2 Cell 7.4V Li-ion 7000mAh Battery w\/ Tamiya Connector from Admiral - ADM6024-015 
Assembled using high quality imported Taiwanese NCR 18650 cells, this Admiral Li-ion battery is intended as an upgrade battery for Heng Long tanks and other 2s powered surface vehicles with the pre-soldered Tamiya connector. This pack's 7000mAh capacity significantly extends drive time and can sustain higher current draw conditions. An integrated BMS (Battery Management System) PCB protects the cells from overcharging and over-discharge.
Note: This battery pack is Li-ion (Lithium Ion) chemistry. It is not Li-Po (Lithium-Polymer) chemistry. Set your charger to charge 2s 7.4v with Li-ion chemistry.