Newbie

[adam1111]

Hi all looking for some advice if possible I have a ruby baily 98yr.

My on board charger is pumping 10.2 volts to battery but doesn't seem to keep it charged.

Could it be my battery is to powerful or a fault

Thanks adam

 

[Hutch]

Welcome Adam, I think you have a problem with the charger, it should be putting out about 13.5 volts , when you measure the volts at the battery terminals with a multi meter. Caravan voltage meters of that era were not very accurate.

 

[adam1111]

Welcome Adam, I think you have a problem with the charger, it should be putting out about 13.5 volts , when you measure the volts at the battery terminals with a multi meter. Caravan voltage meters of that era were not very accurate.

I used a multimeter and only getting 10.2 v so that means a new charger then

Thank u for Ur help

 

[Hutch]

I used a multimeter and only getting 10.2 v so that means a new charger then

Thank u for Ur help

Adam , Apuljack engineering , do excellent repairs and upgrades for Chargers and power units.

Apuljack Electronics

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www.apuljackelectronics.co.uk

 

[Buckman]

Have you tried disconnecting the battery and measuring across the terminals?

 

[adam1111]

Have you tried disconnecting the battery and measuring across the terminals?pno I haven't

Have you tried disconnecting the battery and measuring across the terminals?

No but I think my battery is maybe to powerful it has 4 terminals on it so maybe I need a smaller battery what you think

 

[Beardy]

No but I think my battery is maybe to powerful it has 4 terminals on it so maybe I need a smaller battery what you think

4 terminals is a new one to me. Can you provide details of the battery (make, type etc) or post a photo of it?

 

[adam1111]

4 terminals is a new one to me. Can you provide details of the battery (make, type etc) or post a photo of it?

Here is a photo of battery and circuit breaker that it connects to

I've just checked hand book it's says it can accommodate a 90ah battery but 40-50ah is recommended does that mean I need a smaller battery

 

[otherclive]

Here is a photo of battery and circuit breaker that it connects to

I've just checked hand book it's says it can accommodate a 90ah battery but 40-50ah is recommended does that mean I need a smaller battery

No, as a battery charger is rated in output amps. A small charger output of say 5 amps will take longer to fully charge a 100 amp hr battery than it would a 70 amphr battery. I have used a 5 amp CTEK charger on 105 amphr batteries.

 

[adam1111]

No, as a battery charger is rated in output amps. A small charger output of say 5 amps will take longer to fully charge a 100 amp hr battery than it would a 70 amphr battery. I have used a 5 amp CTEK charger on 105 amphr batteries.

So would u say it's definitely the onboard charger is at fault as it's saying 10.2 on multimeter

 

[otherclive]

So would u say it's definitely the onboard charger is at fault as it's saying 10.2 on multimeter

Looks like it if you have charged the battery with the caravan unit, disconnected the battery terminals and then measured the battery voltage and it is still low.

 

[adam1111]

Looks like it if you have charged the battery with the caravan unit, disconnected the battery terminals and then measured the battery voltage and it is still low.

Brilliant thank u

 

[Buckman]

Never come across a leisure battery with 4 terminal points as the majority only have 2 terminal, positive and negative? Maybe it is connected to the incorrect terminals? What is the make of the battery? A picture would be helpful?

 

[adam1111]

Never come across a leisure battery with 4 terminal points as the majority only have 2 terminal, positive and negative? Maybe it is connected to the incorrect terminals? What is the make of the battery? A picture would be helpful?

 

[adam1111]

It's a yuasa marine line m27-90 won't let me post pic

 

[toad a caravan]

Some had 2 post terminals a + and a - also 2 stud terminals a + and a -

 

[adam1111]

Some had 2 post terminals a + and a - also 2 stud terminals a + and a -

Must be stud terminals as the just look like bolts coming out

 

[toad a caravan]

If the OP is using the post terminals they should only fit one way as the positive terminal is larger

 

[Buckman]

A new one on me. States that the battery is specially designed and built for marine starting applications. Not sure if that makes any difference, but why not disconnect the terminals and test across them?

 

[toad a caravan]

What are your other terminals shape (like thimbles)?

 

[toad a caravan]

I've got 4 on mine Buckman

 

[adam1111]

A new one on me. States that the battery is specially designed and built for marine starting applications. Not sure if that makes any difference, but why not disconnect the terminals and test across them?

It's currently on charge but will be checking that before connecting back to caravan

 

[adam1111]

What are your other terminals shape (like thimbles)?

Yes this is like mine

 

[toad a caravan]

I notice a boat is shown on the label ,may be sealed differently for marine use

 

[toad a caravan]

As label says