Batteries, mixing sizes in parallel

[carson]

I just got home and wanted to write a paper on the subject... Seems like all the mysteries have been cleared up. I agree with almost everything that has been written about it above.

All I wanted to say was that 2-6volt batteries are in series. The voltage applied has little to do with the charging rate (amps). That is controlled by the internal resistance of the batteries.

  Suppose 1 or more cells in either battery is suspect, open or shorted, the consequences are unpredictable (sort of)....  trouble ahead.  The same thing will happen on a single 12V battery..same number of cells. At least with a single 12V battery you know where to look. On 2- 12v in parallel ...which one is it.?

  Get out the hygrometer to find out.

Isn't RV'ing fun?

Carson FL

 

[Tom]

Does this mean you guys are polarized  ???

[quote author=carson]Get out the hygrometer to find out.[/quote]

Unless you want to measure moisture in the soil, that would be a hydrometer Carson. But we knew what you meant  ;D

Stand by for a treatise on how to measure the specific gravity in your cells 

 

[carson]

Thanks Tom, every time I work on my batteries I get "soiled". I've made that mistake before, one byte in my brain seems to be stuck.  ;D

carson

 

[RLSharp]

I've made that mistake before, one byte in my brain seems to be stuck.

Carson,

You are one lucky guy to have only one byte stuck in your brain. I have so many stuck that it often essentially fails to function at all.  ;D

R

 

[Tom]

Carson,

Back in the old country, where/when female techs wore skirts to work, a tech gave me a bill for the countless pairs of pantyhose that had literally melted when she maintained a large bank of batteries. I paid the bill, and remember to this day what that thing was called  ;D

 

[carson]

LOL, Tom... I think you could have fixed that problem if you handed them a hammer.... hammers have power to fix anything.

carson

 

[seilerbird]

I simply wanted to know from JFD why he so emphatically states that differences in battery capacity, physical size, etc.. were acceptable in a parallel configuration, but totally intolerable in a series configuration.

Now that everyone has taken his turn to "pee in the pool", I withdraw the question.

If your question was only intended for JFD then your best course of action would be to send him an IM.

 

[Just Lou]

If your question was only intended for JFD then your best course of action would be to send him an IM.

Thanks Tom.  Now I've got to clean the pool again.