TATTU 4PCS 7.4V 300mAh 2S 45C LiPo Battery Pack with XT30 Plug for Emax Babyhawk Micro FPV Quad Racing Drone

Honestly, I had my doubts when they arrived because they were much smaller than i had expected. These are proportionally about the size and weight of the 1S; but, I am truly amazed with these lil guys. I have tried batteries up to 800mah and had to contend with the weight, which leads to power consumption... These 300mah jewels have awesome flight time, an incredible punch and they are so light weight that they will blow your mind when making 180 turns's. I am using them on my 110mm brushless build with double-locking velcro to secure... I love it and I love what these batteries do for it. To the moon!!!

Got more flight time

I use them with my Goosky S1. A little loose in the battery slot but can be held by pushing cord into slot/between the frame. Holds very sturdy. Output is sufficiently high enough, performs like the original battery.

I like the batteries, but wanted to use them on a BetaFPV 75x, which has an XT30 connector. As a result, I ordered a bunch of XT30 connectors and attempted to solder them on - this was also an opportunity to shorten the excessively long connector wires.Unfortunately - as with modification to any product - this was risky as it presented an opportunity for failure. Which I did. I totally failed at securing the wires while soldering new connectors.I later discovered, on three out of four batteries, the two wires touched the soldering iron at the same time - therefore discharging and rendering them useless. Soo....in my case, this was essentially the most expensive 2S battery I've ever purchased ;)

I run these in my SCX24 trucks. The small size allows me to put wherever I want. Decent run time, but there is also 4 of them!!

Great set of batteries and have held up great to the riggers of discharging and recharging multiple time a day, often many days in a row. It does geat keeping the discharge rate til the end.

Batteries worked well for about a month. Used them on my Beta 75x. Fits perfectly. However, after maybe 20 charge cycles, always balance charged at 0.3c, and treated well just like my other lipos. I also purchased 450mah 2s 70 & 80c batteries from here and eBay. 2 of those batteries won't hold a charge anymore either. It says full battery on my osd, then after 30 seconds of flight time the battery drains and forces me to land. I also got nano tech 300mah 2s 45c at the same time I got these, and the performance is significantly better. More punch, 80% less sag, and they're still running as strong as the day I got them.Furthermore, a tattu 850mah 4s that was only a month old caught fire while balance charging about 3 months ago. It also burned the other tattu battery it was next to.I'm done waisting my money with tattu. Quality is inconsistent, and they're dangerous. They're cheap, but you pay another way. I'm gonna stick to what I've been using for years, nano-tech.

It's seems like a well made battery. Good weight, etc. My only complaint is that I'm getting more voltage sag than I would have expected for a 45C battery. I can put a fully charged battery (8.4v) in my Trashcan, and within 30 seconds of flying, I'll get a low voltage warning (6.4 volts). If I ease-off the throttle a bit, I can get another 1:30 minutes of flying before I'm really down to 6.4 volts, so I'm getting the expected flight time (about 2 minutes). However, I'm only pulling about 8 amps max, and should be able to pull about 13 amps before I see a real voltage sag. I will NOT buy these again. I'll look for something with a higher C rating.