Cheerwing 4pcs 3.7V 550mAh Lipo Battery and 4-in-1 Charger for Syma X5 X5C X5C-1 RC Drone Parts

This affordable product is great for spare batteries and you get a really usefull charger. I never had any problems with it and would highly recomend it. But be warned: this product is the raining champion of hide and go seek, and once its gone, its gone. Also make shure to buy the right batteries for what your buying it for, and to do your own research. It would really suck if you decided to order it and waited only to find out that its the wrong voltage or it does not fit in the battery compartment. And to all the moms out there buying this as a gift: Please stop, you do not know what your talking about, please consult with somone who knows stuff about batteries.

Been flying RC toy quadcopters for years and have gone through a lot of 1s lipo batteries. These Cheerwing batteries are the best I've come across. They arrived in a nice padded box with all 4 batteries tucked away along with the charger. When 1st checked all the batteries were charged to 3.95v. I charged all 4 on my hobby grade charger to 4.2v without a problem. They all performed better than expected with long run times and some extra kick. There's no advertised "c" rating but I would guess 20 - 25. The batteries look quality and I appreciate the beefier wire used. I would buy again.

It suited it's purpose

I ordered this the same time I ordered my very first Syma X5. The items arrived fast and well packed. So far the batteries are doing well. The only issue I had was one of the four charging ports stopped working (the light indicator stopped working so I had no idea if that port was charging the battery or not so I contacted these guys (customer service) and they are amazing. The correspondence was quick and they immediately sent me a replacement unit and they also allowed me to keep the original. I recommend this product and seller. Can't go wrong with these guys. Thanks again, Cheerwing USA!

My hope was that I could rewire the battery compartment of an inexpensive "personal headlamp", to use three such batteries in parallel, rather than series. That was, I could rig-up a standard USB charger, instead of replacing the three 1.5v batteries, every few days. After charging the batteries the first time, I lost interest in my idea.

**Issues Resolved. See EDIT**has a 0 Volt output on delivery. Either it has hit true zero volt and the battery is ruined, or protection circuitry has cut off output to preserve the battery. In that case, provided charger does not provide the 'kick' to 'wake it up'. This is an immediate review as I have yet to test the other three for flight duration, but at least they are charging and have an output voltage.EDIT:All three functioning batteries charge and after testing have comparable, if not superior, performance to the original batteries that came with the drone. Despite best attempts, couldn't bring back the 0V battery to charge. However, after seeing the review, customer support was more than willing to provide a replacement, even without me asking. Will be looking back to this company for any future drone needs.

Only one battery out of the 4 worked. The 3 none would charge or hold a charge.

All of the batteries hold a charge well and fit perfectly in the charger and my Snaptain drone. All of the connections were tight. It's not the most state of the art charger so don't leave the batteries on there long after they are full. I've had no indication of any problems yet, but these kinds of batteries can overheat and catch fire pretty easily if overcharged long. The instructions are very clear about that. I get about 10 minutes out of my drone per battery. That's a 3 minute improvement from the stock batteries that came with the drone. It will charge all 4 at once, but it will take a little longer. I think it takes about 1 1/2 hours to charge all of mine at once. Still not bad