The battery bank voltage must be lower than your array voltage so that your pv system would charge your battery.
Connecting multiple solar panels to one charge controller.
As clearly visible in the picture it will be enough to wire the positive pole of one panel to the positive pole of the other one and then wire the negative pole of one panel to the negative pole of the other one.
In this example there are two strings or arrays of solar panels that go to every charge controller.
Yes you can have two controllers on a one set of panels array.
You can think of a charge controller in the same way that you would think of a hard drive on a computer.
The meterhub was designed specifically for systems with multiple controllers.
If we have two solar panels with same voltage and power the connection will be very simple.
Yes you can connect two different arrays and charge controllers to the same battery bank.
The array 1 and array 2 voltages could be different.
Connect the negatives to the negatives and positives to the positives.
Maximum rated voltage 19 8v.
If you connect the output of each controller on two separate battery banks each controller will charge the bank that is connected to its output using whatever power is available depending on the need state of charge the battery bank has.
Maximum rated current 5 8a.
Solar panels connected to multiple charge controllers strings to multiple charge controllers and one battery.
For mppt controllers mppt tracking of each subarray is preferred as there is less impact with voltage mismatches.
For example our 115w sunpower solar blanket has the following ratings.
To meet high power charging requirements several solar controllers can be connected in parallel to a battery bank with each controller connected to its own separate pv subarray.
The rule of thumb when connecting solar panels directly to a battery is never connect more than c 10 watts where c is the capacity of your battery.
This setup is ideal if you have multiple solar panels that do not have the same rating.
Generally speaking it is a good idea to obtain your solar panels before you buy a charge controller.
Each controller is independent and the outputs will not be parallel unless you put them that way.
In addition to displaying information from any individual controller or aggregated system totals it allows simultaneous initiation of an equalization charging cycle for all tristar or tristar mppt solar charge controllers in the system.
Connecting in series means joining the positive terminal of a solar panel to the negative terminal of the next solar panel until eventually you are left with one free positive and one free negative terminal of the array which are to be connected to the input either of the inverter in case of a grid tied system without a battery backup or the charge controller in case of a grid tied system with a battery backup or off grid solar panel system.
And you can connect more than two arrays and charge controllers all in parallel.
There is only a certain amount of data that a hard drive can store so you typically purchase a hard drive that is big enough for your needs.
