2S Li-ion Battery 7.4V 2000mAh 20C T Plug Female Connector Rechargeable Battery with USB Battery Charger for RC Car Off Road Truck Jumper T16 Transmitter etc

Upgraded batteries in old ratchet. Probably could have gone with cells but saw this battery, the USB is much more convenient, had a docking charger prior. Also, I don't know if the charging circuitry in the device could handle batteries of different mAh capacity than what it came with. This is relatively high current device - can go up to 8amps+ if loaded. Another battery pack I tried could not supply the current. The wires in this pack are close in gauge to the motor wires.Red light on charger blinks when connected to power, steady red when charging, goes out when charged.Seems to pull between .5-1 amp from the USB port. Worked great to remove a transmission pan and put back about 15 small bolts. Usually these get tossed because there are no official replacements, but there is nothing that low profile so worth saving, and they are over $100. The old batteries I believe were 1000mah, so I guess these should double the runtime.

It's perfect for my mini lst and way lighter with more mah than any nimh battery you can fit in it. Great product I'll buy more

Works great on my Fayee FY004A HEMTT truck, its not a fast truck or high performance but this battery fits perfect and offers 4 times the capacity of the original, just needed to change the connector (be careful doing this or just use an adapter).

Finally got around to using the battery for the 1st time after receiving in the mail 30+ days ago. Ready to test my newly completed DIY RC model, checked the voltage and noted it was low, below 1v which is unusual for new lipo batteries . Place on supplied charger and the red light was flashing, should be on steady I thought. Place battery on my imax B6AC charger and got cell error, bad battery. Unfortunately for me, it was 2 days after my return window. My fault for not checking the battery out when received, but never had problems with other brands I used in the past.Update, seller contacted me to understand my problem and offered to send a replacement battery. I received a good new battery within 3 days. Excellent customer service!!! I will buy from Innovateking again. Thank You for the support......

Works as advertised. Outlasts original battery between charges.

Purchased this battery to power FS-IA6B fleshy receiver. plugged into receiver and receiver smoked, I thought I had a bad receiver, I had a spare receiver same as the other, I plugged it in and it smoked also. I did some checking of the plug of the battery and discovered one terminal connector was loose and had shorted to sensor or control conductor on receiver, the terminal in the plug was not locked into the plug. I bent the retainer tab out and it locked into the plug. also there is no indication as to the orientation of the positive/negative/sensor on the plug.

Seems to last a very long time in my 1/12 associated rc crawler. Charging is straightforward and easy with the provided charger. Lasts at least twice as long as the stock battery. Happy

Battery looks great, the problem is that it doesn't have a T plug !