{"product_id":"4-x-18650-lithium-battery-holder-shield-module","title":"4 x 18650 Lithium Battery Holder Shield  Module","description":"\u003cmeta name=\"description\" content=\"Buy 4 x 18650 Lithium Battery Holder Shield Module online in India at best price from The Engineer Store, Bengaluru. Authentic product, 7-day warranty on manufacturing defects, fast delivery across India.\"\u003e\n\n\u003ch1\u003e4 x 18650 Lithium Battery Holder Shield Module\u003c\/h1\u003e\n\n\u003cp\u003eThe 4 x 18650 Lithium Battery Holder Shield Module is a compact power management PCB designed to safely house and protect four 18650 lithium-ion cells in series or parallel configurations with integrated protection circuitry. Professional electronics engineers, IoT developers, and roboticists use this module to build reliable battery packs for high-drain applications requiring 3.7V to 14.8V output depending on cell arrangement. This product solves the critical problem of battery safety management, preventing over-charge, over-discharge, and short-circuit conditions that could damage expensive equipment or create fire hazards in portable power systems.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe 4 x 18650 Lithium Battery Holder Shield Module integrates a dual-layer design combining mechanical battery retention with electronic protection. The holder features spring-loaded contact pins precision-engineered to maintain consistent electrical connection across all four cell positions, ensuring uniform current distribution and preventing voltage imbalance during charge and discharge cycles. The integrated protection circuit monitors individual cell voltage levels in real-time, automatically disconnecting the load when any cell drops below 2.5V or exceeds 4.2V, effectively extending battery lifespan by preventing deep discharge and overcharge conditions that degrade lithium-ion chemistry.\u003c\/p\u003e\n\n\u003cp\u003eThe shield module incorporates a compact PCB footprint measuring approximately 75mm x 45mm, making it ideal for space-constrained applications like portable power banks, LED flashlights, and wireless sensor nodes. The protection IC typically features a response time under 100 milliseconds for fault detection, with current handling capacity up to 10A continuous discharge. The module includes both series and parallel configuration options through jumper selectable pins, allowing users to customize output voltage from 3.7V single-cell mode up to 14.8V quad-series configuration, while maintaining safe operating parameters across all settings.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecification\u003c\/td\u003e\n\u003ctd\u003eDetails\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003e18650 Battery Holder with Protection Shield Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Capacity\u003c\/td\u003e\n\u003ctd\u003e4 x 18650 Lithium-Ion Cells\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e3.7V to 14.8V (configurable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Discharge Current\u003c\/td\u003e\n\u003ctd\u003e10A continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOver-Voltage Protection Threshold\u003c\/td\u003e\n\u003ctd\u003e4.2V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnder-Voltage Protection Threshold\u003c\/td\u003e\n\u003ctd\u003e2.5V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePCB Dimensions\u003c\/td\u003e\n\u003ctd\u003e75mm x 45mm x 18mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e45 grams\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection IC Response Time\u003c\/td\u003e\n\u003ctd\u003eLess than 100 milliseconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature Range\u003c\/td\u003e\n\u003ctd\u003e-10°C to 55°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eOriginal\/Authentic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e7 days on manufacturing defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping\u003c\/td\u003e\n\u003ctd\u003e1-5 days from Bengaluru\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDelivery\u003c\/td\u003e\n\u003ctd\u003e7-8 days across India\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupport\u003c\/td\u003e\n\u003ctd\u003e24\/7 via Email and WhatsApp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIntegrated Over-Charge Protection with 4.2V per-cell cutoff preventing lithium-ion thermal runaway and cell degradation\u003c\/li\u003e\n\u003cli\u003eOver-Discharge Protection at 2.5V threshold maintaining battery health and preventing permanent capacity loss from deep discharge\u003c\/li\u003e\n\u003cli\u003eShort-Circuit Protection with automatic load disconnection within 100ms protecting downstream electronics from damage\u003c\/li\u003e\n\u003cli\u003eDual Configuration Support allowing flexible series-parallel arrangement through jumper selection for custom voltage and capacity requirements\u003c\/li\u003e\n\u003cli\u003eSpring-Loaded Contact Design ensuring consistent electrical connection and minimizing contact resistance across all four cell positions\u003c\/li\u003e\n\u003cli\u003eLow Self-Discharge Rate with protection circuit drawing less than 50 microamps in standby mode\u003c\/li\u003e\n\u003cli\u003eWide Operating Temperature Range from -10°C to 55°C suitable for outdoor and industrial applications\u003c\/li\u003e\n\u003cli\u003eCompact PCB Design measuring 75mm x 45mm enabling integration into space-constrained portable devices\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePortable Power Banks and Mobile Charging Solutions where the module provides safe multi-cell battery management for 5V USB output regulators with 10A+ discharge capability\u003c\/li\u003e\n\u003cli\u003eWireless Sensor Networks and IoT Devices requiring long-term battery operation with automatic protection against over-discharge in remote monitoring applications\u003c\/li\u003e\n\u003cli\u003eLED Flashlights and Tactical Equipment where series configuration delivers 7.4V to 14.8V for high-brightness LED arrays with integrated current limiting\u003c\/li\u003e\n\u003cli\u003eRobotics and Drone Applications utilizing the module as core battery management system for autonomous vehicles requiring reliable power delivery under variable load conditions\u003c\/li\u003e\n\u003cli\u003eEmergency Backup Power Systems for critical electronics where over-charge protection prevents damage to sensitive equipment during extended charging periods\u003c\/li\u003e\n\u003cli\u003eHobby Electronics Projects including Arduino-based systems and custom electronic builds requiring safe multi-cell lithium battery integration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\u003cp\u003eInstallation begins by inserting four 18650 lithium-ion cells into the spring-loaded holders with positive terminals facing the marked positive contact points. Ensure cells are inserted straight without forcing, as the spring mechanism provides automatic contact pressure. Configure your desired voltage output by setting the jumper pins on the PCB to either series mode (14.8V maximum) or parallel mode (3.7V maximum capacity), following the silk-screen labels on the module. Connect your load through the output terminals, ensuring polarity matches your application requirements - the red wire carries positive voltage while the black wire provides ground reference.\u003c\/p\u003e\n\n\u003cp\u003eBefore connecting expensive electronics, verify output voltage using a multimeter to confirm correct cell installation and jumper configuration. The protection circuit automatically activates upon connection and begins monitoring cell voltages continuously. During operation, the module will automatically disconnect your load if any cell drops below 2.5V or exceeds 4.2V, indicated by loss of output voltage. When this occurs, remove the module from service and recharge the battery pack using a proper lithium-ion charger compatible with your configured voltage setting. Never attempt to bypass protection circuits or modify the PCB, as this eliminates safety features designed to prevent battery failure and fire hazards.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this module with different battery chemistries like NiMH or LiFePO4 cells?\u003c\/summary\u003e\n\u003cp\u003eThis module is specifically designed for 18650 lithium-ion cells with 3.7V nominal voltage per cell. The protection thresholds are calibrated for lithium-ion chemistry with 4.2V maximum and 2.5V minimum per cell. Using NiMH cells (1.2V nominal) or LiFePO4 cells (3.2V nominal) will cause incorrect protection triggering and potential damage. Always use authentic 18650 lithium-ion cells rated for your intended discharge current.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between series and parallel configuration, and which should I choose?\u003c\/summary\u003e\n\u003cp\u003eSeries configuration connects cells positive-to-negative, multiplying voltage while maintaining capacity. Four cells in series deliver 14.8V nominal with the same milliamp-hour rating as individual cells. Parallel configuration connects all positive terminals together and all negative terminals together, maintaining 3.7V voltage while multiplying capacity fourfold. Choose series for applications needing higher voltage like power tools or LED arrays, and parallel for applications needing extended runtime at standard voltage like portable chargers.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I know if the protection circuit is functioning correctly?\u003c\/summary\u003e\n\u003cp\u003eTest the module by measuring output voltage with a multimeter when fully charged cells are installed - you should read approximately 14.8V for series or 3.7V for parallel configuration. Gradually discharge the pack using a resistive load while monitoring voltage. When the lowest cell reaches 2.5V, output voltage should suddenly drop to zero, indicating protection activation. If output remains present below this threshold, the protection IC may be faulty and the module should not be used with sensitive electronics.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I charge this module while it is connected to my device?\u003c\/summary\u003e\n\u003cp\u003eYes, the module is designed for simultaneous charging and discharging through separate charge and discharge ports. Connect your charger to the charging terminals and your load to the discharge terminals - the protection circuit manages both operations safely. However, avoid rapid charge-discharge cycling as this generates heat and accelerates battery aging. For optimal lifespan, charge the module fully before disconnecting from your device, then use it until the protection circuit activates.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhen will I receive my order?\u003c\/summary\u003e\n\u003cp\u003eOrders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is your return and warranty policy?\u003c\/summary\u003e\n\u003cp\u003eWe offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre bulk discounts available?\u003c\/summary\u003e\n\u003cp\u003eYes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eWhy Buy from The Engineer Store\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Products: Sourced directly from authorized distributors with authentication\u003c\/li\u003e\n\u003cli\u003eExpert Team: Our technical team validates every product before listing\u003c\/li\u003e\n\u003cli\u003eFast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse\u003c\/li\u003e\n\u003cli\u003ePan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata\u003c\/li\u003e\n\u003cli\u003ePayment Options: COD, UPI, credit\/debit cards, net banking, EMI available\u003c\/li\u003e\n\u003cli\u003eTechnical Support: 24\/7 expert guidance via email and WhatsApp\u003c\/li\u003e\n\u003cli\u003eReturns: 7-day return policy on manufacturing defects only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuy 4 x 18650 Lithium Battery Holder Shield Module Online in India\u003c\/h2\u003e\n\u003cp\u003ePurchase the \u003cstrong\u003e4 x 18650 Lithium Battery Holder Shield Module\u003c\/strong\u003e online at \u003ca href=\"https:\/\/theengineerstore.in\"\u003eThe Engineer Store\u003c\/a\u003e, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on \u003cstrong\u003e4 x 18650 Lithium Battery Holder Shield Module\u003c\/strong\u003e with fast shipping and expert support.\u003c\/p\u003e\n\u003cp\u003eOur team in Bengaluru is available 24\/7 to support your journey from product selection to project completion.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":43774909448355,"sku":"TES-EV8103991","price":932.92,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/4479\/7091\/products\/4_x_18650_lithium_battery_holder_shield_module_1.jpg?v=1701091875","url":"https:\/\/www.theengineerstore.in\/zh-hant\/products\/4-x-18650-lithium-battery-holder-shield-module","provider":"The Engineer Store","version":"1.0","type":"link"}