18650 Battery Charger 4 Bay Fast Charge, for 3.7V Li-ion TR IMR 10440 14500 16650 14650 18350 18500 16340(RCR123) Batteries, USB Intelligent Universal Rechargeable Battery Charger

Initially when received, all lights remained red even with no batteries. I cycled power and restarted the charging process and everything worked and still works fine. FYI the device charges to 4.2 +/- .15 volts so you wont get a green light until this voltage level is achieved. Many of these charges are like this and I don't see any problem with it. Battery and Charger remain cool temp wise during charging and since you are charging from a USB charger I don't foresee an electrical overcharge potential or safety issues with this product.

I bought this to replace the 4 battery charger that I've had for the past 5 years. I was short on money but desperately needed a charger, so after reading the reviews, I went for it. I've had it now for about 2 weeks and I'm really surprised!! It works exactly as it should. I'm charging 4 18650 batteries for my e-cig and I always have a fresh pair of charged batteries ready to go. This charger does take several hours to charge, but if you charge at night while you sleep, then you will always have a fresh set. I give this charger 5 stars. Shipping was fast, it's very easy to set up, and use. I've had ZERO issues with it at all!!!

Great piece. Shipping was pretty fast, good deal, good price, good communication.

I've been using this for almost 2 months. It's not as fast as I hoped it would be but for the price is not bad. I've used a much faster charger but it was admittedly much more expensive. The plug fits rather loosely in the adapter so it gets knocked out fairly easy, no matter what I plug it into. I bought a few extra batteries on sale so I don't really need a super fast charger. I have enough now that I don't need to have a set in the charger all the time anymore.

Great battery charger. Easy to use as you can see I already have 2 batteries charging. Red light means charging and green light means done charging. I vape all day so I always need an extra set of batteries on hand. This is perfect for my needs. Came overnight too! Amazon's 4 shipping takes the cake. Amazing sevice all around!

Had Potential. I was looking for a multi-use, multi-Battery charger for my flashlights and other utility devices I did look at many options, but this one had the majority of compatible batteries that i have. But sadly, this device failed, not only it was super light, very cheaply made but most important it did not charge my batteries. The lights on the device stated 100% charge but no charge was actually done. Pros: 1. Small package easy to carry Cons: 1. Battery doesn't charge 2. very light easy to break I would not recommend this device and will be looking for another option to meet my needs.

No complaints. Charged all the good batteries and helped identify the bad ones. I recommend leaving it to charge overnight. Make sure that your charger is capable of supplying enough current! The smaller phone chargers may not do the job as they will take a very long time if you attempt 4 18650 at the same time. I like the individual battery status indicator! This is an essential feature in a multi-battery charger!

It charges my batteries but the indicator lights don’t work right. I never really know when they are fully charged. I just leave them on for several hours. I’ve only used the 18650 batteries. My friend tried to charge a AA and it destroyed the battery. I don’t leave anything plugged in over night. Spend more money and get something better