question

Let me know if more values are needed in order to help

The inverter is turning on normally and seems to work just fine apart the fact that it takes abnormally long to charge electronics

Perhaps there is some voltage drop causing this issue? How long are the inverter cables? How powerful is your laptop charger?

Do you have access to a VE.Direct dongle to see the inverter data while working in the Victron app?

Br,

Kampingvan

Unfortunately I dont have the dongle yet...

The cables are really short actually, about 30/40cm

I couldn't see any voltage drops (concerning the battery) while charging.

I will redirect the experience with a voltmeter and take the voltage at the pins of the inverter itself.

The specs on the charger are 100/240v @ 50/60hzand the output is 5v 3a / 20v 2,25a

It should draw between 15 and 45w depending on the use of the computer while charging.

The battery of the computer is around 45wh, yet it charges in like 6hours wich means either the inverter dosnt send all power he can, either i have huge power loss somewhere... Is that a correct interpretation?

Note. I recently thought it might be the cold slowing the charging process (around 10°c these days ) could that be the cold ?

No I run on the normal mode

This is another triggering point : the eco mode by default is supposed to turn on when a +15w charges is detected, however when I charge this computer (or a fast charge phone @30w) the inverter dosnt detect it and so dosnt start. That shows clearly that something is wrong ?

Ok, that is the value given in the book I have.

Well you guys let me know if this calculation and logic is relevant in that scenario... As I dont have any ve direct nor wattmeter, the way to figure at how many watts actually come out was for me to go as :

My laptop battery is 45wh, th'e charger should have a standard current of 5v/3A so more or less 15w of charge whenever the laptop isn't running that gives the average of 3 hours to charge it (Wich is the time it takes on regular power supply)

If here it takes about 6hours we have to go 45/6= 7,5wh.

I Knw there might be power loss and maybe a bit more due to the actual temperatures (about 10°c these days)

I tried many devices but it seems to "underpower" every one of them

You have a voltmeter and a household energymeter? If not, buy them (less than 20€ each possible). Then you can: Measure the batt dc-Voltage (set range min.20Vdc on voltmeter). Dark morning, light midday, dark afternoon, or 7:00 11:00 13:00 17:00.

Measure Watt on a grid-line-outlet for the Charger-brick (your inverter loads). You might see peaks around 70-120W thats normal. Measure w/o pc. Stby & charging. (If its a charger made for HP you might see inverter-overload at start)

AES: many chargers need a few seconds to come up, give them time,

or they will go off (not start). If thats the case every second start, your normally charging-time 3hrs became 6hrs.

[AES: these are my parameters working at 98/99% for a Sun 250 with a Eepc psu load - [ charger only / nur Ladegerät set to AES if you want use that ]]

You have "greyish weather"? (-> ~15% of 250W for 5-6hours -> max. 225Wh input a day).