I have the ctek 250 with a Renogy 100ah LiFePo and a 100w solar panel.
The ctek issue is more of a minor pita rather than a major problem.
eg I’ve just been away to Ripon and put the fridge on in the van in the morning before setting off - LB 100%
By the time we set off the LB was down to about 96%.
Drive to Studley Royal Deer park - no output from CTEK during journey. Leave parked in sun - no output from solar via CTEK.
Park up for night in Ripon and LB down to 90% and by following lunchtime it’s about 82%.
Drive to Harrogate and CTEK kicks in and gets LB to 90% by time of arrival and carries on charging via solar while we are in Harrogate.
So basically the CTEK doesn’t kick in until the LiFePo is about 85%, so you can get to site having us a full day driving and already have a depleted LB when you park up which is annoying. So if you are having a week on a site off grid then your solar will have to have enough juice to cover your daily useage and a little extra if you want to push the battery back to 100%
The ctek issue is more of a minor pita rather than a major problem.
eg I’ve just been away to Ripon and put the fridge on in the van in the morning before setting off - LB 100%
By the time we set off the LB was down to about 96%.
Drive to Studley Royal Deer park - no output from CTEK during journey. Leave parked in sun - no output from solar via CTEK.
Park up for night in Ripon and LB down to 90% and by following lunchtime it’s about 82%.
Drive to Harrogate and CTEK kicks in and gets LB to 90% by time of arrival and carries on charging via solar while we are in Harrogate.
So basically the CTEK doesn’t kick in until the LiFePo is about 85%, so you can get to site having us a full day driving and already have a depleted LB when you park up which is annoying. So if you are having a week on a site off grid then your solar will have to have enough juice to cover your daily useage and a little extra if you want to push the battery back to 100%