{"product_id":"18650-li-ion-battery-shell-box-with-pcb-protection-circuit","title":"18650 Li-ion Battery Shell Box with PCB Protection Circuit","description":"\u003ch2\u003e18650 Li-ion Battery Pack Shell with PCB Charging Protection Circuit Board\u003c\/h2\u003e\n\u003cp\u003eBuild, repair, or assemble custom battery packs with this durable \u003cstrong\u003e18650 lithium-ion battery shell box\u003c\/strong\u003e. Designed for 5, 10, or 15-cell configurations, this nylon shell with rubber coating houses a built-in \u003cstrong\u003ePCB charging protection circuit board\u003c\/strong\u003e to help manage charging cycles and protect your battery assembly. Made in Mainland China.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e⚠️ Important Notice:\u003c\/strong\u003e This product is a battery pack housing component only — \u003cem\u003ebattery cells are NOT included\u003c\/em\u003e. It is intended for experienced users who are familiar with lithium battery performance and have hands-on experience with battery pack assembly and repair.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRobust Construction:\u003c\/strong\u003e Durable nylon plastic shell with rubber coating for a secure, non-slip grip\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilt-in PCB Protection:\u003c\/strong\u003e Integrated charging protection circuit board helps safeguard your battery assembly\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMultiple Configurations:\u003c\/strong\u003e Suitable for 5-cell, 10-cell, and 15-cell 18650 battery arrangements\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Use:\u003c\/strong\u003e Ideal for DIY battery pack builds, repairs, and replacements\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic + Metal internals\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications \u0026amp; Sizes\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eDimensions (cm)\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eA1\u003c\/td\u003e\n\u003ctd\u003e11.5 × 4.5 × 7.5 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eA2\u003c\/td\u003e\n\u003ctd\u003e11.5 × 7.5 × 6.5 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eA3\u003c\/td\u003e\n\u003ctd\u003e11.5 × 7.5 × 8.2 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eA4\u003c\/td\u003e\n\u003ctd\u003e11.0 × 5.5 × 3.5 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eA5\u003c\/td\u003e\n\u003ctd\u003e9.0 × 7.0 × 12.0 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePackage Includes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Battery Shell Box with PCB Protection Circuit Board (battery cells not included)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePhotos are for illustration purposes only; please refer to the size chart above for exact dimensions.\u003c\/li\u003e\n  \u003cli\u003eSlight measurement differences may occur due to manual measurement.\u003c\/li\u003e\n  \u003cli\u003eActual color may vary slightly from images due to monitor settings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.energystar.gov\/products\" target=\"_blank\" rel=\"noopener\"\u003eENERGY STAR product efficiency guidance\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Does this 18650 battery shell box come with battery cells included?\u003c\/h4\u003e\n\u003cp\u003eA: No, the battery cells are NOT included. This product is a battery pack housing component — the nylon shell box and PCB protection circuit board only. You will need to source compatible 18650 lithium-ion cells separately.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What configurations of 18650 cells does this shell support?\u003c\/h4\u003e\n\u003cp\u003eA: This battery shell box is designed to support 5-cell, 10-cell, and 15-cell 18650 lithium-ion battery configurations. Multiple size variants (A1–A5) are available to suit different build requirements — refer to the size chart for dimensions.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this suitable for DIY battery pack building and repair?\u003c\/h4\u003e\n\u003cp\u003eA: Yes, this shell and PCB protection circuit board set is specifically designed for DIY battery pack assembly and repair. However, it is recommended only for users who have prior experience and knowledge of lithium battery performance and safe assembly practices.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Does this 18650 battery shell box come with battery cells included?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No, the battery cells are NOT included. This product is a battery pack housing component — the nylon shell box and PCB protection circuit board only. You will need to source compatible 18650 lithium-ion cells separately.\"}}, {\"@type\": \"Question\", \"name\": \"What configurations of 18650 cells does this shell support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This battery shell box is designed to support 5-cell, 10-cell, and 15-cell 18650 lithium-ion battery configurations. 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