1 failed out of the 4 pack so far.

Ordered the 4 pack to give out as gifts. The one I kept no longer holds a charge or maybe no longer recharges. 25% failure rate? Hopefully the other 3 are still able to recharge and hold a charge over time. Trying to see if seller will send a new one. I hoping that seller will contact me to take care of the 1 year warranty.

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