condor22
Mike
Had a brain fade, lol a Single pole Double throw will do SPDT if you only switch the positive line
Triple battery system question?
- Thread starter cairnspom
- Start date
Help Support Prospecting Australia:
Thanks, yes thats what I'm looking at now, seemingly more common in the boat industry!
May have missed something along the way through this thread, correct me if I'm wrong.
Using a SPDT switch between batteries?
One battery is flat and you hit the ignition switch to start vehicle, isn't there going to be "smoke" as the starter motor tries to draw lots of amps?
Using a SPDT switch between batteries?
One battery is flat and you hit the ignition switch to start vehicle, isn't there going to be "smoke" as the starter motor tries to draw lots of amps?
condor22
Mike
Nightjar,
Nigel has a BCDC1225 charging which ever battery, just like I have a 1220 (his is solar controller capable mine is not). If you flatten an AGM it will recover, but will drastically reduce its life......
They are designed to be permanently connected, all the switch will do is select which battery gets the charge. So no, all things equal, no smoke.
In fact, I have another 1220 in my van, it and the one in the 4x4 both activate from an ignition controlled 70A continuous solenoid. Fortunately, I don't think my alternator is one of the smart types that drop output once started.
The thing is, I manage my batteries so they are not too discharged, so the 2 Redarcs, even with my van fridge on, are still only pulling about (or less) than 20A.
Nigel has a BCDC1225 charging which ever battery, just like I have a 1220 (his is solar controller capable mine is not). If you flatten an AGM it will recover, but will drastically reduce its life......
They are designed to be permanently connected, all the switch will do is select which battery gets the charge. So no, all things equal, no smoke.
In fact, I have another 1220 in my van, it and the one in the 4x4 both activate from an ignition controlled 70A continuous solenoid. Fortunately, I don't think my alternator is one of the smart types that drop output once started.
The thing is, I manage my batteries so they are not too discharged, so the 2 Redarcs, even with my van fridge on, are still only pulling about (or less) than 20A.
Just having a vent! maybe its just me (because I just dont know enough!) But this is starting to do my head in! Nothing seems to fit! I buy a 40A circuit breaker....it has a 5mm bolt....the wiring is 6mm2....no-one has ever heard of a ring terminal with a 5/6mm hole that accepts 6mm2 wire!. everything I try and connect together is the same! no common sizes!
Have you tried sizing cable lugs? e.g. Narva 57124
http://www.narva.com.au/products/browse/cable-lugs
Jon
http://www.narva.com.au/products/browse/cable-lugs
Jon
Oh I know they exist....the problem is finding somewhere that stocks/sells them!blisters said:
If I was doing this all the time I could carry a stock, but when you are doing a 'one off' its more difficult!
- Joined
- Jun 18, 2013
- Messages
- 676
- Reaction score
- 476
Hi mate,
just reading a little of your dramas. You should be able to get cable lugs from Ashdown Ingram on Lyons St. Should be a pkt of 10.
Hope that helps,
TGW
just reading a little of your dramas. You should be able to get cable lugs from Ashdown Ingram on Lyons St. Should be a pkt of 10.
Hope that helps,
TGW
Thanks TGW, I'll have to wait till Monday, probably the biggest problem I've got is I have a cold! and it just makes me grumpy!
See you at Georges
See you at Georges
- Joined
- Jun 18, 2013
- Messages
- 676
- Reaction score
- 476
See you then, hope your feelin better soon.
