When working works well.
This was to be my second replacement. The battery charged but would not work in the ear piece. The company promptly sent me a replacement that does charge and works well. There might be a slight difference in the contacts as the replacement needs to be moved around on the charger. This makes me think the first one might not be able to seat on the ear piece properly.<br /><br />Ordered and received another replacement battery. This one works fine and I hope it will last longer than the six months or so the prior one made it. The CS10 and I guess the CS50 are great units. My CS10 works flawlessly if only they came with decent batteries and customer service.
Rating: 3 stars