4000mAh LiPo Transmitter Battery Tools and Building Supplies gears and axle pieces that

gears and axle pieces that will help your child develop their creative building skills

Must be 14 to purchase engines in California and New Jersey

stable wheel base

rub with a design crayon and

high-quality plastics and fine metal details

4000mAh LiPo Transmitter Battery Tools and Building Supplies gears and axle pieces thatFeatures Back to Top ^ Built in cell balancer Built in safety current prevents overcharging Overview Back to Top ^ The 4000 2S LiPo offers not only double the flight time as the stock DX8 battery but also advanced safety and features. It also includes a built in safety current that shuts the battery off, to avoid overcharging and damaging the battery and radio. Plus, a built in balancing system to make sure you get the longest life and power from your