# \[APP\]\[Pro\] Marstek Energy Storage **URL:** \ **Category:** Apps\ **Tags:** app, homey-pro\ **Created:** [September 13, 2025, 10:20pm UTC](https://community.homey.app/t/app-pro-marstek-energy-storage/142928 "2025-09-13T22:20:09Z")\ **Posts on this page:** 20\ **Page:** 2
**Author:** ![Stijn\_Van\_Heeswijk](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/stijn_van_heeswijk/32/73136_2.png) [@Stijn\_Van\_Heeswijk](https://community.homey.app/u/Stijn_Van_Heeswijk)\ **Post date:** [September 16, 2025, 11:12am UTC](https://community.homey.app/t/app-pro-marstek-energy-storage/142928/22 "2025-09-16T11:12:51Z")
yes i did ---
**Author:** ![Stijn\_vdh](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/stijn_vdh/32/17439_2.png) [@Stijn\_vdh](https://community.homey.app/u/Stijn_vdh)\ **Post date:** [September 16, 2025, 11:31am UTC](https://community.homey.app/t/app-pro-marstek-energy-storage/142928/23 "2025-09-16T11:31:27Z")
> [@Kaoh](#): > > EW11 I have the V2… just bought the modbus on amazon, will let you know how it goes 🙂 ---
**Author:** ![Kaoh](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/kaoh/32/9283_2.png) [@Kaoh](https://community.homey.app/u/Kaoh)\ **Post date:** [September 16, 2025, 1:04pm UTC](https://community.homey.app/t/app-pro-marstek-energy-storage/142928/24 "2025-09-16T13:04:16Z")
Then send a new diagnostic report please ---
**Author:** ![Kaoh](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/kaoh/32/9283_2.png) [@Kaoh](https://community.homey.app/u/Kaoh)\ **Post date:** [September 16, 2025, 1:04pm UTC](https://community.homey.app/t/app-pro-marstek-energy-storage/142928/25 "2025-09-16T13:04:40Z")
Cool, same as mine so should work. ---
**Author:** ![Stijn\_Van\_Heeswijk](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/stijn_van_heeswijk/32/73136_2.png) [@Stijn\_Van\_Heeswijk](https://community.homey.app/u/Stijn_Van_Heeswijk)\ **Post date:** [September 16, 2025, 2:17pm UTC](https://community.homey.app/t/app-pro-marstek-energy-storage/142928/26 "2025-09-16T14:17:36Z")
81f764fb-2317-4b29-abe7-0e64a7e39bc5 ---
**Author:** ![Peter\_Kawa](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_kawa/32/173848_2.png) [@Peter\_Kawa](https://community.homey.app/u/Peter_Kawa)\ **Post date:** [September 16, 2025, 2:25pm UTC](https://community.homey.app/t/app-pro-marstek-energy-storage/142928/27 "2025-09-16T14:25:28Z")
![Screenshot_20250916_162356_Chrome](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/c/0/c0123e76d0699bc4baa039e7f3085f2a2ec22792.jpeg) This is an alibaba dns server. Maybe you’d better enter the IP of your router, else 8.8.8.8 f.i. ---
**Author:** ![Stijn\_Van\_Heeswijk](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/stijn_van_heeswijk/32/73136_2.png) [@Stijn\_Van\_Heeswijk](https://community.homey.app/u/Stijn_Van_Heeswijk)\ **Post date:** [September 16, 2025, 2:35pm UTC](https://community.homey.app/t/app-pro-marstek-energy-storage/142928/28 "2025-09-16T14:35:44Z")
i changed it. thanks! Don’t know mutch about this. ---
**Author:** ![Kaoh](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/kaoh/32/9283_2.png) [@Kaoh](https://community.homey.app/u/Kaoh)\ **Post date:** [September 16, 2025, 8:54pm UTC](https://community.homey.app/t/app-pro-marstek-energy-storage/142928/29 "2025-09-16T20:54:56Z")
can you share a screenshot from your communication settings page? IN the log I can deduct your IP and port seem to be setup in line with your screenshot earlier. But it is unable to connect. So my app is just getting connection timeouts to that IP and port, so the EW11 itself is unreachable by the Homey the app is running on. ---
**Author:** ![Stijn\_Van\_Heeswijk](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/stijn_van_heeswijk/32/73136_2.png) [@Stijn\_Van\_Heeswijk](https://community.homey.app/u/Stijn_Van_Heeswijk)\ **Post date:** [September 16, 2025, 9:08pm UTC](https://community.homey.app/t/app-pro-marstek-energy-storage/142928/30 "2025-09-16T21:08:40Z")
I don’t see anything wrong. I hope you do! ![19928](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/d/1/d124391c1a3422e5679d65fb553f7743d81add58.jpeg) ---
**Author:** ![Stijn\_Van\_Heeswijk](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/stijn_van_heeswijk/32/73136_2.png) [@Stijn\_Van\_Heeswijk](https://community.homey.app/u/Stijn_Van_Heeswijk)\ **Post date:** [September 16, 2025, 9:10pm UTC](https://community.homey.app/t/app-pro-marstek-energy-storage/142928/31 "2025-09-16T21:10:46Z")
I do think that’s the problem. I can only reach the ew11 when im on the ew11 ap ---
**Author:** ![Kaoh](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/kaoh/32/9283_2.png) [@Kaoh](https://community.homey.app/u/Kaoh)\ **Post date:** [September 16, 2025, 9:25pm UTC](https://community.homey.app/t/app-pro-marstek-energy-storage/142928/32 "2025-09-16T21:25:40Z")
Then your wifi setup is not correct, check those steps again in the forum, also when done reboot the ew11. So it includes setting the ew11 to the right AP info from your network, then reboot ---
**Author:** ![Dex](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/dex/32/122406_2.png) [@Dex](https://community.homey.app/u/Dex)\ **Post date:** [September 17, 2025, 6:07am UTC](https://community.homey.app/t/app-pro-marstek-energy-storage/142928/33 "2025-09-17T06:07:41Z")
First of all, great work! I have six Marstek batteries connected with two per phase. I’ve set up EVCC to control the batteries, and it works great. However, there is one issue: when EVCC allows them to charge at lower prices, there is no load balancing. As a result, all batteries are charging at 5,000 watts per phase, which is causing an overload. Is there a way for this app to monitor my grid and balance the six batteries to prevent overload? I’m unsure about the commands EVCC sends to Modbus and whether two systems can use the same Modbus. The main reason for using EVCC is to avoid draining from my batteries while charging my EV. All batteries and the EV loader (Peblar) are connected with HomeWizard KWH meters, and also have the homey p1 meter. Thanks in advance, Derck ---
**Author:** ![Stijn\_Van\_Heeswijk](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/stijn_van_heeswijk/32/73136_2.png) [@Stijn\_Van\_Heeswijk](https://community.homey.app/u/Stijn_Van_Heeswijk)\ **Post date:** [September 17, 2025, 8:57am UTC](https://community.homey.app/t/app-pro-marstek-energy-storage/142928/34 "2025-09-17T08:57:29Z")
Started from scratch again and now the Marstek is online in Homey. Everything looks good. Only the Netuitvoer stroom isn’t right. ![19946](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/b/c/bc365767da6604dc3fccf58ec95577413c2c8cb0.jpeg) You told me not t push any buttons yet, so i won’t ! ---
**Author:** ![Kaoh](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/kaoh/32/9283_2.png) [@Kaoh](https://community.homey.app/u/Kaoh)\ **Post date:** [September 17, 2025, 12:41pm UTC](https://community.homey.app/t/app-pro-marstek-energy-storage/142928/35 "2025-09-17T12:41:41Z")
Good question. The force mode charge you can set the force power to limit how much. So the evcc should be able to do the same, maybe they only send the force charge without seeing the max power so you can use my app to limit it. Multiple modbus clients should not be a problem ---
**Author:** ![Kaoh](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/kaoh/32/9283_2.png) [@Kaoh](https://community.homey.app/u/Kaoh)\ **Post date:** [September 17, 2025, 12:42pm UTC](https://community.homey.app/t/app-pro-marstek-energy-storage/142928/36 "2025-09-17T12:42:28Z")
Great so v3 registers are also the same next to the new ones. I’ll check the grid power one, see if that’s a big for me also ---
**Author:** ![Stijn\_Van\_Heeswijk](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/stijn_van_heeswijk/32/73136_2.png) [@Stijn\_Van\_Heeswijk](https://community.homey.app/u/Stijn_Van_Heeswijk)\ **Post date:** [September 17, 2025, 12:57pm UTC](https://community.homey.app/t/app-pro-marstek-energy-storage/142928/37 "2025-09-17T12:57:28Z")
What is the worst that can happen when i try-out the settings? ---
**Author:** ![Dex](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/dex/32/122406_2.png) [@Dex](https://community.homey.app/u/Dex)\ **Post date:** [September 17, 2025, 2:28pm UTC](https://community.homey.app/t/app-pro-marstek-energy-storage/142928/38 "2025-09-17T14:28:53Z")
Do I need to create a load balancer in Homey, or can I configure it in your app? EVCC doesn’t load balance batteries; it only supports EV chargers. ---
**Author:** ![Kaoh](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/kaoh/32/9283_2.png) [@Kaoh](https://community.homey.app/u/Kaoh)\ **Post date:** [September 17, 2025, 2:50pm UTC](https://community.homey.app/t/app-pro-marstek-energy-storage/142928/39 "2025-09-17T14:50:58Z")
I think it’s safe, potentially it’s going to reboot or factory reset, but most likely it will work out give an error ---
**Author:** ![Kaoh](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/kaoh/32/9283_2.png) [@Kaoh](https://community.homey.app/u/Kaoh)\ **Post date:** [September 17, 2025, 2:51pm UTC](https://community.homey.app/t/app-pro-marstek-energy-storage/142928/40 "2025-09-17T14:51:59Z")
Create one using flows, if fase goes above and batteries are charging, reduce force load power setting ---
**Author:** ![Stijn\_Van\_Heeswijk](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/stijn_van_heeswijk/32/73136_2.png) [@Stijn\_Van\_Heeswijk](https://community.homey.app/u/Stijn_Van_Heeswijk)\ **Post date:** [September 17, 2025, 3:00pm UTC](https://community.homey.app/t/app-pro-marstek-energy-storage/142928/41 "2025-09-17T15:00:06Z")
Back-up power on/off works fine. The rest doesn’t work. [Previous page](https://community.homey.app/t/app-pro-marstek-energy-storage/142928.md?page=1) [Next page](https://community.homey.app/t/app-pro-marstek-energy-storage/142928.md?page=3)