{"product_id":"usb-li-ion-battery-charger-2-3-4-slot-18650-18350-18500","title":"USB Li-ion Battery Charger – 2, 3 or 4 Slot Independent Charging for 18650, 18350 \u0026 18500 Batteries","description":"\u003ch2\u003eCharge All Your Li-ion Batteries in One Go\u003c\/h2\u003e\u003cp\u003eWhether you’re powering flashlights, vapes, RC devices, or any other Li-ion gear, this portable USB battery charger handles 18650, 18350, and 18500 cells with ease. Available in 2, 3, or 4-slot configurations with independent charging channels — each slot charges at its own rate so you can mix and match batteries without slowing anything down.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndependent Charging Channels\u003c\/strong\u003e — Each slot charges separately at 4.2V, so inserting one battery doesn’t affect the others\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Battery Compatibility\u003c\/strong\u003e — Fits 18650, 18350, and 18500 Li-ion rechargeable cells\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB Powered\u003c\/strong\u003e — Charges via any standard USB source (5–20V DC input); works with power banks, wall adapters, and car chargers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePortable \u0026amp; Compact\u003c\/strong\u003e — Lightweight design fits easily in a bag, range bag, or gear kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChoose Your Capacity\u003c\/strong\u003e — Available in 2-port, 3-port, or 4-port versions to match your battery count\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eKeep your flashlight batteries, EDC gear, and hobby devices topped up and ready to go. The independent channel design means you can charge a single cell or fill all slots simultaneously — no waiting, no wasted time.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: What battery sizes does it support?\u003c\/strong\u003e\u003cbr\u003eA: 18650, 18350, and 18500 Li-ion rechargeable batteries.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Does each slot charge independently?\u003c\/strong\u003e\u003cbr\u003eA: Yes — each slot has its own independent charging circuit at 4.2V, so batteries charge at their own rate regardless of what’s in the other slots.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What power source does it use?\u003c\/strong\u003e\u003cbr\u003eA: USB input (5–20V DC), compatible with wall adapters, power banks, and USB car chargers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Which version should I choose?\u003c\/strong\u003e\u003cbr\u003eA: Choose 2-port for minimal carry, 3-port for a balance of size and capacity, or 4-port if you regularly run multiple batteries.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Does it have overcharge protection?\u003c\/strong\u003e\u003cbr\u003eA: It charges to 4.2V per cell and stops — standard Li-ion termination voltage to prevent overcharging.\u003c\/p\u003e\u003ch2\u003eSPECIFICATIONS\u003c\/h2\u003e\u003cp\u003eType: USB Li-ion Battery Charger\u003cbr\u003eCharging Voltage: 4.2V per slot\u003cbr\u003eCompatible Batteries: 18650, 18350, 18500\u003cbr\u003eSlots Available: 2-port \/ 3-port \/ 4-port\u003cbr\u003eInput Voltage: USB (5–20V DC)\u003cbr\u003eOutput Power: ≤37.5W\u003cbr\u003eIndependent Channels: Yes\u003cbr\u003eDisplay Screen: No\u003cbr\u003eQuick Charge: No\u003cbr\u003eData Transmission: No\u003cbr\u003eOrigin: Mainland China\u003cbr\u003eProduct Weight: 0.17 lbs \/ 0.077 kg\u003c\/p\u003e","brand":"Authority Asset Brand","offers":[{"title":"2 Ports","offer_id":49119406620916,"sku":"14:200004890#2 Ports","price":19.99,"currency_code":"USD","in_stock":true},{"title":"3 Ports","offer_id":49119406653684,"sku":"14:29#3 Ports","price":20.99,"currency_code":"USD","in_stock":true},{"title":"4 Ports","offer_id":49119406686452,"sku":"14:175#4 Ports","price":20.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0823\/0564\/6836\/files\/S43899ba8a5904e6eb01a8ed613edb878p.webp?v=1786489314","url":"https:\/\/authorityassetbrand.com\/products\/usb-li-ion-battery-charger-2-3-4-slot-18650-18350-18500","provider":"Authority Asset Brand","version":"1.0","type":"link"}