B-Grade Lithium Polymer packs are great for those not-so-important models or testing. They have a high internal resistance (thats bad), normally wont last past 60 full high-discharge cycles and may become puffy over time.
B-Grade packs are structurally sound, but lack the performance of our A-Grade packs such as Flightmax, Rhino and TURNIGY.
Spec.Minimum Capacity: 5000mAhConfiguration: 4S1P /14.8v/ 4CellConstant Discharge: 30CPack Weight: 534gPack Size: 140 x 50 x 35mmCharge Plug: JST-XHDischarge Plug: 5.5mm Bullet Connectors
B-grade packs are sold as is and no warranty is implied or given