Needing help... I have a 2006 Gulfstream Friendship G7 with a Freedom 458 Inverter/Charger that's not charging the batteries.I have went through all of the diagnostic manuals and everything has passed including the resistance if the 1/4 amp fuse was blown. I have checked the voltage coming out and it's exactly what it's supposed to be, but still not charging batteries.I can unplug the shore power and plug in a charger to the batteries and they will charge OK with no problems...?Any Ideas.....?

Have you located the large fuse in the 12 volt DC line to the batteries?

enblethen wrote:Have you located the large fuse in the 12 volt DC line to the batteries?yep, that is what I would guess.rig a test light, and use it to jumper the big fuse while trying to charge the batteries, If it lights replace the fuse.NAPA has a replacement for $10

enblethen wrote:Have you located the large fuse in the 12 volt DC line to the batteries?The 'fuse' may actually be an automotive type circuit breaker. With either shore power connected or the generator running, check the voltage across the negative and positive terminals of the batteries. You should be getting more than 12VDC; probably 13.5+ VDC. If not, connect a jumper wire across the breaker and then again measure the voltage across the battery terminals. If the voltage increases above 12VDC, then the breaker is defective. Breakers are available at most auto parts stores for $10 to $15. Hope this helps.

Everyone thanks for your replies and I will check today

What does your Freedom Panel say? Does it show Charging, what is the voltage output?You should have either a BIRD or BCC, which controls a Isolater relay. Look closely at the B+ terminals or the batteries (12 V to Ground Terminal), do you see a Wire with a fuse. Is it clean?This wire is the sensing voltage which informs the BCC or BIRD that the charge voltage is at a high enough level to close the Isolator relay. Do you have a diagram? Also, read the voltage on the Red & Black terminals of the Xantrex, is it above 13.5 Volts. Trace the wire from the red,

Charging Problems Freedom 458 Inverter/Charger | Good Sam Community

Tom_Barb
Explorer
Feb 14, 2015
gb71631 wrote:
Tom/Barb wrote:
enblethen wrote:
Don't get confused about the fuse. It is not a small automotive. it could look like this.
Fuse

Our's looks like THIS

Mine looks like the eBay link too. Just got back from checking it as it's right above the inverter and it checked OK.

The control panel inside the RV shows everything to be working correctly and charging. The voltage that comes out of the inverter charger matches the inside too, but the battery voltage at the batteries don't. There has to be something in between causing the loss.

How did you check it?

You must remove it and check continuity or jumper it with a test light while the charger is on.

Have you worked on the battery pack lately?
Tom_Barb
Explorer
Feb 14, 2015
gb71631 wrote:

The control panel inside the RV shows everything to be working correctly and charging. The voltage that comes out of the inverter charger matches the inside too, but the battery voltage at the batteries don't. There has to be something in between causing the loss.

Remember, the battery voltage will not read the same as the charging voltage until the batteries are fully charged.
gb71631
Explorer
Feb 14, 2015
Tom/Barb wrote:
gb71631 wrote:

The control panel inside the RV shows everything to be working correctly and charging. The voltage that comes out of the inverter charger matches the inside too, but the battery voltage at the batteries don't. There has to be something in between causing the loss.

Remember, the battery voltage will not read the same as the charging voltage until the batteries are fully charged.

Checked the fuse the typical way with a continuity meter.
gb71631
Explorer
Feb 14, 2015
Put in new batteries last year when I purchased the RV. Thought it was just time to replace... now I wished I checked them first. Most likely they didn't need replaced at all...
gb71631
Explorer
Feb 14, 2015
Going to take the circuit light and follow the positive to see where the voltage drop is now and see what's going on...

Thanks again everyone for your input.
Tom_Barb
Explorer
Feb 14, 2015
gb71631 wrote:

Checked the fuse the typical way with a continuity meter.

when doing it that way, you must disconnect one end, other wise the meter will find continuity by some other circuit, take it out, hold it in your hand and check continuity with the meter.
RayChez
Explorer
Feb 15, 2015
You might want to check with the Gulf Stream forum. Many members there with the same type of coach you own.

www.gsowners.com
gatorcq
Explorer
Feb 15, 2015
disconnect the fuse from 1 side. best way to test.
By the way, if one side of the fuse is high and the other side is low, then it's bad. I am not talking about a few millie volts

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