All of Overlander's LiPo batteries are designed with optimal performance in mind. We always work to maintain the longevity and reliability of our products. Our LiPo batteries are manufactured using the superior stacking method; this provides dependable capacity and consistent power. Every cell is fully matched in Internal Resistance, Voltage and Weight before they are put together to create your battery packs. This stringent matching process makes for exceptional results both competitively and professionally.