6500mAh 15.2V 120C 4S Smart Pro Race Hardcase Li-HV Battery Pack with 5mm Bullets (SPMX64S120HT)

Spektrum Smart Pro-Series 4S 6500mAh 15.2V 120C LiPoHV hardcase battery pack with 5mm bullets is a high-performance power source designed for 1/10 and 1/8 scale RC racing. It delivers a steady, high voltage under demanding loads and a 120C continuous discharge to feed the motor and ESC, helping you accelerate quickly and maintain control on the track. The hard-case enclosure protects the cells during aggressive runs, and the 4S layout with a compact design supports a lower center of gravity and easy installation with 5mm bullets.

As part of Spektrum Smart Pro-Series, this battery uses Smart technology to store key data and communicate with compatible Spektrum Smart chargers for simpler setup and monitoring. A built-in memory microchip records details such as capacity, cell count, cycles, temperature, and internal resistance, and can automatically discharge to a safe 3.9V per cell after periods of inactivity. The new case design is durable and compact for balanced fitment, while double-sided bullet connectors simplify installation. It supports fast charging up to 5C and can be charged on non-smart chargers with the included adapter.