Jeanneau 43DS Battery Charger

Sailfree

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Boat is 2005.

Seems to be low voltage now - not going above 12V.

Its been replace once with another make circa 2009.

I have 3 number 125Ah batteries and 1 number 125 Ah engine battery and 2 spiral wound bow thruster batteries.

With modern electrics getting more compact are there any chargers that people recommend now.

I think the original failed one was a Christec and been reading some not favourable reports.

What amperage would you recommend.

No special high loads usual navigation equipment and Fridge!
 
Agree - this is a good charger, I fitted one last year.

Thanks guys.

I will lift the bed and check Amp rating and number of outlets as bow thruster was deleted from Jeanneau order and fitted by dealer so not sure how they tacked on the charging circuit!

Also check charger output voltage in case lower voltage is corroded connections. At main switch panel it was 11.8v when with charger switched on I would expect about 13.5V and fully charged battery to be 12.8V.

Like all things discovered this when correcting another fault! LPG alarm kept going off. Checked all gaz connections and turned off gas for a few days (free electricity in Nazare Marina so use a double induction hob and microwave for most cooking) but no leak and alarm kept triggering so new LPG alarm!! Threading sensor cable through boat and checking connections for alarm to discover only 11.8V !! Luckily adequate for alarm.

As always when there are no problems - it means your dead!!
 
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Lifted Bed and had a quick look to identify the existing charger. It is Victron Energy, Phoenix Charger 12V 50A.

Lights show its on absorption charge. Fault light is not illuminated. Do these chargers slowly loose efficiency and charge voltage drops or do they just fail.

At panel Voltmeter is holding at 11.5V.

Boat is permanently on a berth and charger on 24/7 except say 6hrs overnight.
 
Lifted Bed and had a quick look to identify the existing charger. It is Victron Energy, Phoenix Charger 12V 50A.

Lights show its on absorption charge. Fault light is not illuminated. Do these chargers slowly loose efficiency and charge voltage drops or do they just fail.

At panel Voltmeter is holding at 11.5V.

Boat is permanently on a berth and charger on 24/7 except say 6hrs overnight.

Have you measured the charging voltage at the charger?
 
Have you measured the charging voltage at the charger?

No I just held bed up to take photos and identify model. I will need to take the cover off. Just considering lower voltage due to lead acid batteries sulphating up. They were bought from Battery megastore in July 2013 and at a good price so I think that's a distinct possibility.

Notice the cranking battery is showing 12.8V and house batteries are showing 11.5V. I'm assuming the battery charger will be the same output on each terminal so suspect sulphating of the 7yr old batteries the most likely.

Currently in lockdown in Nazare Marina. Hope to travel back to UK say late June/July for a few days (by car) so will investigate voltage on each output and bring replacement (probably batteries) out on return journey.

Thanks for advice.
 
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No I just held bed up to take photos and identify model. I will need to take the cover off. Just considering lower voltage due to lead acid batteries sulphating up. They were bought from Battery megastore in July 2013 and at a good price so I think that's a distinct possibility.

Notice the cranking battery is showing 12.8V and house batteries are showing 11.5V. I'm assuming the battery charger will be the same output on each terminal so suspect sulphating of the 7yr old batteries the most likely.

Currently in lockdown in Nazare Marina. Hope to travel back to UK say late June/July for a few days (by car) so will investigate voltage on each output and bring replacement (probably batteries) out on return journey.

Thanks for advice.

If the charger is on absorption the voltages should be higher, even if the batteries are totally knackered. Check the voltages at the charger, as per PVBs suggestion.

Unless they more or less match the chargers set absorption voltage, the charger is faulty. If they do match, you have some bad connections. I suspect the charger.
 
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