E-flite 500mAh 1S 3.7V 25C LiPo Battery HHDEFLB5001S25 Airplane Batteries

Good value for price

I purchased these to power my UMX Ultrix (a great little plane by the way). I also purchased another brand that was both cheaper per battery and in theory have a higher capacity at 600 mAh. After many (30+) flights I will stick with these E-Flite even though they cost more. The cheaper batteries often result in the Ultrix whining about low power shortly after launch. I am going to relegate the cheaper ones for a glider. These E-Flite batteries do not have this problem and are reliable for 6 minutes of flight.

I now have 6 of these for my small heli and they are far better than the lectron 600mAh batteries in my application. I have 2 lectron batteries and even with the higher mAh only last about 1.5 minutes before the low voltage protection kicks in. My 4 older batteries and these 2 new batteries all last over 5 minutes flying the same way. Don't be fooled into thinking you are saving any money, flight time is all that matters. Calculate the $ per minute.

Deliveries power as expected to my older toy quadcopter. I say toy because it certainly isn’t a hobby grade quad. I get about 8 minutes of flight time. About the same as the batteries that came with it.

all is great with these batteries but costs a lot wish they were cheaper but they are great battery

1 of the 2 batteries is fine. The other one only gives about 1 to 2 minutes flight time (Blade 120 S2). I use a very good Spektrumn S44 charger. I cant seem to get past the self resolution part of the return process.

These are the exact OEM replacement batteries for my blade 120 S2. I get a much longer flight time with these new batteries compared to my old ones so they must age somewhat quickly. I do fly a lot though...

This item is only so good.