Multiple battery bank, which terminals to connect CC, inverter to?

[pseudo]

I have a bank of 6 6V batteries, 3 pairs in parallel for 12V. it is being fed by 2 MPPT controllers and I also have an inverter and 12V fuse block connected to the bank. Everything is connected to a positive and negative bus bar, which then go to the battery terminals.

I'm wondering if there's a best practice as to where to connect the positive and negative wires from the bus bars to the batteries. Is it better to have them on the positive and negative terminals of one of the battery pairs at one end of the bank? Or is it better to have one at the positive terminal of the first battery pair at one end of the bank and the other at the negative terminal of the last battery pair at the opposite end of the bank? Or does it not matter?

Thanks!

 

[bullfrog]

I believe the current thinking is to make all the batteries charge equally by connecting the positive cable to the first battery's positive post in the series circuit and the negative cable to the negative post of the last battery in the series circuit, assuming all battery connecting cables are equal length.

 

[pseudo]

Quick MS Paint diagrams

or

 

[pseudo]

I believe the current thinking is to make all the batteries charge equally by connecting the positive cable to the first battery's positive post in the series circuit and the negative cable to the negative post of the last battery in the series circuit, assuming all battery connecting cables are equal      length.

:thumbsup:

 

[B and C]

Read this over: https://www.victronenergy.com/upload/documents/Wiring-Unlimited-EN.pdf

This will let you know the proper way. You already have busbars, why not connect each series to the busbar?

 

[bullfrog]

Pseudo be careful making connections and check with a volt meter before connecting bus bars.

 

[MrNoodly]

This might be a good place to repost this link:

http://www.smartgauge.co.uk/batt_con.html

 

[bullfrog]

Your drawing seems to show the cables linking the 2 batteries to create 12 volts being used to create the parallel circuits which is not correct. After making three sets of 12 volt power you will have a positive and a negative post without a cable. The three open positive posts should be connected to create the positive 12 volt parallel circuit and the three open negative posts connected to create the negative 12 volt parallel circuit. The bus bar cables can be connected to opposite ends of the parallel 12 volt circuits. You can treat each set of 6 volt batteries as a 12 volt battery and connect each to the bus bar if battery balance becomes a problem.

 

[Matlock]

Your diagram is missing a few wire connections. Please continue your research before connecting any wires. See the link MrN provided above for assistance.