dmccarty
Super Star Member
LiFePo batteries are huge improvement over lead acid for most applications on boats. There are the "drop-in" replacement LiFePo batteries that are supposed to easily replace lead acid. I would be very careful with these batteries. LiFePo batteries have different charging requirements that lead acid and the battery charger needs to be able handle the different parameters.
This website is someone who knows what he is talking about with boat electronics and here is his articles about batteries, Batteries Archives - Marine How To
AGM vs LiFePo longevity, AGMvs. LiFePO4- Real-World Data
His recommended drop in batteries, Our Recommended Drop-In LifePo4 Batteries - Marine How To
As mentioned above, LiFePo can't be charged or used in low temperatures. They don't like to be stored with a full charge. One needs a charger than can handle the LiFePo charge profile.
The number of charge cycles a LiFePo can do, i.e., it's lifetime, is much higher than lead acid. One brand I know about, should go 2,500 charge cycles if 80% of the battery charge is used. Use only 50% of the charge and the number of cycles is 5,000. LiFePo is much lighter and small than lead acid.
This website is someone who knows what he is talking about with boat electronics and here is his articles about batteries, Batteries Archives - Marine How To
AGM vs LiFePo longevity, AGMvs. LiFePO4- Real-World Data
His recommended drop in batteries, Our Recommended Drop-In LifePo4 Batteries - Marine How To
As mentioned above, LiFePo can't be charged or used in low temperatures. They don't like to be stored with a full charge. One needs a charger than can handle the LiFePo charge profile.
The number of charge cycles a LiFePo can do, i.e., it's lifetime, is much higher than lead acid. One brand I know about, should go 2,500 charge cycles if 80% of the battery charge is used. Use only 50% of the charge and the number of cycles is 5,000. LiFePo is much lighter and small than lead acid.
Last edited:
