{"product_id":"18650-battery-capacity-tester-2-channel-mah-mwh-internal-resistance-meter","title":"2-Ch 18650 Battery Capacity Tester | MAh MWh \u0026 Internal Resistance","description":"\n\u003ch2\u003eTest, Charge \u0026amp; Discharge 18650 Batteries with Precision\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eHELTC 2-Channel Battery Capacity Tester\u003c\/strong\u003e is a professional-grade digital meter designed to measure the true capacity (MAh\/MWh) and internal resistance of 18650 lithium-ion batteries simultaneously across two independent channels. Whether you're a hobbyist, DIY electronics enthusiast, or battery recycler, this tester gives you the accurate data you need to assess battery health and performance — all in one compact device.\u003c\/p\u003e\n\n\u003cp\u003ePowered via a Type-C interface (cable included) and built with active fan cooling and overheating protection, this tester is engineered for safe, reliable, and repeatable measurements.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2-Channel Testing:\u003c\/strong\u003e Measure two batteries simultaneously and independently for maximum efficiency.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMAh \u0026amp; MWh Capacity Measurement:\u003c\/strong\u003e Get accurate real-world capacity readings in both milliamp-hours and milliwatt-hours.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInternal Resistance Measurement:\u003c\/strong\u003e Uses the DC two-wire method to measure internal resistance and assess battery condition.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1A Charge \u0026amp; Discharge:\u003c\/strong\u003e Supports up to ~1A charging (auto cut-off at 4.2V, stops when current drops below 0.1A) and up to ~1A discharge (auto stop at configurable voltage).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustable Stop-Discharge Voltage:\u003c\/strong\u003e 11 steps from 2.5V to 3.5V — configure to your specific battery requirements.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAutomatic Charge\/Discharge \u0026amp; Cycling:\u003c\/strong\u003e Supports automatic mode with 1–9 configurable charge\/discharge cycles.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActive Fan Cooling:\u003c\/strong\u003e Built-in fan actively dissipates heat during testing for extended, worry-free operation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverheating Protection:\u003c\/strong\u003e Automatically safeguards your batteries and device if temperatures rise beyond safe limits.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStatus Alerts:\u003c\/strong\u003e On-screen notifications keep you informed at every stage of the test cycle.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnglish Language Interface:\u003c\/strong\u003e Easy-to-read digital display with full English menu system.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType-C Power Input:\u003c\/strong\u003e DC 5V input via modern Type-C connector — power supply and cable included.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Durable:\u003c\/strong\u003e Plastic + metal construction; dimensions: 190 × 50 × 27 mm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWorking Voltage:\u003c\/strong\u003e DC 5V (Type-C)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Batteries:\u003c\/strong\u003e Lithium-ion cells with stop-discharge voltage 2.5–3.5V and charge voltage up to 4.2V (not compatible with LiFePO4 \/ lithium iron phosphate)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChannels:\u003c\/strong\u003e 2 independent channels\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCharge Current:\u003c\/strong\u003e Up to ~1A (auto cut-off)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDischarge Current:\u003c\/strong\u003e Up to ~1A (non-adjustable, non-constant current)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInternal Resistance Method:\u003c\/strong\u003e DC two-wire\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCycle Settings:\u003c\/strong\u003e 1–9 cycles (automatic mode only)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeat Dissipation:\u003c\/strong\u003e Active fan cooling\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Failure Save:\u003c\/strong\u003e Saves setup parameters (measurement data not saved)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct Size:\u003c\/strong\u003e 190 × 50 × 27 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic + Metal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery Included:\u003c\/strong\u003e No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMade in:\u003c\/strong\u003e Mainland China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× 2-Channel Battery Capacity \u0026amp; Internal Resistance Tester\u003c\/li\u003e\n  \u003cli\u003e1× Type-C Power Supply Cable\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eExplore More from Our Store\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-percent-better-every-day-motivational-canvas-wall-poster-inspirational-quote\"\u003e\"1% Better Every Day\" Motivational Canvas Poster | Wall Art\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/everything-is-figureoutable-sage-green-quote-canvas-wall-art\"\u003e\"Everything Is Figureoutable\" Sage Green Quote Canvas Wall Art\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAuthoritative Reference\u003c\/h3\u003e\n\u003cp\u003eFor guidance on the safe handling and storage of lithium-ion batteries, refer to the U.S. Consumer Product Safety Commission (CPSC) – Lithium-Ion Battery Safety Information.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What types of batteries are compatible with this 18650 battery capacity tester?\u003c\/h4\u003e\n\u003cp\u003eA: This tester is compatible with lithium-ion (Li-ion) batteries that have a stop-discharge voltage between 2.5V and 3.5V and a full charge voltage of 4.2V. It is \u003cstrong\u003enot\u003c\/strong\u003e compatible with lithium iron phosphate (LiFePO4) batteries. Most standard 18650 cells fall within these parameters.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I run tests on both channels at the same time?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! Both channels operate independently and simultaneously. You can test two batteries at once, saving time when sorting or evaluating large batches of 18650 cells.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does this tester support cyclic charge\/discharge testing?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. In automatic mode, the tester supports 1 to 9 configurable charge\/discharge cycles. This is useful for conditioning batteries or getting an accurate average capacity reading over multiple cycles.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is the discharge current adjustable?\u003c\/h4\u003e\n\u003cp\u003eA: No — the discharge current is fixed at a maximum of approximately 1A and is non-adjustable. However, the stop-discharge voltage is adjustable across 11 steps from 2.5V to 3.5V in 0.1V increments.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Will the device overheat during long testing sessions?\u003c\/h4\u003e\n\u003cp\u003eA: The tester features an active fan cooling system and built-in overheating protection. If temperatures exceed safe limits, the device will automatically engage protection measures to keep your batteries and the tester safe.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What types of batteries are compatible with this 18650 battery capacity tester?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This tester is compatible with lithium-ion (Li-ion) batteries that have a stop-discharge voltage between 2.5V and 3.5V and a full charge voltage of 4.2V. It is not compatible with lithium iron phosphate (LiFePO4) batteries. Most standard 18650 cells fall within these parameters.\"}}, {\"@type\": \"Question\", \"name\": \"Can I run tests on both channels at the same time?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! Both channels operate independently and simultaneously. You can test two batteries at once, saving time when sorting or evaluating large batches of 18650 cells.\"}}, {\"@type\": \"Question\", \"name\": \"Does this tester support cyclic charge\/discharge testing?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. In automatic mode, the tester supports 1 to 9 configurable charge\/discharge cycles. This is useful for conditioning batteries or getting an accurate average capacity reading over multiple cycles.\"}}, {\"@type\": \"Question\", \"name\": \"Is the discharge current adjustable?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — the discharge current is fixed at a maximum of approximately 1A and is non-adjustable. However, the stop-discharge voltage is adjustable across 11 steps from 2.5V to 3.5V in 0.1V increments.\"}}, {\"@type\": \"Question\", \"name\": \"Will the device overheat during long testing sessions?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The tester features an active fan cooling system and built-in overheating protection. If temperatures exceed safe limits, the device will automatically engage protection measures to keep your batteries and the tester safe.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/vd0uzy-jp.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Diagnostic \u0026 Programming Tools\", \"item\": \"https:\/\/vd0uzy-jp.myshopify.com\/collections\/diagnostic-programming-tools\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"2-Ch 18650 Battery Capacity Tester | MAh MWh \u0026 Internal Resistance\", \"item\": \"https:\/\/vd0uzy-jp.myshopify.com\/products\/18650-battery-capacity-tester-2-channel-mah-mwh-internal-resistance-meter\"}]}\u003c\/script\u003e","brand":"Peaceful Pleasures Health and Wellness","offers":[{"title":"1pcs","offer_id":53667897573689,"sku":"1005010611952252-1pcs","price":29.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/3689\/5801\/files\/S2f5904b7304543e787596589e163dd3bY.webp?v=1783032637","url":"https:\/\/peacefulpleasureswellness.com\/products\/18650-battery-capacity-tester-2-channel-mah-mwh-internal-resistance-meter","provider":"Peaceful Pleasures Health and Wellness","version":"1.0","type":"link"}