# Why is my DEss not charging my battery **URL:** \ **Category:** DESS\ **Tags:** dess, ess\ **Created:** [23 October 2025 09:54 UTC](https://community.victronenergy.com/t/why-is-my-dess-not-charging-my-battery/47513 "2025-10-23T09:54:17Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![Leon-Bork](https://avatars.discourse-cdn.com/v4/letter/l/a698b9/32.png) [@Leon-Bork](https://community.victronenergy.com/u/Leon-Bork)\ **Post date:** [23 October 2025 09:54 UTC](https://community.victronenergy.com/t/why-is-my-dess-not-charging-my-battery/47513/1 "2025-10-23T09:54:17Z")
Hello, I started to work with the dynamic Ess for a couple of days now, today is the second day it is Running but so far i see no improvement in inteligent charging. It isn’t schedueling any charging times from the grid or predict. And the price is gonna be cheap. Plus the battery isn’t fully charged. ![Übersicht](https://europe1.discourse-cdn.com/victron/original/3X/b/f/bf2a4896249ec4b32eb094d2824dfd00678babf4.png) ![Ess laden](https://europe1.discourse-cdn.com/victron/original/3X/c/e/ce242df54e35b62632b2f4182b0c1e1892465c73.png) Does any one know this problem or can help me with it. I am stuck here. Or do i have to be patient and wait for the DEss to Gather more Information before it functions right. I thank evrey on that helps me. PS: I am sorry for my bad gramatic and writing😅 ---
**Author:** ![Leon-Bork](https://avatars.discourse-cdn.com/v4/letter/l/a698b9/32.png) [@Leon-Bork](https://community.victronenergy.com/u/Leon-Bork)\ **Post date:** [23 October 2025 09:55 UTC](https://community.victronenergy.com/t/why-is-my-dess-not-charging-my-battery/47513/2 "2025-10-23T09:55:14Z")
Ohh and It is in Green mode. ---
**Author:** ![BjoernK](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/bjoernk/32/89_2.png) [@BjoernK](https://community.victronenergy.com/u/BjoernK)\ **Post date:** [23 October 2025 10:06 UTC](https://community.victronenergy.com/t/why-is-my-dess-not-charging-my-battery/47513/3 "2025-10-23T10:06:22Z")
@Leon With green mode, self-consumption is primarily goal. So it will buy from grid only, if this is less expensive including system efficiency compared to using grid directly. You buy price does not show much differences between 18:00 and 19:00. Default efficiency is 80%. It can be altered via dbus according to some posts in this bullet board. ---
**Author:** ![Leon-Bork](https://avatars.discourse-cdn.com/v4/letter/l/a698b9/32.png) [@Leon-Bork](https://community.victronenergy.com/u/Leon-Bork)\ **Post date:** [23 October 2025 11:06 UTC](https://community.victronenergy.com/t/why-is-my-dess-not-charging-my-battery/47513/4 "2025-10-23T11:06:10Z")
where do i find Infos about that dbus/settings for it ---
**Author:** ![Leon-Bork](https://avatars.discourse-cdn.com/v4/letter/l/a698b9/32.png) [@Leon-Bork](https://community.victronenergy.com/u/Leon-Bork)\ **Post date:** [23 October 2025 11:06 UTC](https://community.victronenergy.com/t/why-is-my-dess-not-charging-my-battery/47513/5 "2025-10-23T11:06:33Z")
and thanks for the quik answer ---
**Author:** ![Leon-Bork](https://avatars.discourse-cdn.com/v4/letter/l/a698b9/32.png) [@Leon-Bork](https://community.victronenergy.com/u/Leon-Bork)\ **Post date:** [23 October 2025 11:56 UTC](https://community.victronenergy.com/t/why-is-my-dess-not-charging-my-battery/47513/6 "2025-10-23T11:56:57Z")
hello, The prediction for tommorrow is finished and it doesnt make sense ![prognosse für morgen](https://europe1.discourse-cdn.com/victron/original/3X/8/6/86434a31bb6659e6781ac6c43c39ef9b1e4aef36.png) I dont understand why the battery isnt gonna be charged with 1 cent price and the battery is gonna be empty thanks for the help. ---
**Author:** ![Leon-Bork](https://avatars.discourse-cdn.com/v4/letter/l/a698b9/32.png) [@Leon-Bork](https://community.victronenergy.com/u/Leon-Bork)\ **Post date:** [23 October 2025 13:32 UTC](https://community.victronenergy.com/t/why-is-my-dess-not-charging-my-battery/47513/7 "2025-10-23T13:32:12Z")
What can i do? ---
**Author:** ![Sarowe1990](https://avatars.discourse-cdn.com/v4/letter/s/cab0a1/32.png) [@Sarowe1990](https://community.victronenergy.com/u/Sarowe1990)\ **Post date:** [23 October 2025 17:33 UTC](https://community.victronenergy.com/t/why-is-my-dess-not-charging-my-battery/47513/8 "2025-10-23T17:33:00Z")
Please show the configuration of your DESS ---
**Author:** ![grua](https://avatars.discourse-cdn.com/v4/letter/g/ec9cab/32.png) [@grua](https://community.victronenergy.com/u/grua)\ **Post date:** [23 October 2025 18:40 UTC](https://community.victronenergy.com/t/why-is-my-dess-not-charging-my-battery/47513/9 "2025-10-23T18:40:02Z")
you also always should show the forecast graph, e.g.: ![image](https://europe1.discourse-cdn.com/victron/original/3X/9/e/9e949c03550c318e1ce3d64eca76df4c40a05b26.png) ---
**Author:** ![BjoernK](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/bjoernk/32/89_2.png) [@BjoernK](https://community.victronenergy.com/u/BjoernK)\ **Post date:** [23 October 2025 22:01 UTC](https://community.victronenergy.com/t/why-is-my-dess-not-charging-my-battery/47513/10 "2025-10-23T22:01:48Z")
> [@Is system efficiency same as roundtrip efficiency](https://community.victronenergy.com/t/is-system-efficiency-same-as-roundtrip-efficiency/12740): > > From the [dynamic ess manual](https://www.victronenergy.com/live/drafts:dynamic_ess) it is not clear to me what is meant by system efficiency. From the manual: ### Q: What about the efficiency losses of the battery? Dynamic ESS on VRM takes battery losses into account. The system looks at the dbus service com.victronenergy.settings, path Settings/DynamicEss/SystemEfficiency. On my system the grid-\>battery losses are 10% and the battery-\> grid losses are also 10%. Making a total roundtrip efficiency of 80%. If I look with dubs-spy at the system ef… „ From the manual: ### Q: What about the efficiency losses of the battery? Dynamic ESS on VRM takes battery losses into account. The system looks at the dbus service com.victronenergy.settings, path Settings/DynamicEss/SystemEfficiency.“ ---
**Author:** ![Pim57](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/pim57/32/9058_2.png) [@Pim57](https://community.victronenergy.com/u/Pim57)\ **Post date:** [24 October 2025 06:54 UTC](https://community.victronenergy.com/t/why-is-my-dess-not-charging-my-battery/47513/11 "2025-10-24T06:54:00Z")
Default efficiency is 90%. Either multiply the buy price with 1.1 or the sell price times 0.93