# SOC Recalibration Event **URL:** \ **Category:** DIY\ **Tags:** freedom\_won, cerbo\_gx, offgrid, diy\ **Created:** [17 May 2026 07:42 UTC](https://community.victronenergy.com/t/soc-recalibration-event/58066 "2026-05-17T07:42:48Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![STosen](https://avatars.discourse-cdn.com/v4/letter/s/e95f7d/32.png) [@STosen](https://community.victronenergy.com/u/STosen)\ **Post date:** [17 May 2026 07:42 UTC](https://community.victronenergy.com/t/soc-recalibration-event/58066/1 "2026-05-17T07:42:48Z")
I am “Gog” - Going off Grid and am monitoring my upgraded battery - Freedom Won 40/32 800Ah My Solar Solution: 1 x Victron Energy Quattro 48/8000 (Grid Tied – Single Phase) 1 x Cerbo GX with ESS for Self-Consumption 1 x Victron Energy RS450/100 Solar Charge Controller / MPPT 1 x 48V Freedom Won 40/32 Lithium-Ion battery 1 x Yamaha EF6600 Generator with 2 x 16A Out lets - not in use at the moment. 8 x 345W Sunpower CPV Panels, S -25.88, Azimuth: North, Tilt Angle: 30° The ESS Assistant will be removed when I disconnect from the grid. Right now I am running in inverter mode. On Thursday 14/05/2026 06:15, the SOC was 76%. I then created several loads baking some Panini, running a pressure cooker, vacuum cleaner and induction stove. At 14/05/2026 17:48, the SOC was 68%. 15/05/2026 06:15 - SOC = 49% MPPT Active for the first time on this day. 15/05/2026 17:47 - SOC = 58% MPPT - Off 16/05/2026 06:17 which the MPPT State became active, the SOC was 39%. By 12:54, the SOC was 51%. By 13:06, the SOC was 100%. Below is an extract from the logs: 51 - 100% SOC from 12:54 to 13:06. ![image](https://europe1.discourse-cdn.com/victron/original/3X/d/d/dd114d80bfc09496935f3b22c598eefc1329d99d.png) ![image](https://europe1.discourse-cdn.com/victron/original/3X/9/4/940491e3c2020f540e307b185ab9b2de54614d41.png) Can anyone allude to what has happened here? How often will this occur? ---
**Author:** ![M\_Lange](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/m_lange/32/16_2.png) [@M\_Lange](https://community.victronenergy.com/u/M_Lange)\ **Post date:** [17 May 2026 08:32 UTC](https://community.victronenergy.com/t/soc-recalibration-event/58066/2 "2026-05-17T08:32:05Z")
Where is the SOC coming from? From the battery or a BMV/SmartShunt? What device is selected as battery monitor in the settings of the GX device? ---
**Author:** ![STosen](https://avatars.discourse-cdn.com/v4/letter/s/e95f7d/32.png) [@STosen](https://community.victronenergy.com/u/STosen)\ **Post date:** [17 May 2026 08:35 UTC](https://community.victronenergy.com/t/soc-recalibration-event/58066/3 "2026-05-17T08:35:14Z")
SOC comes from the battery BMS. ---
**Author:** ![lxonline](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/lxonline/32/25567_2.png) [@lxonline](https://community.victronenergy.com/u/lxonline)\ **Post date:** [17 May 2026 08:44 UTC](https://community.victronenergy.com/t/soc-recalibration-event/58066/4 "2026-05-17T08:44:38Z")
Its pretty typical for the way Freedom wons behave and they way they trigger 100%. It is something i have seen a few times. And the firmware version it is on. If you go the vrm advanced, check the voltage ther eis a trigger leve and the way the current drops off - that is the trigger for the 100% jump. Kind of how a badly set up victron bmv or shunt works. The ccl and cvl limit and voltage graph are useful. ---
**Author:** ![nickdb](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/nickdb/32/51440_2.png) [@nickdb](https://community.victronenergy.com/u/nickdb)\ **Post date:** [17 May 2026 08:51 UTC](https://community.victronenergy.com/t/soc-recalibration-event/58066/5 "2026-05-17T08:51:05Z")
Make sure it is configured in both system settings and DVCC. If it is correct, open a support call with them. They have had issues in the past with current meters and firmware. They can easily adjust the BMS parameters if it is synchronising incorrectly. I have not see it leap that much before, typically from the 90’s particularly if it has been charged slowly or not fully charged with any regularity. Hopefully this is a lite 2 which has remote access built in. ---
**Author:** ![STosen](https://avatars.discourse-cdn.com/v4/letter/s/e95f7d/32.png) [@STosen](https://community.victronenergy.com/u/STosen)\ **Post date:** [20 May 2026 09:40 UTC](https://community.victronenergy.com/t/soc-recalibration-event/58066/6 "2026-05-20T09:40:01Z")
Is this what you are looking for? ![image](https://europe1.discourse-cdn.com/victron/original/3X/d/b/db12989bdb53d814262e840d981d613c5c21c1dc.png) ---
**Author:** ![STosen](https://avatars.discourse-cdn.com/v4/letter/s/e95f7d/32.png) [@STosen](https://community.victronenergy.com/u/STosen)\ **Post date:** [20 May 2026 09:41 UTC](https://community.victronenergy.com/t/soc-recalibration-event/58066/7 "2026-05-20T09:41:04Z")
I do not believe it is a Lite 2 as the only port avialable is the printer port which I can use for Orion JR 2.