Taken 18500 Rechargeable Li-ion Battery with Charger, IMR 18500 3.7V 1500mAh Rechargeable Battery with Button Top, 4 Pack 18500 Batteries with 2-Ports Charger

Got this battery for an immersionRC power play unit. Works well, battery life is excellent. Went a few days of use for long sessions. It’s nice that it comes with 4 batteries. Don’t have to worry about portable power. You can charge it with a portable usb3 backup unit on the road or in the car with the cigarette lighter or in the wall. When you insert the battery to the charger the prongs feel little weird, like it’s cheaply made. You can feel the springs pull back, none the less, it’s an amazing buy.

Very easy to set charger up n pit batteries in .the display show the charge in batteries that's great n they last quiet a long time on single charge that's awesome . only thing I wish was different would be the charger needing a usb block for wall that I did not like I would have liked it a ton more if it was a wall plug to charge batteries but other then that its a great product

The batteries seem fine so far, but the charger I received has a problem: Lithium Ion cells with a nominal voltage of 3.7 volts (like these) are fully charged when their open-circuit voltage reaches 4.2 volts. Most chargers will charge all the way to 4.2 volts, but the charger I received stops charging at 4.0 volts. This means the batteries are only about 90% charged when it stops. When I first discovered this, I considered returning it, but actually this is better for the long term health of the batteries, so I decided to keep it. You may want to check yours -- if there's a lot of variation from one charger to another, it's possible some could stop much earlier, or worse, they could overcharge batteries and damage them.

I had the different set of batteries for my nephews RC boat, and the batteries were just not performing right. This one’s are amazing they lost so much longer and I like that they are heavy which means they are good quality usually when we talk about batteries. Overall pleasantly surprised for the price. Thank you.

I was impressed by the charger. I learned that it charges several types of batteries including AA and AAA. You can also see from the display how much charge is in the battery and it shows while it is charging.

I guess the solar people wanted a battery to call their own because I've only seen this used in applications that used solar charging. These lithium-ion batteries last longer into the night and the light it much brighter!

I bought this because I needed really odd sized rechargeable batteries for a few units around the house and upon receiving this item I have to say that this comes with one of the best chargers I have ever used. It has a read out showing a charge and it is also adjustable so you can charge multiple sized rechargeable batteries within the unit. Highly recommended

The batteries aren’t terrible but it’s a good thing they’re rechargeable.