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Has anyone changed the battery in the LEGO Energy Meter? - LEGO Technic, Mindstorms, Model Team and Scale Modeling - Eurobricks Forums
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Lego simple and powered machines (9686) with education pack (2009686) and renewable energy add-on set (9688)
![LEGO Set 9688-1 Renewable Energy Add-On Set (2010 Educational and Dacta > Technic > Supplemental) | Rebrickable - Build with LEGO LEGO Set 9688-1 Renewable Energy Add-On Set (2010 Educational and Dacta > Technic > Supplemental) | Rebrickable - Build with LEGO](https://cdn.rebrickable.com/media/thumbs/sets/9688-1/102426.jpg/1000x800p.jpg)
LEGO Set 9688-1 Renewable Energy Add-On Set (2010 Educational and Dacta > Technic > Supplemental) | Rebrickable - Build with LEGO
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