# Smart Shunt Midpoint Alarm Issues **URL:** \ **Category:** Q&A and troubleshooting\ **Tags:** parallel, victron\_community, smartshunt, diy\ **Created:** [11 November 2024 01:36 UTC](https://community.victronenergy.com/t/smart-shunt-midpoint-alarm-issues/11196 "2024-11-11T01:36:19Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![EeebeeE](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/eeebeee/32/7997_2.png) [@EeebeeE](https://community.victronenergy.com/u/EeebeeE)\ **Post date:** [11 November 2024 01:36 UTC](https://community.victronenergy.com/t/smart-shunt-midpoint-alarm-issues/11196/1 "2024-11-11T01:36:19Z")
Just installed my Smart shunt which is connected to two units…a wind generator charge controller and a SmartSolar MPPT 150/35. I had a challenge getting the midpoint to read correctly. The instructions only show two batteries. It does not show more complex setups. I have 6 batteries configured as 3P x 2S. I had thought the midpoint would best be described as the middle positive post (the X) in the parallel line. It’s not. The midpoint needs to be a positive point somewhere in the series other than the parallel connection. (in my case, the circle) Victron, you should add instructions for more that two batteries as well as parallel-series configurations ![image](https://europe1.discourse-cdn.com/victron/original/2X/9/9cdc0d829bccc522baf639a2d34fff676acd1003.png) ---
**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:** [11 November 2024 06:53 UTC](https://community.victronenergy.com/t/smart-shunt-midpoint-alarm-issues/11196/2 "2024-11-11T06:53:06Z")
![166d184583c3e4](https://europe1.discourse-cdn.com/victron/original/2X/5/5b86a748652b2d0028380a33333908cc3e1432ba.png) You basically have this set up except your bus bar is in the center. So you need to connect your line where your circle is, that [is the midpoint. Source.](https://www.victronenergy.com/media/pg/The_Wiring_Unlimited_book/en/battery-bank-wiring.html#UUID-77d5d7b7-6ee7-7c68-6513-19ec03dc8956) Wiring unlimited. ---
**Author:** ![EeebeeE](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/eeebeee/32/7997_2.png) [@EeebeeE](https://community.victronenergy.com/u/EeebeeE)\ **Post date:** [11 November 2024 14:56 UTC](https://community.victronenergy.com/t/smart-shunt-midpoint-alarm-issues/11196/3 "2024-11-11T14:56:24Z")
Thanks for confirming. They should have more complex battery banks in their instructions. A 2P2S diagram would suffice. It would save a little angst. ---
**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:** [11 November 2024 16:54 UTC](https://community.victronenergy.com/t/smart-shunt-midpoint-alarm-issues/11196/4 "2024-11-11T16:54:20Z")
I think if it’s for a custom set up then really it is responsibility of who ever is installing. Not every scenario can be accounted for. The principles are there and you have a handle on it. More complex (suggests professional) should really be handled by someone who has taken the time to know and understand what they are doing. Those kinds of people shouldn’t need to be spoonfed. ---
**Author:** ![EeebeeE](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/eeebeee/32/7997_2.png) [@EeebeeE](https://community.victronenergy.com/u/EeebeeE)\ **Post date:** [11 November 2024 17:16 UTC](https://community.victronenergy.com/t/smart-shunt-midpoint-alarm-issues/11196/5 "2024-11-11T17:16:30Z")
A 2P2S is hardly a “custom setup.” and would be enough to infer that if you had a 3P10S for instance that the midpoint would be in a similar location. One additional diagram to prevent a lot of troubleshooting seems like a reasonable request. After all, how many solar battery banks have just two batteries. Maybe for an RV, but that’s about it. It is a little condescending to withhold information because “you think they should know and they should not be ‘spoonfed.’” Most DIY’ers are learning on the fly. They are pretty smart people, and probably could infer that if this is true for a basic 2P2S that it would most likely be similar for larger banks. Pointing someone in the right direction is hardly “spoonfeeding.” ---
**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:** [11 November 2024 17:28 UTC](https://community.victronenergy.com/t/smart-shunt-midpoint-alarm-issues/11196/6 "2024-11-11T17:28:47Z")
Your setup is literally in the manual and there are a few more ‘basic’ setups shown, so I don’t understand your problem. > **[Manual-Battery-Balancer-EN.pdf](https://www.victronenergy.com/upload/documents/Manual-Battery-Balancer-EN.pdf)** > > 449.59 KB Adding/removing a row of batteries shouldn’t be too hard. ---
**Author:** ![EeebeeE](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/eeebeee/32/7997_2.png) [@EeebeeE](https://community.victronenergy.com/u/EeebeeE)\ **Post date:** [11 November 2024 17:42 UTC](https://community.victronenergy.com/t/smart-shunt-midpoint-alarm-issues/11196/7 "2024-11-11T17:42:25Z")
That document does not come with a SmartShunt, which is just a monitor…not a balancer. This is what comes with the SmartShunt. [https://www.victronenergy.com/upload/documents/Datasheet-SmartShunt-EN.pdf](https://www.victronenergy.com/upload/documents/Datasheet-SmartShunt-EN.pdf) ---
**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:** [11 November 2024 17:47 UTC](https://community.victronenergy.com/t/smart-shunt-midpoint-alarm-issues/11196/8 "2024-11-11T17:47:51Z")
oops, sorry. But here is the manual of the SmartShunt: [https://www.victronenergy.com/media/pg/SmartShunt/en/midpoint-voltage-monitoring.html#UUID-66f079d6-0546-556b-e459-58143f31e8a7](https://www.victronenergy.com/media/pg/SmartShunt/en/midpoint-voltage-monitoring.html#UUID-66f079d6-0546-556b-e459-58143f31e8a7) ---
**Author:** ![EeebeeE](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/eeebeee/32/7997_2.png) [@EeebeeE](https://community.victronenergy.com/u/EeebeeE)\ **Post date:** [11 November 2024 19:18 UTC](https://community.victronenergy.com/t/smart-shunt-midpoint-alarm-issues/11196/9 "2024-11-11T19:18:42Z")
That particular manual was not in the box. I went online to try to find it, but apparently did not do a good enough job. I got it to work. That’s the important thing. ---
**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:** [11 November 2024 19:24 UTC](https://community.victronenergy.com/t/smart-shunt-midpoint-alarm-issues/11196/10 "2024-11-11T19:24:59Z")
In the box is the quick start guide with a QR code to the product page with the manual: ![Screenshot_2024-11-11-20-23-55-06_e2d5b3f32b79de1d45acd1fad96fbb0f](https://europe1.discourse-cdn.com/victron/original/2X/b/b89803c896119c95f3728713646d4e75b89f1fd4.jpeg) ---
**Author:** ![EeebeeE](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/eeebeee/32/7997_2.png) [@EeebeeE](https://community.victronenergy.com/u/EeebeeE)\ **Post date:** [11 November 2024 19:27 UTC](https://community.victronenergy.com/t/smart-shunt-midpoint-alarm-issues/11196/11 "2024-11-11T19:27:44Z")
OK. I think this subject has been sufficiently beaten to death. Mea Culpa. ---
**Author:** ![system](https://europe1.discourse-cdn.com/victron/original/1X/21a9a7b5db7c6339715f993568736a7053199995.png) [@system](https://community.victronenergy.com/u/system)\ **Post date:** [25 November 2024 19:28 UTC](https://community.victronenergy.com/t/smart-shunt-midpoint-alarm-issues/11196/12 "2024-11-25T19:28:04Z")
Closed on 25 November 2024 19:28 UTC This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.