{"product_id":"usb-aa-aaa-battery-charger-3-4-slot-short-circuit-protection","title":"Alasicka 3\/4-Slot USB AA AAA Battery Charger with Protection","description":"\u003ch2\u003eAlasicka USB Battery Charger – 3 or 4 Slots for AA \u0026amp; AAA Rechargeable Batteries\u003c\/h2\u003e\n\n\u003cp\u003eKeep your rechargeable batteries topped up and ready to go with the \u003cstrong\u003eAlasicka USB Battery Charger\u003c\/strong\u003e. Whether you're at home, in the office, or traveling, this compact and versatile charging station lets you charge up to \u003cstrong\u003e4 AA or AAA NiMH batteries simultaneously\u003c\/strong\u003e — all through a standard USB connection. CE and FCC certified for your peace of mind.\u003c\/p\u003e\n\n\u003ch3\u003eWhy You'll Love It\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal USB Power Input:\u003c\/strong\u003e Powered via USB 2.0 (DC 5V, 1–2A) — plug it into any USB wall adapter, computer port, or power bank you already own.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3 or 4 Independent Charging Slots:\u003c\/strong\u003e Choose the slot configuration that suits your needs. Each slot operates independently, so you can charge 1, 2, 3, or 4 batteries at a time.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLED Charging Indicator:\u003c\/strong\u003e The red LED stays on while charging and remains lit when the charge is complete, so you always know the status at a glance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShort Circuit \u0026amp; Overvoltage Protection:\u003c\/strong\u003e Built-in safety circuitry guards against short circuits and overvoltage events, keeping both your batteries and devices secure during every charge cycle.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast \u0026amp; Efficient Charging:\u003c\/strong\u003e 250mA output per slot means a full charge is typically achieved in just 2.5–5.5 hours.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Portable:\u003c\/strong\u003e Measuring only 84 × 63 × 25 mm (3.31 × 2.48 × 0.98 in), this lightweight charger slips easily into a bag, backpack, or desk drawer.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBonus Battery Storage Box (select option):\u003c\/strong\u003e Optionally includes a handy storage box (62 × 60 × 18 mm) that holds up to 4 AA or 5 AAA batteries. Internal bayonets prevent rolling, external bayonets let you connect multiple boxes together, and color-coded boxes help you distinguish charged from used batteries — all while helping prevent leakage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Batteries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAA \/ AAA NiMH rechargeable batteries\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC 5V, 1–2A (USB 2.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC 1.2V × 4 slots, 250mA per slot\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCharging Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 2.5 – 5.5 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2–5W\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSlot Options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3-slot or 4-slot (optional)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePlastic + Metal\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e84 × 63 × 25 mm \/ 3.31 × 2.48 × 0.98 in\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE, FCC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBatteries Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × USB Battery Charger (batteries \u003cstrong\u003enot\u003c\/strong\u003e included)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cem\u003eOr (select option):\u003c\/em\u003e 1 × Battery Storage Box (color may vary)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Actual product color may vary slightly from images due to monitor brightness and lighting conditions.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10cm-wireless-led-motion-sensor-night-light-type-c-rechargeable-cabinet-wardrobe-lamp-for-staircase-backlight-kitchen-lighting\"\u003e10CM Wireless LED Motion Sensor Night Light – Type-C Rechargeable Cabinet Lamp\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-piece-storage-tray-360-degree-refrigerator-storage-rotating-tray-used-for-kitchen-spice-jars-and-sundry-storage-turntable-1\"\u003e360-Degree Refrigerator Storage Rotating Tray for Kitchen \u0026amp; Sundry Organization\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-thick-memory-sponge-floor-mat-160g-slow-rebound-absorbent-non-slip-bathroom-kitchen-foot-mat-for-home\"\u003eThick Memory Sponge Non-Slip Floor Mat for Bathroom \u0026amp; Kitchen\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.epa.gov\/recycle\/used-lithium-ion-batteries\" target=\"_blank\" rel=\"noopener\"\u003eEPA guidance on lithium-ion battery handling\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eQ: What types of batteries does this USB battery charger support?\u003c\/h4\u003e\n\u003cp\u003eA: The Alasicka USB battery charger is compatible with standard AA and AAA NiMH (Nickel-Metal Hydride) rechargeable batteries. It is not designed for lithium-ion, alkaline, or other battery chemistries. Batteries are not included with purchase.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I use my existing USB wall adapter or power bank to power this charger?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The charger uses a universal USB 2.0 connection and requires a standard DC 5V, 1–2A USB power source. You can plug it into any USB wall adapter, laptop USB port, or compatible power bank you already own — no proprietary power supply needed.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is it safe to leave batteries in the charger overnight?\u003c\/h4\u003e\n\u003cp\u003eA: The charger features built-in short circuit protection and overvoltage protection to help ensure safe operation. The LED indicator remains on throughout and after charging. While these safety features add a layer of security, it is always good practice to monitor charging where possible and remove batteries once fully charged.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the difference between the 3-slot and 4-slot options?\u003c\/h4\u003e\n\u003cp\u003eA: Both options charge AA and AAA NiMH batteries via independent slots, but the 4-slot version allows you to charge one additional battery at a time. Each slot operates independently, so you can use fewer than the maximum number of slots as needed. Select your preferred configuration when adding to cart.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What types of batteries does this USB battery charger support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The Alasicka USB battery charger is compatible with standard AA and AAA NiMH (Nickel-Metal Hydride) rechargeable batteries. It is not designed for lithium-ion, alkaline, or other battery chemistries. Batteries are not included with purchase.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use my existing USB wall adapter or power bank to power this charger?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! 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