Chadd
New Member
- Joined
- Jul 13, 2022
- Messages
- 92
Connecting more than one charge controller to the same battery bank ?
The Epever website says : -
Not recommended. the battery voltage that every controller detected has a minor difference. When the battery is nearly full, it is possible that some controllers are charging, and others not, or some are charging with a big current and others are charging with a small current.
However multiple other people say no problem, as long as both charge controllers are set up the same.
One did say : -
There might be a problem with flooded lead-acid batteries where they equalize every month. If you have multiple charge controllers attached to the battery bank they equalize more frequently, Which is not good for the battery. You need to turn off the equalizing function on the other charge controllers so you only have one charge controller performing the equalize function.
At the moment we have an Epever 30 amp charge controller and a 190 watt panel, feeding two 75amp lead acid batters and 3000w 12 volt inverter.
The four new panels on order are 340w - Luxor - mono crystalline.
As we look at it we need two 40 amp Epever charge controllers to handle two panels each.
The old 30 amp Epever charge controller will remain connected to the original 190 w panel.
I will then be able, I hope subject to learned advice, connect all three charge controllers to the 12 volt battery bank ?
I ask for advice as there are conflicting opinions, : )
As a by product, I have thought out a way of mounting the panels to balcony railings securly, making use of a ready made item and for little money.
As soon as I have contructed the devices I will post with pictures, they are aluminium and strong due to their construction : )
God Bless Chadd
The Epever website says : -
Not recommended. the battery voltage that every controller detected has a minor difference. When the battery is nearly full, it is possible that some controllers are charging, and others not, or some are charging with a big current and others are charging with a small current.
However multiple other people say no problem, as long as both charge controllers are set up the same.
One did say : -
There might be a problem with flooded lead-acid batteries where they equalize every month. If you have multiple charge controllers attached to the battery bank they equalize more frequently, Which is not good for the battery. You need to turn off the equalizing function on the other charge controllers so you only have one charge controller performing the equalize function.
At the moment we have an Epever 30 amp charge controller and a 190 watt panel, feeding two 75amp lead acid batters and 3000w 12 volt inverter.
The four new panels on order are 340w - Luxor - mono crystalline.
As we look at it we need two 40 amp Epever charge controllers to handle two panels each.
The old 30 amp Epever charge controller will remain connected to the original 190 w panel.
I will then be able, I hope subject to learned advice, connect all three charge controllers to the 12 volt battery bank ?
I ask for advice as there are conflicting opinions, : )
As a by product, I have thought out a way of mounting the panels to balcony railings securly, making use of a ready made item and for little money.
As soon as I have contructed the devices I will post with pictures, they are aluminium and strong due to their construction : )
God Bless Chadd