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Or this: https://www.researchgate.net/figure/Experimental-OCV-SOC-curve-for-LiFePO4-battery-cell-under-testing_fig2_273161090

Hi. I found this: https://batteryuniversity.com/learn/article/how_to_measure_state_of_charge Bye Timm

Hi I know normaly i can´t say at LifePO4 Batteries this, but it´s possible to say if the Voltage about 12V(12,0/12,1) the SOC is about 40/50%? The Problem is that i have a D-Star Controller always on and this unit use 400ma, but the BMS knows only at 500ma and above. Bye Timm

Ah OK, the BMS don´t messure the amps, only see Voltage drops, that maybe explain it. So i think thats normal for this Battery, a point that i didn´t know to care about it, before i bought it. Thanks Timm

Hi George The Battery is the LIX200 from Wattstunde.de. But what i wanna know is, is this normal, like every BMS recognize the current only over 0.5amps? Or is this unnormal? Thanks Timm

Hi sorry Amps, not Volts The BMS from my LifePO4 200Ah Battery don´t recognize a current below 0.5V, is that normal? The Problem is, i got a D-Star Controller on my System 24h/day and it takes 0.4amps, and the BMS shows my 100% but it can´t be. It shows also that the Battery is on Standby...

Hi All DC. What i have thought right now is, that i got 400mA discharging for 24Hrs and 7D/week, but the BMS don´t schow me this, think the BMS "sees" the Discharging above 500mA. The App told me Standby, but this is not true, because of the 400mA, also at night. Maybe this is why its nit...

Right now i got -4.7amps. My IC-9700 in RX-Mode a 15watt lamp My IPad is charging My Smartphone is charging 78% and 12,8V. Bye Timm

Hi You have 200ah. Yes What is your daily use? It differs from day to day. Sometimes 1-3amps a few minutes Sometimes 1-3amps 30minutes Sometimes 15amps a few minutes What is your constant draw? 400ma I can´t increase the solarpower, no more place. Bye Timm

Hi you mean the Battery must fully charged every week? No that can´t be. My Battery where charged with the grid charger, if it goes below 50%, but from my last post to yesterday it goes from 100% to 80% like i wrote yesterday, why i should charge my battery to 100% if the SOC is by 85% or so...

Hi the Bluetooth show one current status. -1.6A shows that 1.6amps going out, and 1.6A means that 1.6amps going in. Right now it shows 81% with 12.9V, what you think, is that a correct behavior? No, it has no calibration button. Bye Timm

Hi Yes there is BT and it shows amps, but right now only outgoing, no ingoing aamps. Cloudy/foggy, no sun since weeks. Right now i got 90% SOC. I got my Lamps on 12V and my hole shack.(Amateurradio). I think in the next few weeks, there is no charging with PV, only discharge. My...

Hi what you mean with occasionly, one time a month, or every 2 weeks? Or every cycle? Thanks Timm

Hi, so yesterday i got 14.4V with my AGM Charger. On 14.4V it goes to 0amps current, so it was no problem to charge with the AGM Charger. Also the SOC shows me 100%, so i hope is fixed now, but i´m still on it. Bye Timm

Hi Yes i got a 10amp Banner AGM Charger. So i charge now with Landline. Let´s see. Bye Timm

Hi, now its 77% with 11.9V. The Voltage is right, the % is wrong, because on my ICOM IC-7900 the Powerbar is in the red zone right now. Bye Timm

Hi, Wattstunde. https://solarkontor.de/WATTSTUNDEZ-Lithium-200Ah-LiFePO4-Batterie-LIX200 Thanks Timm

Hi Sojourner1 The Manufacturer said, i should set the VE MPPT 100|30 to 14.4V. OK, that could be the reason, because my Battery is charged from a 330WP PV, but right now we don´t have sun since more weeks. We got here cloudy or foggy, so no Voltage above 13.5V. Only one time the Charger was in...

Hi, I don´t know that the Info from the build in BMS. I see this information with my Tablet over BT. Bye Timm

Hi, thanks. At the beginning for a few weeks, between 78 and 99% the Voltage stays everytime between 13.1 and 13.5. For a few days the SOC goes down to 64% and since then the voltage stays down. Bye Timm

Hi I got a 200Ah LifePO4 Battery and on 70% Capacity the Battery has 12.7V, is that OK? My PV-System charged it to 81% and it shows 13.1 V, and a few hours later 12.9V with 80%. I got a small load on it. Bye Timm

Hi, Thanks for the detailed information. What would matter if the 2 Panels with about 100Wp i set in serie and the 41 in parallel mode to them? So one array has 46V and the other 41V. The Voltage difference is not high, so maybe it wold work. Thanks Timm

Hi all PV-Friends. I got right now 3 different PV-Panels. 1x 23V Voc 90 Watts 1x 23V Voc 100 Watts 1x 23V Voc 130 Watts Those 3 are in parallel Mode, so its no Problem. I saw today a PV-Panel with 41V Voc 325 Watts for a good price...

Hi brassmonkey The App is this from Wattstunde/Life Blue. But this evening when i was coming home, i´ll see that my VE MPPT charger was also in the Absorption Mode for 2h, and the Battery is 99% charged. Why this time and not before? My Battery is still in the first cycle. Thanks Timm

Hi The App from my LifePO4 Battery shows 100% but the VE MPPT 100|30 stands at Bulk and its set to Position 7(LifePO4). The Voltage is 13.5. Is that quiet right, or did i make something wrong? Bye Timm

Hi I found out that the Wattstunde Batteries are the same like Life Blue Batteries, also the App is the same. I bought the LIX200. Bye Timm

Hi First i thought so, but in EU the BB costs about 1500$. Bye Timm

Hi Gnubie Thanks for the Infos you gave me. I have in mention also the Wattstunde, the 100Ah costs about 990€ and the 200Ah about 1800€. It has also BT build in also it comes with an BMS, but this BMS kills the Load at 8V, this it seems be to low for damaging it. Bye Timm

Hi Has anybody this Battery in use and can say it is worth of it? What is the big diffrence? The VE Distributor told me in the 12V 160Ah Version for about 2200€ there is no BMS build in, only for Balancing the cells is build in. I got a VE MPPT 100|30 to run. Bye Timm

Hi. I´m, interesstet in the Batterys from Wattstunde, but i don´t know if they good. They have BT build in to see the SOC and a BMS. https://solarkontor.de/Lithium-Batterien-LiFePO4 Bye Timm