{"product_id":"samsung-inr21700-50g-5000mah-high-capacity-21700-battery-8-piece-bundle-with-xtar-vc8-8-slot-smart-charger","title":"Samsung INR21700-50G 5000mAh High-Capacity 21700 Battery 8-Piece Bundle with XTAR VC8 8-Slot Smart Charger","description":"\u003ch2 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\" data-sourcepos=\"6:1-6:19;163-181\"\u003eWhy This Bundle\u003c\/h2\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"8:1-8:603;183-785\"\u003eThe Samsung 50G is a high-energy 21700 cell in the same general class as the 50E — a genuine 5000mAh capacity with a 9.8A continuous discharge rating (up to 14.7A in short pulses), built for runtime-focused applications rather than extreme current draw. A set this size deserves a charger that can handle every cell at once while keeping tabs on their health. This bundle pairs 8 genuine Samsung INR21700-50G batteries with the XTAR VC8, an 8-bay Type-C charger with real capacity testing, internal resistance detection, and independent monitoring for every slot — ready to use straight out of the box.\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch2 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\" data-sourcepos=\"12:1-12:39;792-830\"\u003eSamsung INR21700-50G Specifications\u003c\/h2\u003e\n\u003cdiv class=\"overflow-x-auto w-full px-2 mb-6\" data-sourcepos=\"14:1-28:107;832-1524\"\u003e\n\u003ctable class=\"min-w-full border-collapse text-sm leading-[1.7] whitespace-normal\"\u003e\n\u003cthead class=\"text-left\"\u003e\n\u003ctr\u003e\n\u003cth class=\"text-text-100 border-b-0.5 border-[hsl(var(--border-300)\/0.6)] py-2 pr-4 align-top font-bold\" scope=\"col\"\u003eItem\u003c\/th\u003e\n\u003cth class=\"text-text-100 border-b-0.5 border-[hsl(var(--border-300)\/0.6)] py-2 pr-4 align-top font-bold\" scope=\"col\"\u003eSpec\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003cbr\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eModel\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eSamsung INR21700-50G (Flat Top)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eStandard Discharge Capacity\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e5000mAh (4900mAh minimum)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e3.63V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eMax Continuous Discharge\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e9.8A (14.7A pulse, not for continuous use)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eStandard Charge Current\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e2.45A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eMaximum Charge Current\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e4.9A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eCharge Cutoff Voltage\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e4.20V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eDischarge Cutoff Voltage\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e2.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eChemistry\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eLi-ion, energy-focused\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eCell Size\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e21700 (approx. Φ21.1mm × 70.15mm, max weight 69.5g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eTerminal Type\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eFlat Top only (slightly recessed top)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eProtection Circuit\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eNone (unprotected cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eTypical Use\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eE-bikes, power tools, energy storage systems, robotics, professional battery pack builds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003cbr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"30:1-30:182;1526-1707\"\u003e\u003cem\u003eNote: This cell is an energy\/runtime-focused 21700, similar in profile to the Samsung 50E — built for moderate, sustained current draw rather than extreme high-drain applications.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"32:1-32:182;1709-1890\"\u003e\u003cem\u003eThis is an unprotected cell — avoid mixing with batteries of a different brand, model, or charge state, and inspect the wrap for damage before every use to prevent short circuits.\u003c\/em\u003e\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch2 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\" data-sourcepos=\"36:1-36:25;1897-1921\"\u003eThe Charger: XTAR VC8\u003c\/h2\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\" data-sourcepos=\"38:1-46:139;1923-3219\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"38:1-38:170;1923-2092\"\u003e\n\u003cstrong\u003eType-C input with QC3.0 support\u003c\/strong\u003e: up to 3A on a single bay when battery resistance is low enough — the closest match here to the 50G's 2.45A standard charge current\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"39:1-39:124;2093-2216\"\u003e\n\u003cstrong\u003e5 adjustable current levels\u003c\/strong\u003e: 3A×1 \/ 2A×2 \/ 1A×4 \/ 0.5A×8 \/ 0.25A×8 — manually selectable to match your charging needs\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"40:1-40:81;2217-2297\"\u003e\n\u003cstrong\u003e8 independent charging slots\u003c\/strong\u003e: each bay monitored and controlled separately\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"41:1-41:216;2298-2513\"\u003e\n\u003cstrong\u003eReal Capacity Test (Grading Mode)\u003c\/strong\u003e: on CH1–CH4, the VC8 tests true capacity through a charge–discharge–charge cycle at a stable 300mA discharge current, revealing whether a battery's stated capacity is accurate\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"42:1-42:112;2514-2625\"\u003e\n\u003cstrong\u003eStorage Mode\u003c\/strong\u003e: charges or discharges batteries to their rated storage voltage to maximize battery lifespan\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"43:1-43:115;2626-2740\"\u003e\n\u003cstrong\u003eSmart Battery Type Detection\u003c\/strong\u003e: automatically identifies the battery and selects the optimal charging strategy\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"44:1-44:127;2741-2867\"\u003e\n\u003cstrong\u003eVA LCD Display\u003c\/strong\u003e: real-time voltage, current, mode, battery type, internal resistance, and charged capacity for every slot\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"45:1-45:213;2868-3080\"\u003e\n\u003cstrong\u003eMultiple Safety Protections\u003c\/strong\u003e: over-current, overcharge, over-voltage, and short-circuit protection; automatically stops after full charge; reverse-connection and over-discharge activation for protected cells\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"46:1-46:139;3081-3219\"\u003e\n\u003cstrong\u003eBuilt from fire-retardant PC\/ABS material\u003c\/strong\u003e, with a built-in \"Three-Stage Lithium Battery Charging System\" (Patent No. 201720828840.6)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch2 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\" data-sourcepos=\"50:1-50:48;3226-3273\"\u003eXTAR VC8 – Supported Battery Types \u0026amp; Voltage\u003c\/h2\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"52:1-52:110;3275-3384\"\u003e\u003cstrong\u003eCompatible with 3.6V\/3.7V Li-ion\/IMR\/INR\/ICR batteries\u003c\/strong\u003e, including the Samsung 50G (21700) in this bundle:\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"54:1-54:111;3386-3496\"\u003e10440, 14500, 14650, 16340, 17500, 17670, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22650, 25500, 26650\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"56:1-56:77;3498-3574\"\u003e\u003cstrong\u003eAlso compatible with 1.2V Ni-MH\/Ni-Cd batteries:\u003c\/strong\u003e AAAA, AAA, AA, A, SC, C\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"58:1-58:102;3576-3677\"\u003e\u003cstrong\u003eEnd-of-charge voltage:\u003c\/strong\u003e 4.20±0.05V (Li-ion) \/ 1.45±0.1V (NiMH) · \u003cstrong\u003eEnd-of-charge current:\u003c\/strong\u003e \u0026lt;120mA\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch2 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\" data-sourcepos=\"62:1-62:23;3684-3706\"\u003eCompatibility Notes\u003c\/h2\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"64:1-64:558;3708-4265\"\u003eThe VC8's slider-style contacts accommodate battery lengths from 32mm to 76mm, comfortably fitting the 50G's 70.15mm length. Since the 50G has a relatively large 5000mAh capacity, charging speed matters here: with all 8 slots occupied, the VC8 defaults to a gentler 0.5A per slot, which will take a while to fully charge a set of 5000mAh cells. If you're in a hurry, manually selecting the higher current levels (up to 3A on a single slot) will get individual cells closer to the 50G's rated charge speed, at the cost of fewer slots charging simultaneously.\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch2 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\" data-sourcepos=\"68:1-68:19;4272-4290\"\u003eWhat's Included\u003c\/h2\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\" data-sourcepos=\"70:1-73:18;4292-4403\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"70:1-70:35;4292-4326\"\u003eSamsung INR21700-50G Battery × 8\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"71:1-71:23;4327-4349\"\u003eXTAR VC8 Charger × 1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"72:1-72:36;4350-4385\"\u003eUSB-A to USB-C Charging Cable × 1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"73:1-73:18;4386-4403\"\u003eUser Manual × 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch2 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\" data-sourcepos=\"77:1-77:15;4410-4424\"\u003eSafety Tips\u003c\/h2\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\" data-sourcepos=\"79:1-83:50;4426-4852\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"79:1-79:105;4426-4530\"\u003eStore batteries in a proper case, keeping them away from loose metal objects to prevent short circuits\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"80:1-80:63;4531-4593\"\u003eNever disassemble, puncture, burn, or submerge the batteries\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"81:1-81:70;4594-4663\"\u003eCharge only with a genuine, compatible charger such as the XTAR VC8\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"82:1-82:139;4664-4802\"\u003eThe 50G is an unprotected cell intended for compatible, purpose-built devices such as e-bikes, power tools, and engineered battery packs\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"83:1-83:50;4803-4852\"\u003eNever discharge below 2.5V or charge above 4.2V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch2 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\" data-sourcepos=\"87:1-87:7;4859-4865\"\u003eFAQ\u003c\/h2\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"89:1-90:182;4867-5109\"\u003e\u003cstrong\u003eQ: Can the XTAR VC8 charge Samsung 50G batteries safely?\u003c\/strong\u003e A: Yes. The VC8 automatically detects Li-ion chemistry and applies the correct charging voltage (4.2V) and current for 50G cells, with independent monitoring on each of its 8 slots.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"92:1-93:278;5111-5432\"\u003e\u003cstrong\u003eQ: How does the 50G compare to the 50E?\u003c\/strong\u003e A: The two are very close in profile — both 5000mAh-class cells with similar continuous discharge ratings (50G: 9.8A continuous\/14.7A pulse; 50E: 9.8A). Independent testing has found the 50E slightly edges out the 50G in raw capacity, while both deliver similar overall energy.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"95:1-96:115;5434-5601\"\u003e\u003cstrong\u003eQ: Will 21700 batteries fit properly in the VC8?\u003c\/strong\u003e A: Yes. The VC8 accommodates battery lengths from 32mm to 76mm, which comfortably covers the 50G's 70.15mm length.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"98:1-99:222;5603-5878\"\u003e\u003cstrong\u003eQ: Can I charge all 8 batteries at the same time?\u003c\/strong\u003e A: Yes. At the default automatic setting, all 8 can charge simultaneously at up to 0.5A per slot. Manually selecting a higher current level (up to 3A) will use fewer slots at once but charge those cells noticeably faster.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"101:1-102:175;5880-6111\"\u003e\u003cstrong\u003eQ: How do I test if a 50G battery has lost capacity?\u003c\/strong\u003e A: Use the VC8's Grading Mode on CH1–CH4. It runs a charge–discharge–charge cycle to measure true capacity, so you can identify batteries that no longer meet their rated mAh.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"104:1-105:139;6113-6322\"\u003e\u003cstrong\u003eQ: Does the VC8 require a special power adapter for fast charging?\u003c\/strong\u003e A: For the fastest speeds (2A\/3A settings), a QC3.0-compatible USB-C adapter is required. Without QC3.0, charging current will be limited.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"107:1-108:109;6324-6458\"\u003e\u003cstrong\u003eQ: What's in the box?\u003c\/strong\u003e A: 8 Samsung INR21700-50G batteries, 1 XTAR VC8 charger, a USB-A to USB-C charging cable, and a user manual.\u003c\/p\u003e","brand":"Samsung","offers":[{"title":"Default Title","offer_id":51454225416438,"sku":"OAS1790","price":115.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/2753\/6886\/files\/xtar-vc8-samsung-50g-flat-top-8pack-bundle-main_2ea70d4e-cba1-4b42-8024-e535a7b4819f.webp?v=1786968754","url":"https:\/\/oneandes.com\/products\/samsung-inr21700-50g-5000mah-high-capacity-21700-battery-8-piece-bundle-with-xtar-vc8-8-slot-smart-charger","provider":"OneAndes","version":"1.0","type":"link"}