flat terybat

[Timx]

why would both batteries be flat in the morning if everything was off during the night,??

[Naughty Cal]

Knackered?

[Chris Pink]

I quite liked Smiley Pete's list. Seemed to cover every possibility.

 

For diagnosing any problems like this it's good to have a half decent multimeter as a bare minimum.

 

The problem itself could be one or more of: failing batt(s), defective alternator, failing starter, bad batt isolator, defective or undersized split charge relay, corroded or loose batt terminals, poorly made or corroded crimp terminals, broken alt or split relay connections, undersized wiring so on....

 

Trying to diagnose the problem via a forum without any voltage or current readings whatsoever is really not the best way to go.

 

In the longer term it'd be good to fit a half decent panel voltmeter, and at least get some idea of what readings to expect when things are working normally.

 

cheers, Pete.

~smpt~

Are you a relative of Stanley Unwin?

Edited June 7, 2013 by Chris Pink

[bizzard]

Check for something very very heavy that fell upon them during the night.

[Chris Pink]

You're right, he didn't cover that one.

[RLWP]

Short answer - something was still on even though you thought everything was off

 

Richard

[Timx]

yeah i think that but not the starter battery

When i get to newbury i will get someone to look at it, its just getting to a and b now

[Naughty Cal]

Are your isolators turned on?

[bottle]

Something On, and the split charge system is not dis-engaging, so both batteries are connected together all the time.

[Timx]

mm so the dial saying both or 1 or 2, we have left at both so they are connected, so at night best thing to do is change to one or two as not sure as which is which

[Chris Pink]

It's easy to find out. Disconnect one terminal at the battery then the position that is still working is the other battery.

[bottle]

mm so the dial saying both or 1 or 2, we have left at both so they are connected, Yes so at night best thing to do is change to one or two Yes as not sure as which is which See Chris's post above.

 

This also implies that you do not have an automatic, split charge system (relay or diode) but manual selection.

 

Depending on how the connections are configured: assuming no.1 is the start battery ands no.2 is domestic.

 

 

Select no.1, start engine, when engine running, select Both.

 

When moored and engine stopped select no.2.

 

To start enigine, select No.one....

[Timx]

thank you will try that but trouble now is the engine overheating and no one to help unless anyone near the royal oak in wooton rivers

[Chris Pink]

Which network gives Internet coverage at Wooton Rivers?