This 2-cell lithium polymer 950mAh battery pack will provide you with nearly 20% more runtime for your Blade 200 QX. It's plug 'n' play compatible with both the quad and the stock charger with no modifications necessary, so swapping out your stock lipo for this upgrade is totally painless. It's also a great choice for the Blade CX, CX2, and CX3 helis! 30C continuous discharge rate of 28.5 amps with 57 amp bursts. Pack includes JST discharge connector.