JimC
Well-Known Member
Is it usual to have the isolating switch wired to isolate the battery from charge (e.g. from shore power) as well as load?
Battery isolators
- Thread starter JimC
- Start date
Mark26
Well-Known Member
At risk of causing storm of posts… is it not normal to connect the charger direct to the batteries?
Leave boat, isolator off, charger on.
Leave boat, isolator off, charger on.
VicS
Well-Known Member
It makes sense to wire shorepower chargers, solar chargers and wind chargers directly to the batteries so that they can be charged without having to leave the engine and domestic systems powered up.
PaulRainbow
Well-Known Member
Straight to the battery or to the battery terminal of the isolator switch, whichever is most convenient. Remember to fit a fuse close to the battery/switch.
Refueler
Well-Known Member
OK ... I have old boat with old systems.
My 12v system is through the old style 3 way switch ...
The shore-power setup comes into a breaker box and then sockets round the boat (EU and UK).
I have two tiny auto maintenance Chargers plugged into mains socket and each one direct to a battery. I have option to plug in higher rate charger if needed.
As post #3 says - "without having to leave the engine and domestic systems powered up ".
My 12v system is through the old style 3 way switch ...
The shore-power setup comes into a breaker box and then sockets round the boat (EU and UK).
I have two tiny auto maintenance Chargers plugged into mains socket and each one direct to a battery. I have option to plug in higher rate charger if needed.
As post #3 says - "without having to leave the engine and domestic systems powered up ".
roaringgirl
Well-Known Member
I don't know about other chargers, but our MPPT for the PV says that it will be damaged if it is left connected to the PV while disconnected from the battery.
Refueler
Well-Known Member
Whats a PV ??
roaringgirl
Well-Known Member
Refueler
Well-Known Member
Got a reason you cannot just answer with the full words instead of wanting to send me on a Google search ?
I work in a market that is so full of abbreviations that TBH - I get fed up with it ......
roaringgirl
Well-Known Member
I live on a 40ft boat with 2 children under 10. I do my best to be patient with them, but I have little left for adults' questions that could be easily answered with a quick google search. PV is short for PhotoVoltaic (panels); strictly, "solar panels" are things that heat water using the sun.
jamie N
Well-Known Member
Pretty poor show for your children if they're in anyway at all comparable with some of us on here!
Refueler
Well-Known Member
Why did you waste time setting up a link that in fact when I typed in the words failed to show anything ...
It would have been quicker and more friendly to have just typed "PhotoVoltaic" .....
Given your reaction and style of reply .. I now know what to expect .......
Just so you are aware :
PV in my world and business is Pressure Vacuum ... as in auto valves on cargo tanks to vent ... but I don't link a Google for you to get that ...
Refueler
Well-Known Member
Pretty poor show for your children if they're in anyway at all comparable with some of us on here!
Pity his Google Link failed anyway ... to get it to work - it needs to have extra words added ...
That's as far as it got ... just stopped ! Hope his kids have greater success with him ...
jwfrary
Well-Known Member
Yes and no.
I put them in for large 3000watt inverter chargers but don't bother for smaller just a fuse close to the battery.