# Smart Battery Sense Voltage for Charging **URL:** \ **Category:** DIY\ **Tags:** lithium\_battery, diy\ **Created:** [14 April 2026 19:24 UTC](https://community.victronenergy.com/t/smart-battery-sense-voltage-for-charging/56516 "2026-04-14T19:24:19Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![fupatroopa](https://avatars.discourse-cdn.com/v4/letter/f/71e660/32.png) [@fupatroopa](https://community.victronenergy.com/u/fupatroopa)\ **Post date:** [14 April 2026 19:24 UTC](https://community.victronenergy.com/t/smart-battery-sense-voltage-for-charging/56516/1 "2026-04-14T19:24:19Z")
I added a Victron Smart Battery Sense since my Victron MPPT 100/20 charge controller is ~20 ft away from my Li-ion battery. Anyway, I expected the charge controller to use the Battery Sense voltage when charging, but I just noticed the charge controller switched to absorption based off the higher charge controller voltage. I thought the battery sense voltage was supposed to be used instead? Is there any way to change this? ---
**Author:** ![Justin](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/justin/32/24_2.png) [@Justin](https://community.victronenergy.com/u/Justin)\ **Post date:** [14 April 2026 19:32 UTC](https://community.victronenergy.com/t/smart-battery-sense-voltage-for-charging/56516/2 "2026-04-14T19:32:28Z")
Did you then join them in a VE.Smart Network? That’s necessary. If not, then do so: [6. Step-by-step instructions](https://www.victronenergy.com/media/pg/VE.Smart_Networking/en/step-by-step-instructions.html) If you did already and it’s not working, check that the network is actively functioning; 20’ is a ways for BLE to communicate especially if there are any obstructions between the two components, and it’s possible that the bluetooth connection isn’t stable enough to be consistently used. ---
**Author:** ![fupatroopa](https://avatars.discourse-cdn.com/v4/letter/f/71e660/32.png) [@fupatroopa](https://community.victronenergy.com/u/fupatroopa)\ **Post date:** [14 April 2026 20:04 UTC](https://community.victronenergy.com/t/smart-battery-sense-voltage-for-charging/56516/3 "2026-04-14T20:04:59Z")
Yes, I had the network created and both devices joined. My DIY battery is in a metal box and the battery sense showed 1-2 signal bars per the Smart Networking settings page. I took the battery sense out of the box and now it shows 2-3 bars and the voltages shown on the app device list for the controller and battery sense are now tracking closer. So I guess the connection wasn’t stable enough before like you said. Thanks for your help ---
**Author:** ![system](https://europe1.discourse-cdn.com/victron/original/1X/21a9a7b5db7c6339715f993568736a7053199995.png) [@system](https://community.victronenergy.com/u/system)\ **Post date:** [28 April 2026 20:05 UTC](https://community.victronenergy.com/t/smart-battery-sense-voltage-for-charging/56516/4 "2026-04-28T20:05:43Z")
Closed on 28 April 2026 20:05 UTC This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.