Battery terminals for double cables

[dgadee]

The potential problem with these multi connection battery terminals is that it is too easy to bypass any shunt you may have to measure current or battery capacity thus giving a false reading of what is happening to the state of the battery

Didn't think of that. My plan is to use this with a windlass and almost always the engine will be running. But will have a think about where the shunt for my battery monitor is placed.

 

[pvb]

The potential problem with these multi connection battery terminals is that it is too easy to bypass any shunt you may have to measure current or battery capacity thus giving a false reading of what is happening to the state of the battery

Anyone who installs a battery monitor shunt knows that it has to be the only thing connected to the battery terminal, surely?

 

[Alpha22]

Anyone who installs a battery monitor shunt knows that it has to be the only thing connected to the battery terminal, surely?

Ditto for isolation switches.

 

[rogerthebodger]

Anyone who installs a battery monitor shunt knows that it has to be the only thing connected to the battery terminal, surely?

So why the need for a double wire battery terminal.

I have 4 banks of 3 batteries in each bank and my battery terminals are single wire types. I have used a single wire with 3 connectors on on each one end and 2 in sections of the wire with the insulation removed next to the battery terminal. Each bank is then connected to a central bus bar which runs through a fuse and hall effect "shunt" to my battery switches.

There are people who has less technical knowledge than you and I.
OP did post that he had forgotten about that post #21

 

[rogerthebodger]

Ditto for isolation switches.

You could have 2 isolation switches one in each line.

I have a separate isolation switch to my windlass and bow thruster but that is also fed from my main isolation switch. Fitted so if windlass or bow thruster contactors weld the contacts I can shut off the main feed to kill the windlass and/or bow thruster.

 

[dgadee]

Anyone who installs a battery monitor shunt knows that it has to be the only thing connected to the battery terminal, surely?

Maybe so, but I didn't install it and I presume there are lots of purchased boats where the original reasoning for the wiring setup isn't too clear.

 

[pvb]

Maybe so, but I didn't install it and I presume there are lots of purchased boats where the original reasoning for the wiring setup isn't too clear.

My comment wasn't intended for you - just a reply to Rogershaw's rather random remark.

 

[oldbilbo]

I have used a single wire with 3 connectors on on each one end and 2 in sections of the wire with the insulation removed next to the battery terminal.

Each bank is then connected to a central bus bar which runs through a fuse and hall effect "shunt" to my battery switches.

I'm more than a little confused by the above, and would appreciate a 'reworking' of the description. Pics would help considerably..... please.

 

[rogerthebodger]

I'm more than a little confused by the above, and would appreciate a 'reworking' of the description. Pics would help considerably..... please.

Bill sorry for delay in reply but just got back from a month sailing in Durbs.

Pic below may clear up my not very good description of how I connected my batteries. The pics only show one of my four banks but all connected in a similar way

The blue and red bars top and bottom of pic are my main electrical bus bars being 38mm x 20mm in size that run down starboard side to feed all high current devices like windlass, Bow thruster , Inverter , Ect.

 

[Border Terrier]

I bought these through Amazon but as the BBC say, "available from other suppliers".

Gold plated battery terminals for audio, 2 pcs 1 pos and 1 neg

http://ecx.images-amazon.com/images/I/71VP8xLliiL._SL1500_.jpg