KOReader has an excellent battery life statistics feature, so in this video I show you which ebook reader that has the best battery life of the Kobo Clara 2e, Kobo Libra H2O and the Onyx Boox Palma. Now we can discuss if we should measure which is best by either total time usage with screen on or by how much change per hour, but we can at least agree that the Kobo Clara 2e comes in the last place. Kobo Libra H2O has the best screen on time (awake since last charge), but the Onyx Boox Palma has the best change per hour.

So to me this is how I rank them:

1. Kobo Libra H2O
2. Onyx Boox Palma
3. Kobo Clara 2e

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