{"product_id":"lithium-battery-capacity-indicator-module-1s-8s-3-7v-4-2v-li-ion","title":"1–8S Li-ion Battery Capacity Indicator Module 3.7V\/4.2V","description":"\u003ch2\u003e1–8S Lithium Battery Capacity Indicator Module – Accurate 3.7V\/4.2V Power Display\u003c\/h2\u003e\n\u003cp\u003eKeep your lithium battery packs performing at their best with this compact and easy-to-read \u003cstrong\u003eBattery Capacity Indicator Module\u003c\/strong\u003e. Compatible with 1S through 8S single-cell Li-ion and LiPo configurations (3.7V nominal, 4.2V max per cell), this module gives you an instant, clear visual readout of remaining charge — perfect for electric vehicles, RC models, DIY power packs, e-bikes, and more.\u003c\/p\u003e\n\n\u003cp\u003eWhether you're building a custom battery bank or monitoring power on the go, this tester takes the guesswork out of knowing exactly how much juice you have left.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Compatibility:\u003c\/strong\u003e Supports 1S, 2S, 3S, 4S, and up to 8S single 3.7V lithium cell configurations\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAccurate Display:\u003c\/strong\u003e Clear LED\/digital readout showing real-time battery capacity and voltage (up to 4.2V per cell)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Lightweight:\u003c\/strong\u003e Small form factor makes it easy to integrate into any build or mount on your device\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Li-ion \/ LiPo Support:\u003c\/strong\u003e Works with standard lithium-ion and lithium polymer battery chemistries\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy to Use:\u003c\/strong\u003e Simple plug-and-read operation — no complex setup required\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIdeal for Electric Vehicles:\u003c\/strong\u003e Designed as a reliable power tester for e-bikes, electric scooters, RC vehicles, and DIY battery packs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Built to withstand regular use in workshop and field environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Cells:\u003c\/strong\u003e 1S \/ 2S \/ 3S \/ 4S (single cell, up to 8S configurations)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNominal Cell Voltage:\u003c\/strong\u003e 3.7V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax Cell Voltage:\u003c\/strong\u003e 4.2V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery Chemistry:\u003c\/strong\u003e Li-ion \/ LiPo\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisplay Type:\u003c\/strong\u003e LED Capacity Indicator\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Electric vehicles, RC models, DIY power banks, e-bikes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/360-bicycle-chain-cleaner-tool-gear-cleaning-kit\"\u003e360° Bicycle Chain Cleaner Tool | Bike Gear Cleaning Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.energystar.gov\/products\" target=\"_blank\" rel=\"noopener\"\u003eENERGY STAR product efficiency guidance\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What battery types is this lithium battery capacity indicator module compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This module is compatible with standard Li-ion (lithium-ion) and LiPo (lithium polymer) single-cell batteries with a nominal voltage of 3.7V and a maximum charge voltage of 4.2V. It supports 1S, 2S, 3S, 4S, and up to 8S cell configurations, making it versatile for a wide range of applications including electric vehicles, RC models, and DIY battery packs.\u003c\/p\u003e\n\u003ch4\u003eQ: How do I use this battery power tester?\u003c\/h4\u003e\n\u003cp\u003eA: Simply connect the indicator module to your lithium battery pack's balance or power leads. The LED display will immediately show the current battery capacity and voltage level — no calibration or programming required. It's a plug-and-read solution designed for quick and convenient monitoring.\u003c\/p\u003e\n\u003ch4\u003eQ: Can I use this module for my e-bike or electric scooter battery?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! This indicator module is specifically designed to support electric vehicle battery packs. As long as your e-bike or scooter uses a Li-ion or LiPo battery within the supported voltage range (1S–8S, 3.7V–4.2V per cell), this tester will provide an accurate capacity readout to help you monitor charge levels on the go.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this module suitable for DIY battery projects?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. Its compact size and straightforward connectivity make it an excellent addition to custom battery builds, DIY power banks, and hobbyist electronics projects. It integrates easily into most enclosures and requires no extra components to function.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What battery types is this lithium battery capacity indicator module compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This module is compatible with standard Li-ion (lithium-ion) and LiPo (lithium polymer) single-cell batteries with a nominal voltage of 3.7V and a maximum charge voltage of 4.2V. 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