12 volt batteries
Is there any problem mixing 2 different brands of batteries
Forum Discussion
You can all believe what you want, and I will not interfere.
I did a lot of boat work on big expensive boats before the depression of 2010 hit here hard. A lot of what I (or we - company) did was house power upgrades of performance cruisers (retired racing sloops). Many had increased the house bank by simply adding to it.
The resulting banks ware always a disappoint to the owner in that they never got the added capacity that was expected. This is because they could not effectively charge the two different 12V jars. The internal resistance and leakage resistance all change with age, cycles and temperature. Even if the jars are adjacent, the one that absorbs the most charge will get warmer and so charge better.
The thing I liked most about 12V jars strapped in parallel was that I would get an emergency call to come and clean up after a bank explosion. This means that I had to pack up and tote lots of clean-up gear and then bill the owner's insurance company for the clean-up and required repairs. I still have the standard cover letter in my file if you should need it to explain to your carrier that this was not a foreseeable event and a direct result of a lack of proper maintenance.
Just if you plan to do this, please carry at least two boxes of baking soda onboard to neutralize the spilled acid.
Also look up the article "Balance of Power" by Gary Bunzer that was in Family Motor Coaching - January 2012. I am sure it is out there somewhere. You will have to read it as the pictures show both the typical wrong ways and some better ways to do this.
Matt
I did a lot of boat work on big expensive boats before the depression of 2010 hit here hard. A lot of what I (or we - company) did was house power upgrades of performance cruisers (retired racing sloops). Many had increased the house bank by simply adding to it.
The resulting banks ware always a disappoint to the owner in that they never got the added capacity that was expected. This is because they could not effectively charge the two different 12V jars. The internal resistance and leakage resistance all change with age, cycles and temperature. Even if the jars are adjacent, the one that absorbs the most charge will get warmer and so charge better.
The thing I liked most about 12V jars strapped in parallel was that I would get an emergency call to come and clean up after a bank explosion. This means that I had to pack up and tote lots of clean-up gear and then bill the owner's insurance company for the clean-up and required repairs. I still have the standard cover letter in my file if you should need it to explain to your carrier that this was not a foreseeable event and a direct result of a lack of proper maintenance.
Just if you plan to do this, please carry at least two boxes of baking soda onboard to neutralize the spilled acid.
Also look up the article "Balance of Power" by Gary Bunzer that was in Family Motor Coaching - January 2012. I am sure it is out there somewhere. You will have to read it as the pictures show both the typical wrong ways and some better ways to do this.
Matt
