Recent content by Corbury

Ok - so i did a standalone charge cycle from around 30% up to 100% several things happened: 1. on charge start - Battery A had an orange charge state indicator. Q - does anyone know what this means - web search did not find anything relevant? then it changed to blue after a few min. Battery B...

UPDATE - i changed the settings for the Multiplus down from 100A charging to 40A charging - and the batteries like it much much better. I'm going to wait on the active load balancers until I use the system a while. Thanks everyone.

I got the active balancers from china. check! Here are my suggested next steps: 1. reconfigure the multi-plus to charge less aggressively from shore power - maybe 20A? 2. reset the BMV-712 to 100% once the batteries are fully charged. The BMV is the most accurate indicator of SOC for the...

Btw - here is my install - to tell the truth - if i pull these batteries to top balance them again - i’m likely to just order 2 x SOK 206ah and just call it good. It was fun to build these - and I’m pretty sure i did this by the book - but i want something that is not going to let me down when...

Thank you! Interesting - so I also have a Victron BMV - battery monitor - I was thinking that the BMV indication was less accurate than the BMS - but maybe I'm wrong? BTW - full charge cycles are very low - like 5-7 cycles - these batteries are basically brand new.

Good point - to my knowledge - the answer is NO. Max I can see from my screenshots is 3.616. Maybe the 3.97 is from another poster? But coming back to the max capacity for the battery - has anyone seen the BMS (overkill solar) "reset" capacity to a lower number - by itself? thanks, C

I know - that's what's worrying me. As well - now the BMS is showing 100% at 243Ah - instead of the 271Ah it used to show. This was part of my concern about toasting the batteries. Why did the BMS show this "new" and diminished max capacity - when I did not change any BMS settings?

it this what I'm looking for? I'm just concerned this is too small?

Interesting. I was hoping that these battery modules would be pretty much like an SOK or similar - no need to disassemble when storing. I posted the settings at the start of this thread - cell overvoltage trigger setting is 3650mV and cell full voltage is 3400mV. I think these are the right...

So I read some more on this and looked at some videos. My batteries are tucked in to a bench in the van and not easy to get at for top balancing in situ. Here is what I think I need to do (please correct me): 1. remove them from van 2. take them mostly apart (by removing the BMS) 3...

Is this the one? Heltec 4S 5S 6S 5A Capacitor Active Equalizer Balancer Lifepo4 Lithium Lipo/Titanate LTO for Battery Car Audio Group Balancer https://www.amazon.com/dp/B08JCL4G2X/ref=cm_sw_r_cp_api_glt_i_MYN96KZTSF182BH2DJ72

I will try to buy a couple of those heltec 4s. Thank you!

Hi - i wanted to exercise the battery - so i left the inverter on - it slowly discharged the battery over a couple days. I totally agree the charging is too aggressive- i will reduce the charge settings. In storage - i fully disconnected the battery. Thank you!!

I figured out the top balance in situ thing.

Thanks - What are you using for busbars and what active balancer are you using - i went looking and found like 100 different active balancers for 4s lifepo batteries!