sea jump Lipo Battery Charger+5Pcs 3.7V 600mAh Battery 5in1 for Syma X5C X5C-1 X5 X5SC X5SW H5C V931 S5C S5W SS40 FQ36 T32 T5W H42 CW4 Helicopter Part

These work great in my aging and much-repaired Walkera 4#3B palm-sized helicopter. More climbing power and 18 minutes of flight time! No other battery has lasted more than 14m.The charger is nice too. It stops charging and the 5 lights go out when each battery is full. It can charge 5 as fast as it can charge one. It doesn't come with a wall outlet adapter, just the USB cable.I'm going to store 3 of them at 50% charge in my refrigerator. At room temp they loose 25% capacity every year in storage, but at 32 F they only loose 2% per year.

Great way to charge up a box of batteries quickly! The batteries seem to last longer than the ones that came with my quad copter.Well worth the small investment!

Having batteries ready for my drone has never been easier!!- charges multiple-doesn’t take a lot of room-fits flat batteries check description for specifics-good quality that lasts for years

Great spare batteries for a drone

Ssme as pictured. Came right away, and it works. My Heli fly's

This batteries are dangerous I have just started using this batteries with the factory charger, I removed the battery from my remote to recharge it the battery was like if is going to explode,Noooo customer service at all. Just a terrible services...

We hoped replacing our 380mAh batteries for these 600mAh batteries would give our drone longer flight times, instead the batteries go dead quicker than their smaller counterpart.It's a good thing I won the lottery last year because I can afford wasting money on cheaply made imported garbage like these batteries. I hope they don't make pacemaker batteries

After first charge, the drones lights were brighter than they ever had been!! Battery lasted about 20 minutes and flew with great power the whole time.