# Problème de charge batterie lithium avec un smart solar 75/15

**URL:** <https://community.victronenergy.com/t/probleme-de-charge-batterie-lithium-avec-un-smart-solar-75-15/46379>\
**Category:** Q&A and troubleshooting\
**Tags:** victronconnect, mppt\_controllers, diy\
**Created:** [2 October 2025 07:45 UTC](https://community.victronenergy.com/t/probleme-de-charge-batterie-lithium-avec-un-smart-solar-75-15/46379 "2025-10-02T07:45:28Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Babz](https://avatars.discourse-cdn.com/v4/letter/b/f9ae1b/32.png) [@Babz](https://community.victronenergy.com/u/Babz)\
**Post date:** [2 October 2025 07:45 UTC](https://community.victronenergy.com/t/probleme-de-charge-batterie-lithium-avec-un-smart-solar-75-15/46379/1 "2025-10-02T07:45:28Z")

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Ce fut le temps venu de remplacer mes batteries plomb ,2x12v 100A par une lithium 25.6v 100A,j’ai tout paramétré avec victron connect comme il se doit,le chargeur bloque la charge à 27.35v alors que la valeur d’absorption est de 28.4 ,par ce fait ça ne charge pas à 100% ,reste en bulk et ne passe jamais en float.

Par ailleurs,les paramètres batterie lithium ne sont pas éditables car grisés.

Qu’aurais je mal fait ?

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**Author:** ![MikeD](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/miked/32/1522_2.png) [@MikeD](https://community.victronenergy.com/u/MikeD)\
**Post date:** [3 October 2025 22:24 UTC](https://community.victronenergy.com/t/probleme-de-charge-batterie-lithium-avec-un-smart-solar-75-15/46379/2 "2025-10-03T22:24:06Z")

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Do you have a connected BMS with the battery?

If the BMS is controlling the charge, then if one cell is high, then this can block the charge at a lower voltage until the battery balances.

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**Author:** ![Babz](https://avatars.discourse-cdn.com/v4/letter/b/f9ae1b/32.png) [@Babz](https://community.victronenergy.com/u/Babz)\
**Post date:** [4 October 2025 09:26 UTC](https://community.victronenergy.com/t/probleme-de-charge-batterie-lithium-avec-un-smart-solar-75-15/46379/3 "2025-10-04T09:26:53Z")

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No connected bms in the brand new powmr 25.6v 100Ah

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**Author:** ![MikeD](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/miked/32/1522_2.png) [@MikeD](https://community.victronenergy.com/u/MikeD)\
**Post date:** [22 February 2026 23:28 UTC](https://community.victronenergy.com/t/probleme-de-charge-batterie-lithium-avec-un-smart-solar-75-15/46379/4 "2026-02-22T23:28:04Z")

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You may need to enable advanced mode or select a custom battery type in the MPPT setup.