I went to a local boat show today and there was a booth promoting Lithium Ion Batteries for boat use. According to the guy in the booth, I could replace my single starting battery and four house batteries (AGM) with just two Lithium Ion Batteries (at a cost of $1,300 each) and save lots of weight.
He gave me a brochure that seems to disagree with what he said. The Lithium Ion Batteries are only 100 AH capacity so to duplicate the house bank I have now, I would still need four. That's 5 X $1,300!
The brochure compares their batteries with lead acid and claims that for each battery I will save $2,436 over a ten year period over lead acid batteries. Checking the brochure, I see that they figure I would need to replace each lead acid battery eleven times over a ten year period! That has not been my experience.
I'm going to pass on this for now.
He gave me a brochure that seems to disagree with what he said. The Lithium Ion Batteries are only 100 AH capacity so to duplicate the house bank I have now, I would still need four. That's 5 X $1,300!
The brochure compares their batteries with lead acid and claims that for each battery I will save $2,436 over a ten year period over lead acid batteries. Checking the brochure, I see that they figure I would need to replace each lead acid battery eleven times over a ten year period! That has not been my experience.
I'm going to pass on this for now.