Here’s my equipment:Battery Monitor with shunt. ( not a Victron or Trimetric but seems to be accurate)Trojan T-105’s x 2 ( one month old, water level is good)Progressive Dynamics 55 amp converter with charge wizard( I replaced a WFCO)200 watts portable solar.6 AWG cables from converter to battery via battery disconnect switch. Looks like about a 5-6 ft run.I have a new Fifth Wheel. It appears that my batteries are not charging above 90% using the converter. Seems the charging amperage is minuscule above about 87% or so. On the converter a whole day goes up like .4 %. Today my monitor basically showed no charge from converter (less than 1 amo) I hooked up solar today and was getting about .5 Amps charging but was charging. I did not have a battery monitor on my previous fifth wheel but the voltage and behavior of the charge wizard indicated I was charging to 100% after a couple days. Is it possible something like the battery cutoff is retarding charging from the converter?

Mount four hundred solar watts on the roof. Connect to a good controller then to the batteries all with adequate wiring. Forget about the converter.

You won't know a thing for sure until you put an hydrometer in those batts and get the truth about where you are at.Also you need the voltage at the battery posts to compare with the voltage at the converter terminals, which you get from your digital multimeter.After that, you can judge whether your monitor is accurate.

How many amps are going to the battery when the converter is at 14.4 volts?

time2roll wrote:How many amps are going to the battery when the converter is at 14.4 volts?When I 14.7 from solar today, amp to battery was .5. Battery was showing 90.1 %.

PD has 40+ amps available. Solar I don’t know depending on conditions.Half percent of capacity at 14.4 volts, one amp in your case, is considered full. You may need to just reset the monitor or the battery needs to be equalized.Hydrometer test will also tell how charged the battery is.

Battery Charging Troubleshooting | Good Sam Community

Lwiddis
Explorer II
Sep 21, 2020
Mount four hundred solar watts on the roof. Connect to a good controller then to the batteries all with adequate wiring. Forget about the converter.
BFL13
Explorer II
Sep 21, 2020
You won't know a thing for sure until you put an hydrometer in those batts and get the truth about where you are at.

Also you need the voltage at the battery posts to compare with the voltage at the converter terminals, which you get from your digital multimeter.

After that, you can judge whether your monitor is accurate.
time2roll
Nomad
Sep 22, 2020
How many amps are going to the battery when the converter is at 14.4 volts?
dccamper
Explorer
Sep 22, 2020
time2roll wrote:
How many amps are going to the battery when the converter is at 14.4 volts?

When I 14.7 from solar today, amp to battery was .5. Battery was showing 90.1 %.
time2roll
Nomad
Sep 22, 2020
PD has 40+ amps available. Solar I don’t know depending on conditions.
Half percent of capacity at 14.4 volts, one amp in your case, is considered full. You may need to just reset the monitor or the battery needs to be equalized.
Hydrometer test will also tell how charged the battery is.
BFL13
Explorer II
Sep 22, 2020
dccamper wrote:
time2roll wrote:
How many amps are going to the battery when the converter is at 14.4 volts?

When I 14.7 from solar today, amp to battery was .5. Battery was showing 90.1 %.

The battery was not showing any percentage. Your monitor might have been what was showing that. You don't have a clue if the monitor is correct.

You need to start from scratch as stated before.

I assume you have read this for your T-105s, but if not--

https://www.trojanbattery.com/pdf/TrojanBattery_UsersGuide.pdf
MEXICOWANDERER
Explorer
Sep 22, 2020
You must zero your amp hour meter when all battery cells hydrometer densest gravity example 1.285
dccamper
Explorer
Sep 22, 2020
Checked with my hydrometer and reading 1.225 so the 90% sounds about right. I have the converter in boost mode now with charging rate of .335 amps. The percentage charged is going up slowly. Can anyone recommend a stand alone charger which would equalize charge the T105's?
BFL13
Explorer II
Sep 22, 2020
dccamper wrote:
Checked with my hydrometer and reading 1.225 so the 90% sounds about right. I have the converter in boost mode now with charging rate of .335 amps. The percentage charged is going up slowly. Can anyone recommend a stand alone charger which would equalize charge the T105's?

You did not even read the Trojan guide!!! :( If you did, you would see that 1.258 is 90% and your 1.225 is maybe 73% ish.

Yes, you want 16.2v to equalize the Trojans (first you have to get them full using 14.8v) You can do that with this converter, used as a portable charger by just putting a set of cut off jumper cables in the terminals and clamp to the battery bank. the adjustable voltage mode goes from 13-16.5v. (You set the converter voltage before you clamp to the batteries)

https://www.boatandrvaccessories.com/products/powermax-pm3-60lk-12-volts-60-amp-power-converter-battery-charger-w-led-light
time2roll
Nomad
Sep 22, 2020
Maybe your solar has equalization setting?
Some like the Meanwell brand adjustable power supplies for this application. 2 to 5 amps should be fine. More power makes for a good backup charger.

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