{"product_id":"12v-18v-18650-lithium-battery-charger-screwdriver-wrench-li-ion","title":"12.6V \u0026 21V Li-ion Battery Charger for 18650 Power Tool Packs","description":"\n\u003ch2\u003eSmart Lithium Battery Charger for 12V \u0026amp; 18V Power Tool Battery Packs\u003c\/h2\u003e\n\u003cp\u003eKeep your cordless screwdrivers, wrenches, and power tools running strong with this intelligent 18650 lithium battery charger. Available in two output configurations — \u003cstrong\u003e12.6V 2A\u003c\/strong\u003e and \u003cstrong\u003e21V 1A\u003c\/strong\u003e — this compact charger is built to safely and efficiently top up your Li-ion battery packs. With automatic stop charging, an LED status indicator, and wide AC input compatibility (100–240V), it's a reliable everyday charging solution for DIYers and professionals alike.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSmart Charging with LED Indicator:\u003c\/strong\u003e Red light during charging, green light when fully charged — no guesswork needed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAutomatic Cut-Off:\u003c\/strong\u003e Stops charging automatically when the battery is full, preventing overcharging and extending battery life.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Output Options:\u003c\/strong\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003e12.6V – 2A:\u003c\/strong\u003e Output voltage range 10.8V–13V, current 0–2A (for 12V Li-ion packs)\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003e21V – 1A:\u003c\/strong\u003e Output voltage range 18V–22V, current 0–1A (for 18V Li-ion packs)\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide AC Input:\u003c\/strong\u003e AC 100–240V, 50\/60Hz — compatible with EU and US wall plugs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal DC Plug:\u003c\/strong\u003e DC 5.5×2.1mm \/ 5.5×2.5mm barrel connector fits a wide range of battery packs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCE \u0026amp; RoHS Certified:\u003c\/strong\u003e Meets safety and environmental compliance standards.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePatented Design:\u003c\/strong\u003e Engineered for reliable, consistent charging performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLightweight \u0026amp; Compact:\u003c\/strong\u003e Approx. 100g gross weight — easy to store or carry.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eItem Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLithium Battery Charger\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBAC001\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAC 100–240V, 50\/60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Option 1\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12.6V – 2A (Voltage: 10.8V–13V, Current: 0–2A)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Option 2\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e21V – 1A (Voltage: 18V–22V, Current: 0–1A)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Output Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤37.5W\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDC Plug Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.5×2.1mm \/ 5.5×2.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePlug Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEU \/ US\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGross Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 100g\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE, RoHS\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Batteries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18650 Li-ion \/ Li-ion Battery Packs (12V \u0026amp; 18V)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003e⚠️ Important Note:\u003c\/strong\u003e This charger is designed specifically for compatible 18650 Li-ion battery packs as described. Actual output voltage and current may vary depending on the battery's charge state — these are not fixed values. Output performance may also differ when used with appliances of varying impedance. Please confirm compatibility before purchasing.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Lithium Battery Charger (battery NOT included)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/hex-shank-wire-twister-drill-attachment-rebar-tie-tool\"\u003e1\/4\" Hex Shank Wire Twister Drill Attachment | Rebar Tie Tool\u003c\/a\u003e\u003c\/li\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\u003c\/ul\u003e\n\n\u003cp\u003eFor information on battery and charger safety standards, visit the U.S. Consumer Product Safety Commission – Lithium-Ion Battery Safety.\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Battery_charger\" target=\"_blank\" rel=\"noopener\"\u003eBattery charger\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What battery packs is this 18650 lithium battery charger compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This charger is designed for 18650 Li-ion battery packs used in 12V and 18V cordless power tools such as screwdrivers and wrenches. The 12.6V 2A output suits 12V Li-ion packs (3S), while the 21V 1A output is suitable for 18V Li-ion packs (5S). Always verify your battery pack's voltage rating before use.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Will this charger work in both the US and Europe?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The charger supports a wide AC input range of 100–240V at 50\/60Hz, making it compatible with standard wall outlets in both the United States and Europe. Both EU and US plug types are available.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I know when the battery is fully charged?\u003c\/h4\u003e\n\u003cp\u003eA: The built-in LED indicator shows a red light while charging is in progress. Once the battery reaches full charge, the light switches to green and the charger automatically stops charging — protecting your battery from overcharging.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What DC connector size does this charger use?\u003c\/h4\u003e\n\u003cp\u003eA: This charger uses a standard DC barrel connector sized 5.5×2.1mm or 5.5×2.5mm, which is compatible with a wide range of power tool battery packs and accessories that use this common connector standard.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What battery packs is this 18650 lithium battery charger compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This charger is designed for 18650 Li-ion battery packs used in 12V and 18V cordless power tools such as screwdrivers and wrenches. The 12.6V 2A output suits 12V Li-ion packs (3S), while the 21V 1A output is suitable for 18V Li-ion packs (5S). Always verify your battery pack's voltage rating before use.\"}}, {\"@type\": \"Question\", \"name\": \"Will this charger work in both the US and Europe?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The charger supports a wide AC input range of 100–240V at 50\/60Hz, making it compatible with standard wall outlets in both the United States and Europe. Both EU and US plug types are available.\"}}, {\"@type\": \"Question\", \"name\": \"How do I know when the battery is fully charged?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The built-in LED indicator shows a red light while charging is in progress. 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