First Charge / Discharge Cycle

A project log for A 110 kWh Powerbucket

The lead-acid batteries of my off-grid solar system are dead. I will replace them by a 18650 batteries stack housed in a big wooden box.

Michel KuenemannMichel Kuenemann 11/30/2016 at 05:362 Comments

Thanks to the bright and sunny day, the batteries could perform their first charge / discharge cycle yesterday:

A few comments:

The battery behavior is really great. Its voltage reflects well its state of charge.

The system switches currently automatically back to grid when the battery has lost 4 kWh. This figure could be increased to 6 or 7 kWh to use more of the battery capacity. (Nominal capacity is 11 KWh).


Michel Kuenemann wrote 11/30/2016 at 20:21 point

Hi Gilles,

Thanks a lot .


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Gilles KREBS wrote 11/30/2016 at 11:13 point

Good job Michel!! 

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