Pete7

Interesting, but is only a 100A shunt so limited. We draw 75A with the kettle at night time so no solar to help and can draw 95A running the Sterling Induction hob. Just been looking at a Ninja Air Fryer but they draw 1550w and the Sterling inverter is only 1600w so that's on hold for the moment. We should really fit a second 120A Sterling LFP first to spread the loads a bit. Oh and would love one of the new LG bi-facial solar panels which can add 10 - 26% extra by absorption to the rear of the panel. Not sure this would work on a motorhome though as you need a big air gap to get the reflected light to the back of the panel. Fun and games, to think we started with 45w of solar a decade ago just to keep the batteries topped up when away from the boat. Merry Christmas folks (lol)

Weldted, I use a Victron Orion or DC>DC charger as they are sometimes called to regulate the amount of power going to the LFP. Without this, the LFP would draw full power and overheat the alternator in quick time. The B2 B also means I can set up a lithium profile to charge with. This enables me to set a limit at 13.8v and a float at 13.45v. This means the LFP isn't fully charged all the way to the top of the knee, stopping just short. Now the float is set at 13.45v. If the LFP voltage is above this, no current is supplied to the battery. Only when the voltage drops below 13.45v plus the 0.05v offset does the B2B then supply power, mainly to feed the domestic loads and stop the LFP from being discharged further. The same applies to the solar MPPT, when using the van / boat set the float about 13.45 and use the solar to run domestic appliances. So I am using the Orion B2B to control the charging rather than the BMS. I have just been watching John and Mandy who have a van You Tube channel https://www.youtube.com/c/JohnMandy/videos A year ago they fitted Polynovel LFP batteries. Reading the updated comments, they have removed their recommendation and replaced the batteries already. I read through the comments but couldn't get to the bottom of the problem in such a short term. Sadly they won't be the last until this technology becomes bomb proof and trully drop in, which it isn't at the moment. Pete

Mike thanks, some interesting comments. One of the problems of the Daly BMS is the balance is only 0.030v hence why people are starting the balancing lower down. Pete

Karen, you have the cell reference voltage at 3.6v. Surely it should be 3.2v? Though I am not sure if it actually makes any difference. Pete

Karen, yes we had the same problem, but the password was easy enough to Google. I have been watching Andy on the YT channel Off Street Garage and plan to use some of his settings over the next few days. Particularly setting the charge to 3.45v per cell and the float slightly less, the MPPT offset to just 0.1v so the MPPT switches back in early to enable power from solar to run day time domestic items rather than drawing down the LFP. The trail current will be set to 1A per 100A battery. That's on the Victron, then similar settings on the Sterling LFP. I did pop into Sterling to pick up the LFP but they wouldn't say who the cell manufacturer is other than they are plastic cased, so probably not Eve types. However, over all we are impressed and wouldn't want to go back to a pure-lead acid solution.

Karen, how are you getting along with the Sterling Lithium? We have a 120Ah from Sterling which has done sterling work this summer enabling us to use the electric kettle and toaster rather than gas which given the calor gas fiasco has been a life saver. However, we have one cell that races away above the others when then reach 3.4v per cell. Pete