B-Grade Lithium Polymer packs are great for those not-so-important modelstesting. They have a high internal resistance (thats bad), normally wont last past 60 full high-discharge cyclesmay become puffy over time.

B-Grade packs are structurally sound, but lack the performance of our A-Grade packs such as Flightmax, RhinoTURNIGY.

hexTronik usually sells B-grade batteries to smaller vendors who in turn sell online at a discount. However were now offering them to you at discounted prices, for those not-so-serious applications.

Spec.
Minimum Capacity: 5000mAh
Configuration: 2S1P /7.4v/ 2Cell
Constant Discharge: 40C
Pack Weight: 325g
Pack Size: 138 x 47 x 25mm
Charge Plug: JST-XH
Discharge Plug: 5.5mm Bullet-connector

B-grade packs are sold as isno warranty is impliedgiven