{"product_id":"imren-4-bay-usb-c-charger-fast-charging-for-multiple-batteries","title":"IMREN 18650 Battery Charger 4-Bay USB-C - Smart Fast Charging","description":"\u003cp\u003eIn this review the IMREN 18650 Battery Charger is judged as a practical, no-frills 4-bay charger for people who need flexible charging for both 3.7V Li-ion and 1.2V Ni-MH\/Ni-Cd cells. The single biggest reason to buy is its combination of wide battery compatibility and selectable charge currents up to 2000mA, which lets hobbyists, flashlight owners and general power-tool users recharge a variety of sizes without pairing batteries. It is a sensible, portable USB-C powered unit that favors versatility over premium finish.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide compatibility:\u003c\/strong\u003e Supports many sizes including 26650, 21700, 18650, 14500 and Ni-MH AA\/AAA, so one charger covers most household and hobby cells.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour independent bays:\u003c\/strong\u003e Each slot charges independently so any number of batteries can be charged at once without pairing, which helps extend battery life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable charge current:\u003c\/strong\u003e Offers 0.5A, 1A and 2A modes selectable with the MODE button, enabling faster charging for high-capacity cells or gentler charging for smaller cells.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB-C powered portability:\u003c\/strong\u003e The USB-C input and included Type-C cable make it easy to power from a phone adapter, car USB or power bank for on-the-go use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong 75mm slots:\u003c\/strong\u003e Slots accept batteries up to 75mm in length so most button-top 21700 and many large cells fit comfortably.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic battery identification:\u003c\/strong\u003e The charger detects Li-ion versus Ni-MH\/Ni-Cd and charges different chemistries simultaneously and separately.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis charger is best for gadget owners, flashaholics, or anyone who maintains a mixed collection of rechargeable batteries and needs a single, portable charger that handles both 3.7V Li-ion and 1.2V Ni-MH cells. It is useful when users want to charge one, two or four batteries independently and appreciate the option to increase current for faster top-ups.\u003c\/p\u003e\n\u003cp\u003eIt is less well suited for users who require premium safety certification records or a charger with advanced diagnostics and guaranteed long-term durability; some customers reported inconsistent build life and variable full-charge results, so those needing the highest reliability for expensive cells may want a commercial or higher-end model.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVery versatile battery support across many sizes and both Li-ion and Ni-MH chemistries.\u003c\/li\u003e\n\u003cli\u003eIndependent bay charging and selectable 0.5A\/1A\/2A currents add flexibility for different batteries.\u003c\/li\u003e\n\u003cli\u003eUSB-C power input and included cable make it convenient for travel and varied power sources.\u003c\/li\u003e\n\u003cli\u003e75mm long slots accommodate many large cells used in modern devices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome users reported mixed charging completeness and concerns about long-term build quality, so expect variable results between units.\u003c\/li\u003e\n\u003cli\u003eNot positioned as a premium safety\/diagnostics charger compared with higher-end models.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput\u003c\/td\u003e\n\u003ctd\u003eDC 5V\/2A via USB-C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput\u003c\/td\u003e\n\u003ctd\u003eLi-ion: 4.2V; Ni-MH\/Ni-Cd: 1.48V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge current options\u003c\/td\u003e\n\u003ctd\u003e0.5A \/ 1A \/ 2A (selectable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlot length\u003c\/td\u003e\n\u003ctd\u003eUp to 75mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported cells\u003c\/td\u003e\n\u003ctd\u003e26650, 22650, 21700, 20700, 18650, 18500, 18350, 17670, 17500, 16340, 14500 and AA\/AAA\/C (Ni-MH\/Ni-Cd)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical charge times\u003c\/td\u003e\n\u003ctd\u003e18650 3000mAh: ~1.5H one battery at 2A, ~3H two batteries; 26650 5000mAh: ~2H one battery, ~4H two batteries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe IMREN 4-bay USB-C charger is a practical value choice for users who need broad compatibility and flexible charge rates in a portable package. It handles both Li-ion and Ni-MH cells independently and offers a useful fast-charge option, making it good value for hobbyists and everyday users; those needing the most rigorous long-term reliability or advanced diagnostics should consider higher-end alternatives.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan I charge different battery types at the same time?\u003c\/strong\u003e\u003cbr\u003eThe charger automatically detects Li-ion and Ni-MH\/Ni-Cd chemistry and can charge different types simultaneously in separate bays.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it support 21700 and 26650 cells?\u003c\/strong\u003e\u003cbr\u003eYes, the 75mm slot length supports many 21700 and 26650 batteries, though fit can vary by button-top shape.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat power source is required?\u003c\/strong\u003e\u003cbr\u003eUse a 5V\/2A USB-C supply such as a phone adapter, car USB or power bank; the Type-C cable is included.\u003c\/p\u003e","brand":"Imren","offers":[{"title":"Default Title","offer_id":46787267494107,"sku":"B094C6GDT2","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61yxQEC_BEL._AC_SL1200.jpg?v=1747501214","url":"https:\/\/gearmusthave.com\/products\/imren-4-bay-usb-c-charger-fast-charging-for-multiple-batteries","provider":"GearMustHave","version":"1.0","type":"link"}