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finally 3 months ago I bought a gens ace 6500 50c for compare with my a-spec ............. same REAL mah capacity than the a-spec 6600 ........ same weight ....... same punch ...... each batterys are very equalized and works awesome

after 9 months of races the a-spec still works great ....... charge +- the same capacity and have the same punch ............. awesome batterys after more than 100-120 charges





also i bought 2 hyperion chargers .......... 1420i and 720i ........ and sincerely works very similar than the eco-6 10 .... each balance perfect the cells ........... the unic difference is the "theoric" mah of charge ........ for example using 6600mah lipos the eco-6 10 charge 6600-6900mah ........ and using a hyperion only charge 5600-5700 ......... probably the wires of the charger influence on that