CLY 21700 18650 Lithium-ion Battery Pack delivers 3.6V 10.4Ah high-capacity power in a compact 4S1P configuration, engineered for stable energy output and extended runtime. Premium-grade lithium-ion cells ensure superior durability with over 500 charge cycles, featuring built-in overcharge and short-circuit protection for safety. Precision-welded nickel strips and reinforced ABS casing enhance structural integrity, ideal for small four-wheel skateboards, DIY electric vehicles, and portable power tools. Ultra-lightweight design (under 500g) optimizes portability without compromising performance. Compatible with most 14.4V systems, this rechargeable battery pack offers plug-and-play installation with industrial-standard connectors. Bulk orders available at wholesale pricing for resellers and OEM projects.