dream4red wrote: ↑Fri Feb 02, 2024 1:15 am
T1Terry, we had our solar people out today and they tell us that the regs for installing house batteries have all been tightened up a lot. SInce our battery had the potential to explode, I can understand now why lithium batteries have to placed outside the house. That will be difficult in a motor home? Our lithium battery was under our bedroom, in the cellar, which started us on a whole lot of concerns. Yet another weird thing that's new with solar.
Sadly, those that write these regulations know next to nothing about the topic. Only certain lithium chemistries have a potential risk of catching fire, and the risk revolves around battery management practices. It is cheap and easy to limit the total battery voltage, it is complex and far more expensive to monitor and limit individual cell voltages and this is where the fire risk stems from, cells going over or under voltage.
Rather than jump on the battery manufacturers to up their game and build proper battery management systems and hold them responsible for every battery fire, they take the easy way out and put the pressure on at the installation end of the whole system, put it away from where it could cause damage if it went bang
I have reached my limit dealing with idiots who get well paid jobs yet have no actual knowledge of the subject or the problems involved, how can they enforce regulations that don't address the problem?
As far as the battery you have installed, get a fire proof and explosion containing box built to house the battery ...that way, if it does go bang, the house will not be damaged and you have proof for a legal person to built a case against the battery manufacturer .....
T1 Terry