# MPPT 50?100 settings **URL:** \ **Category:** DIY\ **Tags:** beginner, mppt\_controllers\ **Created:** [5 March 2026 03:32 UTC](https://community.victronenergy.com/t/mppt-50-100-settings/54395 "2026-03-05T03:32:30Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Edski](https://avatars.discourse-cdn.com/v4/letter/e/97f17d/32.png) [@Edski](https://community.victronenergy.com/u/Edski)\ **Post date:** [5 March 2026 03:32 UTC](https://community.victronenergy.com/t/mppt-50-100-settings/54395/1 "2026-03-05T03:32:30Z")
I have set up my system with three 50/100 charge controllers all linked, they are all talking to each other fine and charging the batteries to 100%, and then go to float. They then stay in float until I either shut off the isolators to the panels and then turn them back on, or, if I don’t isolate them, until the sun comes back up. ![20250306_185045](https://europe1.discourse-cdn.com/victron/original/3X/1/7/17ee529832b849dda61addda182f70cfb11880ca.jpeg) ![20250306_185110](https://europe1.discourse-cdn.com/victron/original/3X/4/a/4a267d35675cd32cbff96cfc9761d91e30c44d11.jpeg) ![20250306_185146](https://europe1.discourse-cdn.com/victron/original/3X/7/3/738923025b228539c8bb3b77422112d182c40d80.jpeg) ![20250306_185205](https://europe1.discourse-cdn.com/victron/original/3X/3/f/3f2eafac5f6a45c6043a5cdc99176d95c8b74c6b.jpeg) ![20250306_185454](https://europe1.discourse-cdn.com/victron/original/3X/2/6/26153f92dd4dda44e7a6aec82a9ccd8fcb956373.jpeg) ---
**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:** [5 March 2026 17:03 UTC](https://community.victronenergy.com/t/mppt-50-100-settings/54395/2 "2026-03-05T17:03:56Z")
Did you have a question about your system? ---
**Author:** ![chrigu](https://avatars.discourse-cdn.com/v4/letter/c/ba9def/32.png) [@chrigu](https://community.victronenergy.com/u/chrigu)\ **Post date:** [5 March 2026 17:13 UTC](https://community.victronenergy.com/t/mppt-50-100-settings/54395/3 "2026-03-05T17:13:12Z")
> [@Edski](#): > > ![20250306_185110](https://europe1.discourse-cdn.com/victron/original/3X/4/a/4a267d35675cd32cbff96cfc9761d91e30c44d11.jpeg) Charged voltage should be 14.2V since absorption is set to 14.4V. Charge efficiency 100% might be a bit overconfident, no battery is perfect. For LFP it would be 99% as standard value. I hope that youve also joined the shunt into the VE.smart network? ---
**Author:** ![Edski](https://avatars.discourse-cdn.com/v4/letter/e/97f17d/32.png) [@Edski](https://community.victronenergy.com/u/Edski)\ **Post date:** [6 March 2026 00:59 UTC](https://community.victronenergy.com/t/mppt-50-100-settings/54395/4 "2026-03-06T00:59:56Z")
Thank you! I have reset the parameters on the BMV for the charge voltage. If the shunt is connected to the BMV, my system was installed before I owned the boat, then the three 100/50s and the BMV are on the same network. Looking up the smart shunt, I believe I have an older one. All set I will see how I go. Thank you for your help ![PXL_20260306_003757315](https://europe1.discourse-cdn.com/victron/original/3X/d/1/d1552eb550e0a4dec2d9ca3495d8ea8945e34889.jpeg) ---
**Author:** ![Edski](https://avatars.discourse-cdn.com/v4/letter/e/97f17d/32.png) [@Edski](https://community.victronenergy.com/u/Edski)\ **Post date:** [6 March 2026 09:15 UTC](https://community.victronenergy.com/t/mppt-50-100-settings/54395/5 "2026-03-06T09:15:38Z")
Ok the problem still exists, when I am plugged into shore power, the charger keeps the batteries at 100%. When on the MPPT controllers, they will charge to 100% the go to Float. I haven’t seen them in Absorption at all. After going to float, they never return to a state of charging on their own, as such I can be 20% down when I lose the sun. I can restart them by shutting off the isolators to the solar panels, or they will start by themselves in the morning, but by then I am 20-30% down.