1-2-Both-Off

[Ink]

As being fitted to Tally-Ho!

In k

 

[Tranona]

Clearly taking the retro bit seriously, although maybe paraffin lamps would be more appropriate

 

[neil_s]

Still got mine!

 

[jac]

The work of the devil !!!!!!!

 

[Slowboat35]

Am I missing something?
The OP reads

"As being fitted to Tally-Ho!

In k"

Nothing else.
eh?

 

[mjcoon]

Am I missing something?
The OP reads

"As being fitted to Tally-Ho!

In k"

Nothing else.
eh?

You have to include the heading as well...

 

[LadyInBed]

Mine is still doing its job well. No intention of retiring it.

 

[Stemar]

Done right, they're still a good way to link two battery banks. Run on 1 most of the time, with a VSR to charge both banks when the engine's running, switch to 2 (domestic) to start if the starter battery's a bit low, with an option of both together if needed.

I reckon they're only problematic if they have to be changed by hand to charge the two banks, when the problem isn't with the switch, it's with the forgetful switcher, and we're all forgetful when tired.

 

[Juan Twothree]

This thread runs the risk of drifting onto Current Affairs.


Sorry, I'll get my coat.

 

[jac]

Done right, they're still a good way to link two battery banks. Run on 1 most of the time, with a VSR to charge both banks when the engine's running, switch to 2 (domestic) to start if the starter battery's a bit low, with an option of both together if needed.

I reckon they're only problematic if they have to be changed by hand to charge the two banks, when the problem isn't with the switch, it's with the forgetful switcher, and we're all forgetful when tired.

Or when switched to both to start and the forgetful switcher forgets to switch to one of the them when the engine is shut down. For my mind - separate isolators are the only sensible way to do this. Put a link switch in with a removable key and it becomes much harder to accidentally leave everything joined up . if required - start the engine - make sure it's happy then remove the key linking the batteries.

 

[RupertW]

Or when switched to both to start and the forgetful switcher forgets to switch to one of the them when the engine is shut down. For my mind - separate isolators are the only sensible way to do this. Put a link switch in with a removable key and it becomes much harder to accidentally leave everything joined up . if required - start the engine - make sure it's happy then remove the key linking the batteries.

It’s an old debate but if the switches are only used by one or two people who agree on the routine and know what they are doing (e.g. never start on Both, never put to Off when I engine is running) then they work well without any problems - that was certainly my experience. My current boat is ex charter so set up in a much more foolproof way.

 

[tillergirl]

I was surprised, nay stunned that Leo has opted for a 2-1-both-off. Given the extent of planning and the relative cost very odd. Mind you I think it was Blue Seas kit.

 

[Stemar]

It’s an old debate but if the switches are only used by one or two people who agree on the routine and know what they are doing (e.g. never start on Both, never put to Off when I engine is running) then they work well without any problems - that was certainly my experience. My current boat is ex charter so set up in a much more foolproof way.

Done right, the only time you'd switch to both would be when the starter battery's a bit low. If it's too far gone, I'd use 2 to start with the domestic bank so the flat one doesn't drag the good one down, but either case should be rare and indicative of another problem. On Jissel, the 12B was also the starter battery isolation switch, so SOP was to turn it to one before starting the engine and forget about it until we left the boat.

 

[RupertW]

Done right, the only time you'd switch to both would be when the starter battery's a bit low. If it's too far gone, I'd use 2 to start with the domestic bank so the flat one doesn't drag the good one down, but either case should be rare and indicative of another problem. On Jissel, the 12B was also the starter battery isolation switch, so SOP was to turn it to one before starting the engine and forget about it until we left the boat.

My routine was a little different. 2 (domestic) when I got on the boat and that was the normal position. Over to 1 to start the engine and 15 minutes later or at 13.3V (whichever was later) through B to 2, where it stayed until the engine needed restarting again, or if finally leaving the boat at the end of a trip then from 2 to Off. I was always ready to switch to 2 to start the engine but never needed to.

 

[LiftyK]

I have an aged combined mains supply and battery charge unit, professionally fitted, Dolphin brand. Surprisingly, to me anyway, when on mains shore power the batteries only charge when selected on the 1-2-both- off switch.

 

[Bilgediver]

Am I missing something?
The OP reads

"As being fitted to Tally-Ho!

In k"

Nothing else.
eh?

It is all in the title...... One of our favourite electrical topics. !-2 Off Both switches. Not sure how we got to oil lights unless gave up on the switch.