ProTek R/C 1S "High Power" Blade 120SR Li-Poly Helicopter 25C Battery Pack (3.7V/550mAh)
[PTK-LP-550-1S25]

ProTek R/C 1S "High Power" Blade 120SR Li-Poly Helicopter 25C Battery Pack (3.7V/550mAh)
Rodney Powell - Rating: 5 of 5 Stars! Verified Owner Monday, October 10, 2011
I bought two of these Protek batteries and plan on buying more !! The run times for these packs compared to the E-flights is a LOT better !! The only problem I've had is that the end caps will pull off if you're not carefull ! Make sure the connections inside the cap are ok then a very small dab of hot glue and you're back in business !! Other than that these are great packs for your 120 SR ! I'd love to see Protek come out with a pack with even more capacity but I know weight would be a problem.
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