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Get Powered Up! Certified Energy Manager Jeff Yago answers your alternative energy questions

Wondering about a great new energy-saving device
you found on the Internet? Then CLICK HERE!

Sorry. Jeff no longer answers questions online.
This will remain as a searchable
resource for all BHM website visitors.



 

Replacing one old battery in a string

Thursday, May 7th, 2009

Jeff

What’s the procedure for replacing a single “bad” battery in a bank of batteries with a few years on them?  Looks like a good opportunity to create a significant imbalance.

Dick

Dick,

If you install a “new” battery into a string of older batteries, you can be sure it will immediately “assume” the charging capacity of the rest of the string since they will determine the charging voltage and charging current.    In other words, after a few weeks of charge/discharge cycling it will act like its the same age as the other batteries.

I have replaced a bad battery in a string that was less than a year old with good results, but think it would be a waste of money to do this for an older battery bank, as its best to replace all at the same time.  A battery bank is just like a chain, its only as good as the weakest link.

Good luck,

Jeff Yago

 
 


 
 

 
 
 
 
 
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