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 we're now offering them to you at discounted prices, for those not-so-serious applications.
Minimum Capacity: 5000mAh
Configuration: 3S1P /11.1v/ 3Cell
Constant Discharge: 20C
Pack Weight: 408g
Pack Size: 147 x 49 x 26mm
Charge Plug: JST-XH
Discharge Plug: HXT4mm
B-grade packs are sold as is and no warranty is implied or given
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muy buenas baterias gran calidadseller is quick very goodThe first pack I've bought worked ok. Will see if this one will do the same.I bought three of these to power a small charging station for my park flyers. One of the three came with a dead cell. You get what you paid for I guess.As received. Cell 1: 4.0v, cells 2 & 3 3.85v. It took a long time at a 0.1A charge rate to get the battery to 4.2v/4.19v/4.19v. No field tests yet as the initial charge was just completed. I only gave it 4 stars due to the significant cell voltage differences.I got 6 packs and a Parallel charging Board, all my cells checked out fine, I use them instead of my lead acid to recharge my batteries in the field. I don't have to carry that heavy car battery anymore so I offset the cost by saving on my chiropractor, LOL...I bought 3 of these hoping for some extra long FPV flights. 2 have a very low volt cell that does not seem to want to charge up, not happy. Did not come balanced at all, 3.81v, 3.75v, 3.91v. the lowest volt cell got to 3.8 and stayed there.
I have saved batteries beore by discharging cycling a few times. these are coming up slowly, but not as good a deal as lead to believe.3 stars because it came with deans plug - my favourite.