I have several JBD BMS with the HEAT function that are not working... at least not in the way I need them to work.
I have discovered (by trial and error) that the heating function only works if the battery is connected to an active charger. The best I can tell, if it's connected to an active charger, when the BMS senses the temperature has reached your "Charge under temp Trigger Value" setting, it simultaneously turns off the Charging Port and connects the ground to the H- terminal which will turn on your heaters if you have them connected properly. Once the temperature reaches your "Charge under temp Release Value", it disconnects ground to the H- and turns on the Charging Port again.
The problem I am having is that I have some "Gate Operator", Automotive" and "Tractor" batteries connected to these BMS's and these batteries are connected to
Has anyone figured out a way around this issue? I could just put a (not smart) trickle charger on these batteries and allow the BMS to turn off the charging when the battery is full but I wish there was a better way. Any Thoughts?
I have discovered (by trial and error) that the heating function only works if the battery is connected to an active charger. The best I can tell, if it's connected to an active charger, when the BMS senses the temperature has reached your "Charge under temp Trigger Value" setting, it simultaneously turns off the Charging Port and connects the ground to the H- terminal which will turn on your heaters if you have them connected properly. Once the temperature reaches your "Charge under temp Release Value", it disconnects ground to the H- and turns on the Charging Port again.
The problem I am having is that I have some "Gate Operator", Automotive" and "Tractor" batteries connected to these BMS's and these batteries are connected to
Mroinge MBC022, 12V 2A Lead Acid & Lithium(LiFePO4) Automatic Trickle Battery Charger Smart Battery Maintainers
and once the battery is full (which is 99% of the time), the maintainer goes to sleep and the BMS does not sense that it is connected to a charger and the heaters do not activate when the temp drops.Has anyone figured out a way around this issue? I could just put a (not smart) trickle charger on these batteries and allow the BMS to turn off the charging when the battery is full but I wish there was a better way. Any Thoughts?