{"product_id":"3x18650-diy-power-bank-case-dual-usb-fast-charge-led-night-light","title":"DIY 18650 Power Bank Case – Dual USB, LED Night Light","description":"\n\u003ch2\u003eBuild Your Own Power Bank – 3×18650 DIY Charging Case\u003c\/h2\u003e\n\u003cp\u003eTake control of your portable power with this \u003cstrong\u003e3×18650 DIY Power Bank Case\u003c\/strong\u003e. Designed for makers, tech enthusiasts, and everyday users who want a customizable charging solution, this solder-free battery box lets you assemble your own high-capacity power bank in minutes — no tools or technical expertise required. Simply insert three 18650 flat-head lithium batteries (sold separately) and you're ready to fast-charge two devices simultaneously.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e⚠️ Important Notes Before You Buy:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBatteries are \u003cstrong\u003eNOT included\u003c\/strong\u003e — only the DIY battery box\/case.\u003c\/li\u003e\n  \u003cli\u003eOnly compatible with \u003cstrong\u003e18650 flat-head lithium batteries\u003c\/strong\u003e.\u003c\/li\u003e\n  \u003cli\u003eThis is a \u003cstrong\u003enon-removable shell\u003c\/strong\u003e — once assembled, it cannot be disassembled. Assemble carefully the first time!\u003c\/li\u003e\n  \u003cli\u003eDo \u003cstrong\u003enot\u003c\/strong\u003e insert batteries in reverse — doing so will damage the circuit board.\u003c\/li\u003e\n  \u003cli\u003eAll installed batteries must have \u003cstrong\u003econsistent capacity ratings\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual USB Output:\u003c\/strong\u003e Charge two devices at the same time with 5V 2A output per port.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMicro + Type-C Dual Input:\u003c\/strong\u003e Flexible recharging options for the case itself.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e10W Fast Charging:\u003c\/strong\u003e Rapid charge and discharge capability keeps your devices powered up quickly.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLED Night Light:\u003c\/strong\u003e Built-in warm LED with 4 adjustable brightness levels — a handy companion for camping, travel, or bedside use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLarge Screen Digital Display:\u003c\/strong\u003e Real-time battery percentage readout so you always know how much power remains.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSolder-Free Assembly:\u003c\/strong\u003e No soldering required — a straightforward plug-and-play DIY build.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTransparent Shell:\u003c\/strong\u003e Sleek, tech-forward aesthetic lets you see the internals.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHanging Rope Design:\u003c\/strong\u003e Convenient lanyard loop for easy carrying on the go.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMulti-Layer Safety Protection:\u003c\/strong\u003e High-quality components with low-temperature fast charging to protect both the case and your devices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5V 2A (Micro USB + Type-C)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5V 2A (Dual USB)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10W Fast Charge\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 × 18650 Flat-Head Lithium (not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlack \/ Transparent Shell\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 35mm × 63mm × 82mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 75g (without batteries)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNight Light\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWarm LED, 4-gear adjustable brightness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × 18650 DIY Power Bank Case (batteries NOT included)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eMade in Mainland China.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You Might Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-5l-portable-hydrogen-water-bottle-hydrogen-rich-sports-kettle-1\"\u003e1.5L Hydrogen Water Bottle – Portable Hydrogen-Rich Sports Kettle\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/adhesive-metal-plates-magnets-self-stick-steel-strips-10-pack\"\u003e10-Pack Adhesive Metal Plates for Magnets – Self-Stick Steel Strips\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor guidance on the safe use and handling of lithium-ion batteries, visit the U.S. Consumer Product Safety Commission (CPSC) – Lithium-Ion Battery Safety Information.\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Anker\" target=\"_blank\" rel=\"noopener\"\u003eAnker\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eQ: Are the 18650 batteries included with this DIY power bank case?\u003c\/h4\u003e\n\u003cp\u003eA: No, the batteries are \u003cstrong\u003enot included\u003c\/strong\u003e. You will need to purchase three 18650 flat-head lithium batteries separately. Make sure all three batteries have the same capacity rating for safe and optimal performance.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I use button-top (non-flat-head) 18650 batteries?\u003c\/h4\u003e\n\u003cp\u003eA: No. This power bank case is only compatible with \u003cstrong\u003e18650 flat-head lithium batteries\u003c\/strong\u003e. Button-top batteries will not fit correctly and may damage the circuit board.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I recharge the power bank case itself?\u003c\/h4\u003e\n\u003cp\u003eA: The case supports dual input recharging via a \u003cstrong\u003eMicro USB\u003c\/strong\u003e or \u003cstrong\u003eType-C cable\u003c\/strong\u003e at 5V 2A, giving you flexibility depending on the cable you have available.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I disassemble the case once assembled?\u003c\/h4\u003e\n\u003cp\u003eA: No — this is a \u003cstrong\u003enon-removable shell\u003c\/strong\u003e. Once the case is assembled, it cannot be taken apart again. Take your time during assembly and follow the instructions carefully to avoid mistakes.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the LED night light feature used for?\u003c\/h4\u003e\n\u003cp\u003eA: The built-in warm LED night light offers 4 adjustable brightness levels. It's perfect for use as a bedside light, during camping trips, or any situation where you need a soft, portable light source alongside your charging needs.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Are the 18650 batteries included with this DIY power bank case?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No, the batteries are not included. You will need to purchase three 18650 flat-head lithium batteries separately. Make sure all three batteries have the same capacity rating for safe and optimal performance.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use button-top (non-flat-head) 18650 batteries?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. This power bank case is only compatible with 18650 flat-head lithium batteries. 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