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.
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.
Minimum Capacity: 5000mAh
Configuration: 6S1P / 22.2v / 6Cell
Constant Discharge: 30C
Peak Discharge (10sec): 40C
Pack Weight: 812g
Pack Size: 145 x 50 x 55mm
Charge Plug: JST-XHDischarge plug: 5.5mm Bullet-connectorB-grade packs are sold as is and no warranty is implied or given
Unit Weight (g)
Max Charge Rate(C):
I have had these for over a and a year now and can say i am super happy with them, they are my hardest working batteries to save my more expensive ones when flight time is not crucial although good enough. They have served me for many flights, def over 100.. I bought 2, the one was perfect the other had a bad cell so after say 40 flights it had to be removed (puff), I converted it to a 5s instead and got another 50 flights.. I have recently made a new battery pack with the best cells been a 3s2p 10000mha 3s to use and a smaller quad (s500), i am seen 6500mha used between charges, never letting the cells below 3.5v.. To me they worked as good as some turnigy 30c batteries which also may have a weaker cell here and there over time, Go for these over a 6s zippy/turnigy imo..I've been riding my ebike with these packs in series for over a year now. They definitely do what they claim. But watch each cell like a hawk especially when attempting to parallel the packs. Also, balance charge every time. These things will catch fire if you abuse them (charge too high/discharge too low).Pretty good lipos. Mine actually balance fine 21I really cannot figure what made these batteries 'B' grade. The cells have the lowest resistance I have seen for a long time 1.5 mohm per cell average. They could have come slightly better balanced, but the charger handled than. Will be running these on a 90mm edf jet, expecting close to 100A at WOT. So time will tell how well they hold up.