Starter Battery

[KC-AR240]

Your batteries are probably old and the plates sulphated. What you just described about the voltage going to zero wen you turn the key and attempt to start is text book typical of a battery that has voltage but no ampere’s left to provide.

Go get a new set of quality batteries and you should be good to go.

What amperage noco charger do you have?

No, it only dropped by .4 while turning the key

 

[FSH 210 Sport]

No, it only dropped by .4 while turning the key

Well in a reply in this thread you said the blower and radio went silent when you turned the key, so the voltage went to zero.

 

[anmut]

Well in a reply in this thread you said the blower and radio went silent when you turned the key, so the voltage went to zero.

I agree with this. Don't trust the voltage meter on Connext either...

He can prove or disprove the voltage issue by either
- using emergency parallel switch
or
- swapping out batteries

 

[FSH 210 Sport]

I agree with this. Don't trust the voltage meter on Connext either...

He can prove or disprove the voltage issue by either
- using emergency parallel switch
or
- swapping out batteries

Remember what father said Shirley, When everything that is plausible has been eliminated, whatever remains however implausible has to be the answer.
Mycroft Holmes

 

[anmut]

Remember what father said Shirley, When everything that is plausible has been eliminated, whatever remains however implausible has to be the answer.
Mycroft Holmes

Always start with the simplest solution.

 

[FSH 210 Sport]

Hook up your voltmeter to the start battery, then turn the key to start and see what happens.

I had a battery do the same thing as yours is doing years ago… voltage was fine until a load was placed on it, then nothing.

 

[meaningreen]

It dropped a tiny bit. 11.9 and then back up

Dropping to 11.9V is a big drop in terms of the battery, means it's below 40% I'd say that battery is toast. Others mentioned moving the switch to parallel or emergency and see if it starts.

 

[KC-AR240]

1st of all I want to thank everyone that offered advise. I thought that if a battery was fully charged and showing high enough voltage that that means it's good ...... So I removed all 3 batteries, swapped in 1 of the "house"batteries and it started right up.

 

[KC-AR240]

1st of all I want to thank everyone that offered advise. I thought that if a battery was fully charged and showing high enough voltage that that means it's good ...... So I removed all 3 batteries, swapped in 1 of the "house"batteries and it started right up.

I took the advise here to put my meter on the battery and I had my wife try to start it and it dropped to 1.... Thanks Again everyone

 

[FSH 210 Sport]

I took the advise here to put my meter on the battery and I had my wife try to start it and it dropped to 1.... Thanks Again everyone

Sounds like it might be time for three new batteries to start the season fresh. Glad you got it sorted.

 

[FSH 210 Sport]

Dropping to 11.9V is a big drop in terms of the battery, means it's below 40% I'd say that battery is toast. Others mentioned moving the switch to parallel or emergency and see if it starts.

Under starting conditions a drop into the 10 V range is normal.

 

[meaningreen]

Under starting conditions a drop into the 10 V range is normal.

True if it's cranking, but he stated it didn't even turn over.

 

[FSH 210 Sport]

True if it's cranking, but he stated it didn't even turn over.

Look at post #21, he said it dropped to 11.9 on the connext screen when he turned the key, so he was attempting to crank the engine, but the connext screen was wrong because when he had the radio and blowers on they would turn off when he turned the key to crank the engine so the voltage went to 0 not 11.9, this was confirmed in post #29 when he used his multimeter to check voltage when he had his wife turn the key.

 

[meaningreen]

Look at post #21, he said it dropped to 11.9 on the connext screen when he turned the key, so he was attempting to crank the engine, but the connext screen was wrong because when he had the radio and blowers on they would turn off when he turned the key to crank the engine so the voltage went to 0 not 11.9, this was confirmed in post #29 when he used his multimeter to check voltage when he had his wife turn the key.

I'm not disagreeing with your comment about it dropping when you try to start, when he tried to start it dropped to 11.9 on screen and the engines didn't turn over. That is what lead to my assessment of the battery being toast. If it's a good battery yes voltage will drop as current is pulled for the starter and will attempt to turn over the engine. The voltage dropped thus the starter got current and no turn over, bad battery as not enough juice, or bad starter. But he confirmed good starter when he swapped batteries.