The compact and lightweight design of FULLSEND 4S 450mAh 75C Lipo Batteries makes it ideal for H frames and 4S whoop drones. Features: * Advanced battery technology doubles your craft's performance time* High discharge performance*Lithium Polymer raw materials from Japan and Korea * Reliable power for FPV micro H-frame quads and whoop quads Specifications: Minimum Capacity 450mAh Discharge Rate 75C Configuration 14.8V 4S1P Charge Plug JST-XHP-5P Discharge Plug XT30 Dimension 25mm x 16mm x 63mm Net Weight 50g Package Includes: * 1pc xFULLSEND 450mAh 14.8V 4S 75C Lipo Battery - XT30 (optional) TR Tip : Avoid storing your lipo batteries for long period in a discharged or full charged state, store in "Storage Charge" condition (3.8 to 3.85volts per cell), most charger will have this function. Try to use battery protectors plate to protect against crushing your batteries, TPU landing gears are great but tend to be heavy. Alternatively use rubber/silicon wrist bands, strap it lengthwise on the battery edge, this provides some protection against denting the battery edges, especially with underslung mounted batteries.