If you take your Eneloop collection with you, and need a travel-friendly charger, this Nitecore i2 is marked down to just $9 today on Amazon. It’s the little brother of one of your favorite chargers, and it can accommodate 18650, AA, and AAA batteries. It’ll even detect whether they’re Li-ion, Ni-MH, or Ni-Cd, and change its behavior appropriately.

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