I would like to make a simple question about lead acid batteries charging. This question could also conserns all rechargable batteries, but I would like to stand on Pb batteries.
While charging a 12V (6 cells) battery there is current flow trough the cells from from the 1st to the last (6th in series). When the battery voltage is near 13.8 - 14.0 (please don't stand on this), then we say that the battery is been full charged, and then we can stop charging.
I would like to know if each cell after charging has the same charge. What will be happened if one of the 6 cells is short circuit? If this is happened (and there is no posibility to see it) then each cell voltage will be at 14V/5cells.
I am asking this because someone told me that it is dangerous to charge batteries in series (let's say 10 batteries), because there might be some batteries overcharged and some not full charged. If this is true then battery manufacturers would sell only single cells (of any type of battery).
What is your opinion???