Collection: Custom Battery Packs

Discover professionally built custom battery packs designed to match your exact energy needs. At RenewSpark, we specialize in creating tailored lithium-ion packs for e-bikes, scooters, DIY projects, solar systems, and power tools. Our packs are engineered with high-quality 18650 and 21700 cells, ensuring maximum performance, safety, and long life. Whether you need a lightweight solution for mobility or a high-capacity pack for heavy use, RenewSpark delivers reliable, eco-friendly energy you can trust.