BTG 3.7V 350mAh Battery & X6 Charger for JJRC H44 H6D H6C H98 HS170 HS107C F180W F180C Drone Syma X11 Hubsan H107C H107D H107L H108 M62R Drone

5 stars for the batteries, one star for the charger... averages out at 3, right?The charger sockets are loose and the batteries don't stay plugged in very well. The batteries work as they should. The charger does charge to appropriate voltages if the batteries stay connected.

One battery arrived very puffed up. (Ive read further, and this is extremely dangerous for lipo batteries).The charger flickers and cuts on and off.VERY much a cheaply made junk product

I bought these for Syma X11C quadcopter. The batteries are good, but the charger is iffy. I can't charge more than 2 batteries at a time with it.Hint: Make some tabs out of electrical tape and add them to the batteries. It makes them easier to pull out of your quadcopter.I get 5 minutes of great runtime, and the last 2 minutes I bring it down because it starts to lose thrust.

I gave it a one star because I couldn't go any lower. I read some reviews about using them in the "SYMA X11 R/C Quadchopter" prier to purchasing the batteries. Some of the reviewers said they would work but that'snot completely truthful. They are 1/2 inch longer than the original ones and Drone smells hot when trying to use..

Got two sets, both came with batteries from different manufactures not big deal but not ideal either. DO NOT RELY ON LIGHTS they can go in and out or stay on. Use MATH so you don't over charge. 1000mah wall charger will charge 6x380 in two hours or so.

Like another customer reported, I found that the polarity of the batteries were the reverse of what my Hubsan X107D copter takes. The motors immediately started at max power when I connected the battery, although the throttle was all the way down. I resoldered all the connectors to fix the problem.

Bought these for my son's syma x11c and they work great! Last longer then the 200 mAh batterys the quad came with. The six terminal battery charger works very good as well. Charging six batterys at a time without over charging.

Batteries work great, but they barely fit in the X11. They exceed the size of the opening and the trim barely compensates for the imbalance