retaining the voltage rating of either one of the batteries.

WARNING
It is not a good idea to wire two batteries which have different voltage ratings in parallel because the one with the higher voltage will immediately send current to the other one with the lower voltage to try to make their voltages both the same. The very high current which will flow between the two batteries is likely to make the batteries get very hot. IF THEY ARE CAR BATTERIES THEY COULD EXPLODE!

SERIES
Wiring two batteries which have the same output voltage in "Series" makes their combined output voltage equal to the sum of their individual voltages but the amp/hour capacity of the combination will be no greater than the amp/hour capacity of the smallest battery of the two.

Wiring: Bat 1 Positive to Load, and Bat 1 Negative to Bat 2 Positive, then Bat 2 Negative to the other side of the Load is Series wiring and the total voltage of the combined batteries is the sum of both individual voltage ratings.

So, assuming you want to get 24 volts out of two similar batteries, you could wire two 12 volt batteries in series.

NEVER OPERATE A 12 VOLT ELECTRICAL SYSTEM as in CARS or most BOATS with 24 VOLTS. YOU WILL BURN UP YOUR COMPONENTS AND SOME WIRING.

Hope helps.

Posted on Jun 28, 2011

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