Battery won't take a charge, please help!!

[TantoTrailers]

So it's been a long time since I've posted here and it's been a few months since the last camping trip with the trailer but somehow for some reason my battery stopped taking a charge. I'm not sure if it's my Victron shore charger or if it's the battery...I have some screen shots that I hope may be useful to someone who knows what they are looking at but this stuff has always been a bit of a mystery to me! Can anyone help me out or point me in the right direction? I am supposed to be camping this weekend but that may not be possible if I can't get the battery to charge.

100Ah Duracell AMG
Victron IP67 12/25 Shore Charger

 

[TantoTrailers]

Here is a diagram of the setup

 

[Mickey Bitsko]

Do you have a multimeter, test the charge output.
Do you have battery load tester, How old is the battery,
It's not magic.

 

[TantoTrailers]

The battery is from late 2019 or early 2020. I'll hook up a multimeter here soon, but I don't have a load tester.

 

[Mickey Bitsko]

Have you been keeping the battery topped off ?
If it's a deep cycle battery and was not completely charged when last used there's
A good chance it needs replaced.
If it's a deep cycle battery they like to be used frequently.
If the battery IS from 2019 (probably made in 2018) makes it 4yo.
Generally speaking, car/rv batteries last longer when they are cycled.

 

[TantoTrailers]

Victron IP67 bit the dust, failed firmware upgrade twice and is now unresponsive. Dark n dead, blue brick.

 

[TantoTrailers]

Have you been keeping the battery topped off ?
If it's a deep cycle battery and was not completely charged when last used there's
A good chance it needs replaced.
If it's a deep cycle battery they like to be used frequently.
If the battery IS from 2019 (probably made in 2018) makes it 4yo.
Generally speaking, car/rv batteries last longer when they are cycled.

Yea this battery has been sitting for about 2 years fully topped off connected to the IP67. I used it for maybe 4 or 5 trips during the last 2 years and it was cycled down to about 60% then fully charged. What's odd is that I had no issues in August. I have had a temp charger on it for about 2 hours and it hasn't charged it at all according to the victron display but the meter on the charger has gone up.

I'm getting about 12.5v on my multimeter off the battery

 

[Mickey Bitsko]

Temp charger?

 

[TantoTrailers]

Temp charger?

Temporary*

 

[Buddha.]

Well that sucks, we spend more on a victron for the perceived reliability and then this happens.
Might as well buy a noco.

 

[TantoTrailers]

Well that sucks, we spend more on a victron for the perceived reliability and then this happens.
Might as well buy a noco.

Welllll that's what I'm actually using as my backup! I "upgraded" from a Noco to Victron!

 

[TantoTrailers]

I'm stumped AF....I have a renogy solar charge controller and it's showing me 95% where Victron is showing 71%...very similar voltage reading.

Battery may not be toast after all but what gives with the inconsistent readings?!

Looks like the IP67 is still within the 5 year warranty, hopefully they don't give me crap for shortening the cables...

 

[Alloy]

I'm stumped AF....I have a renogy solar charge controller and it's showing me 95% where Victron is showing 71%...very similar voltage reading.

Battery may not be toast after all but what gives with the inconsistent readings?!

Looks like the IP67 is still within the 5 year warranty, hopefully they don't give me crap for shortening the cables...

There's allot of slip and slide when calculating battery capacity. It's far from perfect. You'd have to dig into both the Renology and Victron and compare the settings to know why there's a difference.

Are they both using the same shunt?

The only thing connected to the neg battery terminal is the shunt?

Is there any charge coming off the solar? How about the truck?

12.5V is good. 12.6-12.7V is ideal but that's for a battery with nothing connected / no load.

 

[TantoTrailers]

There's allot of slip and slide when calculating battery capacity. It's far from perfect. You'd have to dig into both the Renology and Victron and compare the settings to know why there's a difference.

Are they both using the same shunt?

The only thing connected to the neg battery terminal is the shunt?

Is there any charge coming off the solar? How about the truck?

12.5V is good. 12.6-12.7V is ideal but that's for a battery with nothing connected / no load.

No load on anything anymore I pulled the main fuse. No additional charge sources just the temporary Noco directly to the battery terminals. Victron still showing 70% while Renogy showing 100%, both showing 13.5v.......

 

[Alloy]

No load on anything anymore I pulled the main fuse. No additional charge sources just the temporary Noco directly to the battery terminals. Victron still showing 70% while Renogy showing 100%, both showing 13.5v.......

If the neg of the Noco is connected to the shunt the monitors will show the charge amperage.