High-Quality 21.7mm Cylindrical Battery Holder for 21700 Cells
Precision-engineered for 21700 batteries with a snug 21.7mm inner diameter, ensuring secure fit for 3P to 13P configurations. Made from durable ABS plastic for long-lasting use and heat resistance. Features smooth interior walls to prevent cell damage and reinforced structure for stable stacking. Ideal for DIY power banks, solar projects, and custom battery packs. Exclusive bulk pricing for wholesale buyers—lowest global rates guaranteed. Perfect for large-scale energy storage solutions and industrial applications. Upgrade your builds with professional-grade organization—order today and streamline your battery setups effortlessly.