I just perused the standard. The word “shall” is in the first sentence of every section after the definitions.
I didn’t count, but I would say the word “shall” is in 90% of the statements in the standard.
Upgrading Inverter/charger
- Thread starter HoosierSailor
- Start date
I didn’t count, but I would say the word “shall” is in 90% of the statements in the standard.
Ahh, yes. TE-13 became a standard as E-13 in 2022 I believe. Prior to becoming a standard it makes sense they would use the word “should“ instead of “shall”.
Confirmed on shall/must vs. should/recommended/encouraged.
Back to audible alarms - I don't have access to ABYC specs. All my sleuthing on the internet has resulted in the BMS shutdown audible alarm being should/recommended, not a shall/must. From: ABYC Ratifies E-13, their first lithium battery standard
The use of an alternate power system makes sense as well. It would be highly unusual, but having everything all go dark suddenly in a bad situation would definitely not be a good thing. There is a balance in all this stuff from a risk management point or view. Needing to cover everything from naive/newbie boat operators to the traditional cascading sequence of small failures and the BMS will never shut itself down on your boat until its oh-dark-thirty, bad weather, and a few other things have gone wrong and you really need that battery working right now
I guess if they ever make this a requirement, there will need to be some kind of nominal minutes on that warning, etc? And in practice it will require broader industry wide adoption as well? "Approaching" - is that a 15 minute warning, or a 15 second warning...
By the way - thanks all for the discussion on this.
I have a little raspberry Pi project that I want to get back to as part of my battery upgrades. I might put in some audible alarm (plus remote notification to my phone when I am far away) logic at some sort of top/bottom voltages, temp and and overall current in/out levels.
Back to audible alarms - I don't have access to ABYC specs. All my sleuthing on the internet has resulted in the BMS shutdown audible alarm being should/recommended, not a shall/must. From: ABYC Ratifies E-13, their first lithium battery standard
The use of an alternate power system makes sense as well. It would be highly unusual, but having everything all go dark suddenly in a bad situation would definitely not be a good thing. There is a balance in all this stuff from a risk management point or view. Needing to cover everything from naive/newbie boat operators to the traditional cascading sequence of small failures and the BMS will never shut itself down on your boat until its oh-dark-thirty, bad weather, and a few other things have gone wrong and you really need that battery working right now
I guess if they ever make this a requirement, there will need to be some kind of nominal minutes on that warning, etc? And in practice it will require broader industry wide adoption as well? "Approaching" - is that a 15 minute warning, or a 15 second warning...
By the way - thanks all for the discussion on this.
I have a little raspberry Pi project that I want to get back to as part of my battery upgrades. I might put in some audible alarm (plus remote notification to my phone when I am far away) logic at some sort of top/bottom voltages, temp and and overall current in/out levels.