Forum Discussion
MrWizard
Aug 07, 2017Moderator
Let me make this as simple as i can
A 12v battery has six cells
They can be in one box
Or septated, three cells each ,in two boxes
All cells are in series
Each cell has too carry the same amount of current aka amps
If a single cell in the series is bad amps suffer
Didn't make any difference if the battery is one box or two boxes
It's one 12v battery
If you replace only one box
The cells in the older box won't carry the same amount, as the new cells in the new box, and that limits output amps, and recharge amps, and will limit the life of the new box
For the best life and most efficieny you replace both boxes, the complete whole 12v battery
This is all a moot point that has been rehashed many times
The op got two new 6v boxes, and now has a new 12v battery
A 12v battery has six cells
They can be in one box
Or septated, three cells each ,in two boxes
All cells are in series
Each cell has too carry the same amount of current aka amps
If a single cell in the series is bad amps suffer
Didn't make any difference if the battery is one box or two boxes
It's one 12v battery
If you replace only one box
The cells in the older box won't carry the same amount, as the new cells in the new box, and that limits output amps, and recharge amps, and will limit the life of the new box
For the best life and most efficieny you replace both boxes, the complete whole 12v battery
This is all a moot point that has been rehashed many times
The op got two new 6v boxes, and now has a new 12v battery
About RV Tips & Tricks
Looking for advice before your next adventure? Look no further.25,147 PostsLatest Activity: Jul 04, 2025