Sorry for not replying earlier, but my laser is doing very well. I recently started using new batteries myself, and they are MUCH better than the ones O-like provided me with. They last me about 8 days before I need a recharge, and I use the laser about 10 minutes every night. Its awesome! Have you tried getting a partial refund from O-like? I think you should tell them that you recieved a defective battery or battery charger.