tiltrider1
Guru
- Joined
- Aug 2, 2017
- Messages
- 4,873
- Location
- Pacific North West
- Vessel Name
- AZZURRA
- Vessel Make
- Ocean Alexander 54
By dumb luck I met an engineer who does remote camp electrical systems. Most camps get their electricity from generators. Fuel is a big expense for them as is generator longevity.
He was explaining to me how they were using LFP batteries instead of small generators to run the camp at night. Charging was done on non peak times to keep the generator loaded. His oldest bank was 10 years old and he was still seeing 95% capacity from the batteries. His opinion was that the batteries should see 20 years but he was unaware of anyone having 20 years of experience with LFP so could not be sure that the batteries won’t fall off a cliff capacity wise.
He also made a very interesting comment. In his camps they use external BMS’s. In his opinion the BMS circuitry is the weak link in the system. He feels I will never reach the end of my batteries life but would eventually end up replacing them due to failed BMS’s. How long the BMS’s would last was anyone’s guess and wouldn’t be surprised if failure rates were totally random.
Interesting conversation and point of view.
He was explaining to me how they were using LFP batteries instead of small generators to run the camp at night. Charging was done on non peak times to keep the generator loaded. His oldest bank was 10 years old and he was still seeing 95% capacity from the batteries. His opinion was that the batteries should see 20 years but he was unaware of anyone having 20 years of experience with LFP so could not be sure that the batteries won’t fall off a cliff capacity wise.
He also made a very interesting comment. In his camps they use external BMS’s. In his opinion the BMS circuitry is the weak link in the system. He feels I will never reach the end of my batteries life but would eventually end up replacing them due to failed BMS’s. How long the BMS’s would last was anyone’s guess and wouldn’t be surprised if failure rates were totally random.
Interesting conversation and point of view.