VanKitten
Well-known member
So, I have encountered an issue. This is something every lithium user must have figured out..... so,
The BMS has a few functions, one of which is to disconnect the battery positive side when the discharge falls below a certain level, or when the charge reaches the top defined level. This is to protect the battery. This is an automatic function.
So..now, the solar charge controller enters the picture.
The installation guide is quite specific that cutting the battery side positive before FIRST disconnecting the solar array will damage and possible destroy the charge controller.
Ok..how do I solve this? The BMS has no connection nor access to the array side of the mppt. Turning the battery positive off in the event of reaching max charge is a totally normal thing. Will happen routinely.
My system is 400ah 60amp max from the solar array.
It is obvious that the Morningstar mppt I have will not be a workable one for this system.
Other lithium users...how did you solve this?
The BMS has a few functions, one of which is to disconnect the battery positive side when the discharge falls below a certain level, or when the charge reaches the top defined level. This is to protect the battery. This is an automatic function.
So..now, the solar charge controller enters the picture.
The installation guide is quite specific that cutting the battery side positive before FIRST disconnecting the solar array will damage and possible destroy the charge controller.
Ok..how do I solve this? The BMS has no connection nor access to the array side of the mppt. Turning the battery positive off in the event of reaching max charge is a totally normal thing. Will happen routinely.
My system is 400ah 60amp max from the solar array.
It is obvious that the Morningstar mppt I have will not be a workable one for this system.
Other lithium users...how did you solve this?