LIthium battery upgrade - Complete!
For folks interested in an upgrade to lithium batteries, we've just completed our blog post on our upgrade to 400Ah of RELiON LiFePO4 batteries. http://www.jenericramblings.com/2017/01/17/rv-upgra...
Forum Discussion
My issue other than for cold weather is NOT the chemistry nor the performance.
Throw the price out the window. For now.
My issue is with an insane amount of electronics and electrical needed to manage a battery bank. Yeah, the Jim Varney syndrome...
Electrical power management reliability. Anyone want to (lose) argue the complexity failure ratio syndrome?
How many (dozens?) of lithium battery packs do I now have that have had a cell controller go bad and destroy a cell? Reliability is increased by throwing lots and lots of money at an electrical power control issue. Intense design, prototypes, stressing, and then the final test. The BS proofing of any electrical control circuit.
Thousands and thousands of guinea pigs running around in the real world. Mocking hyperbole. Establishing reality.
Many decades ago a "comfortable" shipyard owner showed me a solid platinum time piece that sported a dozen Burmese "pigeon blood" rubies. The highest grade on earth. For the life of me, I could not tell his one o:clock from my one o:clock.
Wouldn't it be wonderful if someone could come up with a lithium battery that did not self destruct because of Shirley Temple grade sensitivity to degrees of charge - that could continue to work in lower temperatures, and not need a replica of Space Shuttle Discovery's power management system?
Folks hoot about weight savings, then add an extra ton of lead ballast to the keel of their ketch, or stuff side compartments with stuff that they'll never use.
Meanwhile I really should go home and "harvest" those failed cells. That's another buzzword I love. "Recover" is not cool ya know...
Throw the price out the window. For now.
My issue is with an insane amount of electronics and electrical needed to manage a battery bank. Yeah, the Jim Varney syndrome...
Electrical power management reliability. Anyone want to (lose) argue the complexity failure ratio syndrome?
How many (dozens?) of lithium battery packs do I now have that have had a cell controller go bad and destroy a cell? Reliability is increased by throwing lots and lots of money at an electrical power control issue. Intense design, prototypes, stressing, and then the final test. The BS proofing of any electrical control circuit.
Thousands and thousands of guinea pigs running around in the real world. Mocking hyperbole. Establishing reality.
Many decades ago a "comfortable" shipyard owner showed me a solid platinum time piece that sported a dozen Burmese "pigeon blood" rubies. The highest grade on earth. For the life of me, I could not tell his one o:clock from my one o:clock.
Wouldn't it be wonderful if someone could come up with a lithium battery that did not self destruct because of Shirley Temple grade sensitivity to degrees of charge - that could continue to work in lower temperatures, and not need a replica of Space Shuttle Discovery's power management system?
Folks hoot about weight savings, then add an extra ton of lead ballast to the keel of their ketch, or stuff side compartments with stuff that they'll never use.
Meanwhile I really should go home and "harvest" those failed cells. That's another buzzword I love. "Recover" is not cool ya know...
