What batteries fit in each of the different x3 conversions?
Each kit in the new x3 Series kit offers the user the best battery option that suits his/her needs. The Lithium-polymer 540i uses both 2S and 3S battery packs. Check out the Lithium-polymer 540i page for more details as to which packs fit the best. The 4-cell 540r uses regular sub C batteries, such as GP3300, IB3800’s, etc. in a 3×1 saddle pack configuration. Please check out the 4-Cell 540r page fore more details. The Gen2 540 Micro Hybrid uses 4/5 Sub-C cells such as GP2200’s and Sanyo CP-1700’s. Please see the Gen2 Micro Hybrid page for more details.