Review on EBL 8-Pack Rechargeable Lithium AA Batteries With Smart Charger - Long-Lasting 1.5V AA Li-Ion Batteries by Daniel Haddo

September 2022 Update: Bottom line? These are lithium AA batteries done right! I have a battery toothbrush, and alkalines don't seem to last very long. NiMH rechargeables don't seem to put out the voltage to make the toothbrush work very well. These rechargeable lithium batteries are PERFECT for the job. They put out strong voltage, and so far they are running my toothbrush, flashlights, and whatever other device I use them in MUCH better than NiMH batteries. These are great for devices where having the full 1.5v matters.Also, I have one other brand of lithium AA batteries. They also put out strong voltage, but they also have circuitry for lighting when they are charging. While this is a neat effect, like the lithium AAs with built in USB ports, any additional circuitry takes up space that could be used for actual battery capacity. These EBLs last significantly longer than the other brands of lithium batteries I have. I highly recommend them. You're getting a pure battery that will last as long as possible with no superfluous bells or whistles. And that's how I like my batteries! Excellent product by EBL.May 2022 Update: EBL has AWESOME customer service. I'm updating my review because they replaced the batteries with a new set, and the new set charges PERFECTLY! I must have just had a bad batch, but I'm happy to report that EBL stands behind their warranty on their product. If I have any additional issues with the new batteries, I'll update, but so far so good!Old review:So first off, my son ended up taking them. He planned on using them but never did. Never used them and never charged them. Since we purchased these batteries we have had to move. As we've gradually been unpacking, we finally found the batteries. They all look brand new and have no signs of use. They are over a year old, but as they've never been used or charged, I never expected them to be bad!Sadly, 6 of the 8 batteries won't charge. The 2 that do don't hold a charge very well. These were expensive, and it was a lot of money wasted. As you can see in the picture, six of the batteries don't charge at all. They will stay red indefinitely, even if the charger is connected for several days!I have other lithium AA chargers, and those charges also do not charge these EBL batteries. My older lithium AA and AAA batteries all work fine. These EBLs are the first ones I've ever had problems with.Moral of the story? Make sure you test your studf out RIGHT AWAY before your return policy runs out. 😉