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This is the Thunder Power Pro Power "G4" 45C, 5S, 18.5V, 3800mAh Li-Polymer Battery. Thunder Power 3800mAh series batteries deliver the same mAh capacity as previous Thunder Power 3800mAh batteries, but with upwards of 40% more power and 6-times more cycle life than most other 25C to 40C+ continuous discharge rate capable batteries! This makes them the perfect choice for use in a wide variety of 500 to .90/700 class extreme 3D performance heli and large-scale, extreme speed EDF airplane models.

Features:

• Exclusive Generation 4 (G4) chemistry offers a never before seen revolution and evolution in LiPo cell performance with up to 40% more power, 6-times better cycle life delivery and ultra-fast 6C charge rate capability!
• Offers the industry’s absolute highest level of power delivery available at the lowest possible weight, delivering up to 40% more power at the same or even lower weight than most other brand 25C to 40C+ rated batteries.
• Industry-leading cycle life and longevity up to 6-times better than other brands offers long lasting value and performance WITH NO DISCERNIBLE LOSS OF POWER DELIVERY FOR THE FIRST 100-200+ CYCLES
• Perfectly suited for pylon racer, electric ducted fan (EDF), F5B/F5D and other high-power airplane applications and the best choice for maximum power and cycle life delivery for 250 to .90/700-size extreme 3D performance helicopters
• Capable of continuous discharge rates up to 45C and burst discharge rates up to 90C, delivering higher voltage under typical and heavy loads than all other 25C to 40C+ continuous discharge rated batteries
• Capable of being charged safely at rates up to 6C for ultra-fast charge times of 10 minutes or less WITH NO REDUCTION IN CYCLE LIFE DELIVERY! (When charged using approved charger/balancer combinations only)
• Cells are built using premium quality Japanese-made materials, including the latest in super-fine substrate (nano) materials and technology to offer vastly superior power, capacity and cycle life delivery never before seen
• Cells are matched by true internal resistance, capacity and voltage for maximum power and cycle life delivery with packs PROUDLY ASSEMBLED IN THE USA by Thunder Power RC in Las Vegas, NV
• The series of choice for top pilots like Alan Szabo, Jason Krause, Bert Kammerer and many others, as well as BVM, Inc. for powering their incredible, large-scale EDFs to speeds in excess of 230MPH
• Includes 1-year manufacturers warranty and 1-year 50% off Damage Replacement Program coverage offering the best warranty and support