Engine revs to charge battery whilst operate windlass

[GHA]

the the service battery should be a deep cycle battery such as a Trojan, which should not be used for a winch.

Trojan data suggests otherwise....

 

[halcyon]

>The engine battery is for starting the engine. That's it. The service bank is for running all other loads, including the windlass. It's the big one, so it's better suited to the job anyway.

The engine and winch batteries should be Cold Cranking Amps, the the service battery should be a deep cycle battery such as a Trojan, which should not be used for a winch.

It's all down to bank size, starter batteries produce a lot of amps for short time from a small package, your deep cycle may produce less amps for a similar size but for a longer period. But as the service bank is much larger, then the combine available CCA can well be the same or even more.

Remember that the battery voltage supplying a largish load is down in the mid 12 volt, the alternator, solar panel. wind gen will try and supply all load first.

Brian

 

[macd]

Trojan data suggests otherwise....

Indeed. Trojan also states quite specifically that batteries such as the T105 can be used for starting. The poster you responded to has been told this, and provided with a link, but...

As halcyon points out, domestic banks are typically so much larger than starter batteries, that they can easily handle windlass loads even if the above weren't true. For instance my 4 x T105 12V set-up is asked for a max of 50A per battery pair by the windlass. The admiral's hair-drier uses that -- on half power. No problem.

Now I know the difference between a hair drier and a windlass, and I bet even KellysEye does too. But my batteries don't. Nor do they care.

 

[KellysEye]

>Trojan also states quite specifically that batteries such as the T105 can be used for starting.

They say it can be used for starting but I wouldn't use it for that, they are designed for golf carts that don't use CCAs, also I suspect using it for CCA purposes would shorten it's life.

 

[halcyon]

>Trojan also states quite specifically that batteries such as the T105 can be used for starting.

They say it can be used for starting but I wouldn't use it for that, they are designed for golf carts that don't use CCAs, also I suspect using it for CCA purposes would shorten it's life.

What's the difference between a golf cart electric motor and a winch electric motor loading, both have similar operating loads ?

Using one battery for engine starting may not be good, but four or six in a bank will see no more load starting a engine as a single operating a golf cart.
Brian

 

[macd]

they are designed for golf carts that don't use CCAs

Since you're such an authority on this, would you care to tell us what special quality distinguishes a CCA from a common-or-garden amp? Oh, and exactly what is it that makes golf carts so relucant to use them?

 

[geem]

What's the difference between a golf cart electric motor and a winch electric motor loading, both have similar operating loads ?

Using one battery for engine starting may not be good, but four or six in a bank will see no more load starting a engine as a single operating a golf cart.
Brian

A useful rule of thumb I was told is find out the run current of your starter motor or winch motor and times it by four. If you have a domestic battery bank more than four times the current of the starter motor or winch motor the batteries wont suffer.
I am sure others may have a different view