Haven't had any issues with over 20 runs on them
5200 mAh 7.4V 2S 30C Lipo Rechargeable Battery
The package came in perfectly but I haven’t tried the battery part just yet.
5200 mAh 7.4V 2S 30C Lipo Rechargeable Battery – Compatible with LAEGENDARY RC Truck
I bought this battery for my Legend 1:10 truck. The run time is great, and it’s quite a bit heavier than the 1600 mah batteries. So I actually noticed a difference in handling and traction. BUT one major down side is it causes the motor to over heat. After about 20 minutes of strong use in hot summer weather. It would stop and I’d have to let it cool down a bit. I could restart the truck, but I didn’t want to burn the engine up by continually restarting. So the truck at least has an overheat feature. Great battery, but buyers in hot climates beware that your can can overheat.