How long would you expect it to take for solar panels to charge my batteries?

[Oinkoink]

Being new to motorhoming, most of my knowledge has come from reading the motorhome fun forums so please excuse my ignorance. Let me put some detail on my question. 2019 Pilote on a Fiat chassis bought last January was on hook up while it was cold at home, 3 trips out so far all using hook up, then without hook up the battery was at 9v after 3 hours with just the lights on and cut out. Have replaced the two 100ah gels with 2 AGM 95ah. Took M/home for 45min run batteries 13.8v 96% charged switched the fridge on overnight drawing 12amp by the morning had an hour of running left with 11% so switched everything off midsummer day not a cloud in the sky all day the solar panels put in 25% there 2 of them at 500 x 1000mm I would imagine fitted by Pilote don’t know the wattage.
That was rather a long winded explanation, any answers would be appreciated!!!

 

[funflair]

What is the fridge, 3 way or compressor? 12 amps all night could be 120 ah which is all your 2x95 ah AGM have in them,

 

[Neil S]

why didnt you run the fridge on gas , a 2019 Pilote has a 3 way fridge as a standard fitment
battery setting is for when in transit , gas for when camping off grid and when EHU is available use the 240v setting

 

[Raul]

Blimey, you really hammering those batteries. The solar at a guess 150w total, maybe 12a for 6hrs a day max in very sunny condition, about 70ah max per day, maybe less. So you could afford a 70ah if sunny. Assuming you have a mot controller on those panels, if not, the the harvest will be allot less, probably 50ah per day max.

 

[dunnah01]

Sounds like about 200w of solar so max you can get is about 15A/h but probably nearer to about 12A/h. So 5hrs to charge back up if fridge was on for 50% of the time.

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[Hettie's Crew]

switched the fridge on overnight drawing 12amp by the morning had an hour of running left with 11%

There’s the problem, fridge on 12v instead of gas. Did you do this with the previous Gel batteries too, before you replaced them? Shame to replace Gel’s with AGM’s, the Gels would have survived the trauma better.
The fridge should be left on Auto so it can decide if it needs 12v power, only when the engine is running, 240v when plugged into EHU or gas when neither of the former are available.

 

[Oinkoink]

why didnt you run the fridge on gas , a 2019 Pilote has a 3 way fridge as a standard fitment
battery setting is for when in transit , gas for when camping off grid and when EHU is available use the 240v setting

Sorry I should’ve said ,I wanted to learn what the batteries could do and find out the recovery time I wouldn’t normally use batteries to run the fridge , thank you for your answers

 

[Lenny HB]

Have replaced the two 100ah gels with 2 AGM 95ah.

Why on earth did you do that.
For lead acid batteries for leisure use Gels are about the best and AGM are about the worst.
Have you set your chargers correctly for AGM solar and mains as they won't work very well on Gel settings and will have a short life.

 

[Hettie's Crew]

Sorry I should’ve said ,I wanted to learn what the batteries could do and find out the recovery time I wouldn’t normally use batteries to run the fridge , thank you for your answers

Not a bad idea to experiment but running AGM’s down that far can, I believe, damage them.