Ective CSI 10 and Li time 100ah lithium battery

hi guys,

i almost completed building my van but i experience some strange behavors and i wonder if i can get some advice here. Let me give you some more information about my setup:

  • my van is a Renault Master 2003
  • i have an Ective CSI10 for charging, automatic switch and invertor all in one
  • i am using a Li time 100AH lithium battery
  • my battery powers up few led lights, one 12V fridge and shurflo water pomp
  • i also hooked up a Renogy 20A DC to DC

if you need more information about my setup, don’t hesitate. Below, i will summarize the strange behavor i am dealing with right now:

  • When i leave my van overnight without plugging it in, the next day my battery is empty
  • when i plug my van in,the chargers fan will run continuously
  • when the van is plugged in, always the first three leds on Ective display are blinking which means my battery is %40 but it stays there
  • when i plug it out, all leds are on which means it is fully charged
  • when i leave my van overnight plugged in (happened only once) red led indicating fault was on, it disappeared after restarting

I thought i should be at least two days off grid with this setup but now, i never know when my battery is fully charged and why this is happening. can you show me the right direction please?

I found something in the manual that may or may not be of interest:

If the inverter mode is activated, the batteries will not be charged despite available shore power. If the inverter is switched off, the batteries will be charged by the charger in case of available shore power.