Will MPPT 75/15 draw down battery in winter with no panels attached?
Getting ready to store the boat for the winter and I am taking the panels down. Do i need to disconnect the MPPT's from the house bank?
Thanks
asked
Will MPPT 75/15 draw down battery in winter with no panels attached
There is a minimal self consumption. Manual states 25mA however not sure if that is in operation or standby.
If you are disconnecting the panels, you might as well disconnect the battery as well. If left connected it will draw approximately 4 Ah per week.
On a 100Ah battery that is a considerable amount, on a 1000Ah not so much.
By the time you add all the parasite loads together, you are best to either leave your battery on a charger or disconnect the battery completely.
Even disconnected completely a lead acid battery will benefit from being changed at least once every month or two whilst in storage.
