TenergyFast Charger ONLY for Arlo Certified Tenergy 3.7V 650mAh RCR123A Li-ion Rechargeable Battery, CE and FCC Certified

This is still a question mark it arrived quickly but it will not charge the 8 new batteries I received from another supplier. It is probably the batteries as they had less than 200 mv output. which is probably not enough to start the charger. I will update this when i receive new batteries.I have now gotten the charger to work. the batteries had a thin plastic coating on the positive post. I removed that and the batteries charged quickly. The size is perfect and you can charge the batteries single or in up to a group of four.

Arrived just as described by the seller and worked great

Arlo eats up battery so fast and batteries are not cheap either. Good thing I found this gem (charger batteries). This is specific for the RCR123A Arlo Batteries. I bought the charger and 4 batteries to try it out. Charging the batteries didn't take too long (about 1-1.5 hours). This is a better alternative to buying disposable batteries everytime! Saves you money big time!

update: Did more charging with this second charger. For unknown reason the batteries are only charged up to 95% according to Arlo app when freshly charged batteries are install. Need more testing. May return second charger if this continues. 1 star off for now.This is my second Tenergy CR123 charger. I have a few Arlo wifi cameras and when the batteries need to be charged it took a while to get every batteries done. I need the second charger to help speed up the process.Second charger works as primissed. Load up 4 drained Tenergy batteries and in a few hours batteries are done charging. I wish Tenergy designed this charger for other batteries (AA, AAA) too for this price. But for now i have no problem charging Tenergy rechargable CR123 for Arlo camera.

Purchased this to replace one that had overheated after using it for 7 years.

I had the same experience - batteries on the charger for about 2 hours and the pop, sizzle - one of the batteries popped and had acid around the top. Yes, I have the original batteries that came with my Arlo - CR123A - ****THIS IS THE PROBLEMARLO sells their units with non-rechargeable batteries. Insane. So, buy this unit and buy rechargeable batteries to fit it.Seller - Did email me warning of the above, but it was a few days after I received the product and I had already popped a batterySeller - Shipped fast. Product arrived in great shape.

I’ve used these for over a year now and I’m very happy with the purchase. They charge quickly and last for a fairly long time. Our cameras are always armed so they come on often. I charge them about once every two to three months so really not bad for rechargeable batteries. Before I always disarmed while at home to save battery life. They pay for themselves within a year especially if you’re mindful when your cameras are indie to battery life. Now I don’t even pay attention anymore.

I wanted to love this product because I love my security cameras and it was a great product initially! However, after being only about 2-1/2 months old (since purchased), the batteries only last 1 day in my cameras before they are dead again. It is incredibly frustrating and pointless to have to charge your batteries each day. It is unfortunate as I am out of my return period now and go figure, they completely stop working. I should've listened to the other reviews so I am telling you now, please listen to the reviews and do not purchase!