# Charging battery at highest price - why?

**URL:** <https://community.victronenergy.com/t/charging-battery-at-highest-price-why/14194>\
**Category:** DESS\
**Tags:** dess, beginner, vrm\
**Created:** [4 December 2024 19:28 UTC](https://community.victronenergy.com/t/charging-battery-at-highest-price-why/14194 "2024-12-04T19:28:29Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![MSchlenstedt](https://avatars.discourse-cdn.com/v4/letter/m/ea666f/32.png) [@MSchlenstedt](https://community.victronenergy.com/u/MSchlenstedt)\
**Post date:** [4 December 2024 19:28 UTC](https://community.victronenergy.com/t/charging-battery-at-highest-price-why/14194/1 "2024-12-04T19:28:29Z")

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I really like the idea of DESS. I run it just a few days now and have some funny behaviour. Today we had quite high prices and the battery was nearly 90% from the previous days.

When checking this evening what was happening over the day, I saw some strange behavoiur:

1. Battery was uncharged, then charged again?
2. Battery was charged at highest price of the day
3. (marked this by mistake)
4. Battery was uncharged, but also energy was taken from grid - although battery was full enough and also price was high enough

 ![image](https://europe1.discourse-cdn.com/victron/original/2X/a/ad9b6951ef56134153c1b62bf985d870e420c582.png)