{"product_id":"cnhl-5000mah-14-4v-4s-21700-li-ion-battery-xt90","title":"CNHL Long Range Series 5000mAh 14.4V 4S 21700 Li-ion Battery with XT90 Plug","description":"\u003cp style=\"font-size:16px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003e\u003cstrong\u003eThe CNHL Long Range Series 5000mAh 14.4V 4S1P 21700 Li-ion battery combines four BAK 50D cells into a compact 72Wh power system for efficient RC airplanes, fixed-wing aircraft and UAV platforms using XT90.\u003c\/strong\u003e Built around the 50D cell platform, this battery is designed to balance stored energy with usable power headroom for aircraft that prioritize endurance without moving entirely toward an energy-only cell design.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eAt approximately 296.5g for the pictured production sample, the finished battery delivers roughly \u003cstrong\u003e243Wh\/kg of pack-level energy density\u003c\/strong\u003e, including the pack assembly, XT90 connector, 12AWG power leads and balance wiring.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0;color:#333;\"\u003eThe XT90 configuration is positioned primarily toward fixed-wing RC airplanes and UAV systems already built around the XT90 connector ecosystem. XT90 does not make the underlying 50D cells more powerful than the corresponding XT60 version; connector choice should follow the aircraft installation and electrical system.\u003c\/p\u003e\n\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eQuick Battery Fit \u0026amp; Performance Check\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:14px 0 18px;font-size:14px;line-height:1.55;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"width:34%;background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eBattery Type\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003e21700 Li-ion battery pack\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eCell Platform\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003eBAK 50D\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eConfiguration\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003e4S1P\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eCapacity\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003e5000mAh\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eNominal Voltage\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003e14.4V\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eNominal Energy\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003e72Wh\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eApprox. Weight\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003eApprox. 296.5g\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eApprox. Pack Energy Density\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eApprox. 243Wh\/kg\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eMain Connector\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003eXT90\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003ePower Wire\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003e12AWG\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003ePerformance Direction\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003ePower + Energy Balance\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003ePrimary Applications\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003eRC airplanes, fixed-wing aircraft and efficient UAV systems\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eProduct Specifications\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:14px 0 18px;font-size:14px;line-height:1.55;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"width:34%;background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eSKU\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003eLI500104S70XT90\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eSeries\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003eCNHL Long Range Series\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eChemistry\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003eRechargeable Li-ion\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eCell Format\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003e21700\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eCell Model\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003eBAK INR2170-50D\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eConfiguration\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003e4S1P \/ 4 cells\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eCapacity\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003e5000mAh\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eNominal Voltage\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003e14.4V\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eMaximum Charge Voltage\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003e16.8V (4.20V per cell)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eNominal Energy\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003e72Wh\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eMain Connector\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003eXT90\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eMain Power Wire\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003e12AWG\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eApprox. Dimensions\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003e73.5 × 43 × 43mm (2.89 × 1.69 × 1.69in)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eApprox. Weight\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003e296.5g \/ 0.65lb\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eApprox. Pack Energy Density\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003eApprox. 243Wh\/kg\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003e72Wh 4S1P Battery for Efficient Fixed-Wing Aircraft\u003c\/h2\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eFour BAK 50D cells are connected in series to create a \u003cstrong\u003e14.4V nominal, 5000mAh and 72Wh 4S1P battery\u003c\/strong\u003e. This four-cell architecture keeps the battery relatively compact while providing substantial stored energy for aircraft that can cruise efficiently on a compatible 4S power system.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eFor fixed-wing applications, the benefit of Li-ion becomes especially relevant once the aircraft reaches efficient cruise. The battery can then devote a greater share of its stored watt-hours to useful flight time rather than repeatedly supporting extreme burst loads.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0;color:#333;\"\u003eLaunch, takeoff, climb and full-throttle current still need to remain within the electrical and thermal limits of the finished battery.\u003c\/p\u003e\n\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eApprox. 243Wh\/kg Finished-Pack Energy Density\u003c\/h2\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eThe pictured production sample weighs approximately \u003cstrong\u003e296.5g\u003c\/strong\u003e while storing a nominal \u003cstrong\u003e72Wh\u003c\/strong\u003e. This corresponds to approximately \u003cstrong\u003e243Wh\/kg of finished-pack gravimetric energy density\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eThis figure includes the complete battery assembly shown here: four 21700 cells, pack wrapping, XT90 connector, 12AWG power leads and balance wiring. It therefore represents the energy-to-weight ratio of the battery an aircraft actually carries rather than the cell alone.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0;color:#333;\"\u003eActual endurance depends on aircraft efficiency, propulsion setup, payload, wind, flying style and usable depth of discharge.\u003c\/p\u003e\n\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eBAK 50D Power + Energy Balance\u003c\/h2\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eThe BAK 50D is the \u003cstrong\u003ePower + Energy Balance\u003c\/strong\u003e cell platform in the CNHL 21700 Long Range family. Each cell provides 5000mAh rated capacity and 18Wh rated energy while offering more usable current headroom than a cell designed primarily around maximum possible capacity.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eThis characteristic is especially useful in fixed-wing aircraft because the power profile can vary substantially during a flight. Efficient cruise may require relatively modest current, while takeoff, launch, climbing or go-arounds can create significantly higher loads.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0;color:#333;\"\u003eThe 50D therefore provides a useful middle ground for airplane builders who want long-range Li-ion energy without moving as far toward an energy-only cell direction.\u003c\/p\u003e\n\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eBAK 50D Discharge Capability in This 4S1P Pack\u003c\/h2\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eThe underlying BAK 50D cell specification includes a maximum discharge condition of up to \u003cstrong\u003e5C without a temperature cutoff\u003c\/strong\u003e, while an \u003cstrong\u003e8C condition requires the specified 70°C temperature-cutoff control\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eFor a 5000mAh cell, these correspond numerically to 25A and 40A cell-level conditions. The 40A value should not be interpreted as an unrestricted continuous rating for this finished battery.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0;color:#333;\"\u003eFinished-pack performance also depends on cell temperature, internal connections, wire, connector, cooling, load duration and ambient conditions. Aircraft selection should be based on actual measured propulsion current and thermal behavior.\u003c\/p\u003e\n\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003e4S Li-ion Battery for RC Airplanes\u003c\/h2\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eThis XT90 version is positioned primarily for \u003cstrong\u003eefficient 4S RC airplanes\u003c\/strong\u003e where longer flight duration and stored energy are important. Suitable application directions include gliders, sailplanes, utility aircraft, FPV-capable fixed-wing models and other endurance-oriented airplanes.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eBefore replacing an existing 4S LiPo with this Li-ion battery, compare the actual voltage range, propulsion current, battery weight, dimensions, center of gravity and charging requirements. Sharing the same 4S designation does not make the two chemistries automatically interchangeable.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0;color:#333;\"\u003eBrowse other endurance-oriented options in the \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/li-ion-airplane-batteries\" style=\"color:#E60073;text-decoration:underline;font-weight:700;\"\u003eCNHL Li-ion batteries for RC airplanes and fixed-wing aircraft\u003c\/a\u003e collection.\u003c\/p\u003e\n\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eA Strong Battery Direction for Gliders and Sailplanes\u003c\/h2\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eElectric gliders and sailplanes can be especially compatible with energy-focused battery strategies because the motor may only be used intermittently for launch or climbing, while much of the flight is spent gliding or thermalling at very low propulsion power.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eA compact 72Wh 4S1P battery can therefore provide substantial onboard energy without moving directly to the additional cell count and weight of a 4S2P battery.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0;color:#333;\"\u003eMotor-on climb current, battery placement and final CG must still be verified because these can determine whether a particular glider is suitable for this Li-ion configuration.\u003c\/p\u003e\n\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003e4S Li-ion Battery for Fixed-Wing UAVs\u003c\/h2\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eThe same 4S1P architecture can also suit efficient fixed-wing UAV systems where mission endurance is more important than extreme burst performance. Mapping, inspection and other long-duration aircraft can benefit when normal cruise current remains moderate and the aircraft is designed around the available 72Wh energy budget.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0;color:#333;\"\u003eFor additional mission-oriented battery configurations, explore the \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/li-ion-uav-batteries\" style=\"color:#E60073;text-decoration:underline;font-weight:700;\"\u003eCNHL Li-ion UAV battery range\u003c\/a\u003e.\u003c\/p\u003e\n\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eXT90 Connector with 12AWG Power Leads\u003c\/h2\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eThis SKU uses an \u003cstrong\u003eXT90 main connector with 12AWG power leads\u003c\/strong\u003e, making it a natural choice for fixed-wing and UAV systems already standardized around XT90.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eThe XT90 connector should not be interpreted as making this battery electrically stronger than the corresponding XT60 version. Both packs use the same BAK 50D cells and the same 4S1P architecture.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0;color:#333;\"\u003e\u003cstrong\u003eChoose XT60 or XT90 according to the aircraft's connector ecosystem and electrical installation, not as a battery-performance upgrade.\u003c\/strong\u003e\u003c\/p\u003e\n\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eCompact 73.5 × 43 × 43mm Battery Size\u003c\/h2\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eThe finished battery measures approximately \u003cstrong\u003e73.5 × 43 × 43mm\u003c\/strong\u003e, keeping the 4S1P pack relatively compact compared with higher-capacity 4S2P Li-ion batteries.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0;color:#333;\"\u003eBefore purchase, measure the usable battery compartment and allow additional clearance for the XT90 connector, 12AWG wires, balance lead, mounting straps and airflow. For fixed-wing use, always recheck center of gravity after installation.\u003c\/p\u003e\n\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003e5000mAh 4S1P vs 10000mAh 4S2P\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:14px 0 18px;font-size:14px;line-height:1.55;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"width:25%;background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eConfiguration\u003c\/td\u003e\n      \u003ctd style=\"width:34%;background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eMain Advantage\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eFixed-Wing Direction\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003e5000mAh 4S1P\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003eLower cell count, compact dimensions and lower pack mass\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003eWeight-sensitive RC airplanes, gliders and smaller endurance aircraft\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003e10000mAh 4S2P\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003eTwice the parallel capacity and greater current sharing\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;color:#333;padding:10px;border:1px solid #ddd;\"\u003eLarger fixed-wing aircraft and UAVs capable of carrying additional battery mass\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0;color:#333;\"\u003eThe larger battery is not automatically the better endurance choice. Useful flight-time improvement depends on whether the aircraft can carry the additional cells without losing too much efficiency.\u003c\/p\u003e\n\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003ePart of the CNHL 4S 21700 Long Range Platform\u003c\/h2\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eThis battery belongs to the \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/4s-21700-li-ion-batteries\" style=\"color:#E60073;text-decoration:underline;font-weight:700;\"\u003eCNHL 4S 21700 Li-ion battery range\u003c\/a\u003e, where customers can compare 5000mAh, 6350mAh, 10000mAh and 12700mAh options across different cell platforms and connector configurations.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eIt is also part of the \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/cnhl-long-range-series\" style=\"color:#E60073;text-decoration:underline;font-weight:700;\"\u003eCNHL Long Range Series\u003c\/a\u003e, an endurance-focused battery family for FPV, RC airplane and UAV applications.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0;color:#333;\"\u003eFor wider comparison, browse all \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/21700-li-ion-batteries\" style=\"color:#E60073;text-decoration:underline;font-weight:700;\"\u003eCNHL 21700 Li-ion batteries\u003c\/a\u003e or the complete \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/li-ion-batteries\" style=\"color:#E60073;text-decoration:underline;font-weight:700;\"\u003eCNHL Li-ion battery range\u003c\/a\u003e.\u003c\/p\u003e\n\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eCharging and Battery Safety\u003c\/h2\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eUse a charger and charging mode appropriate for Li-ion chemistry. The BAK 50D cells use a maximum charge voltage of \u003cstrong\u003e4.20V per cell, or 16.8V for this complete 4S battery\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eDo not assume that a 4S Li-ion battery and a 4S LiPo or LiHV battery use identical charging or low-voltage settings. Confirm chemistry, voltage limits and battery-monitoring settings before use.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eInspect the battery, wiring, XT90 connector and wrapping before charging or flight. Do not use a battery that is damaged, excessively hot or electrically abnormal, and never exceed the specified voltage, current or temperature limits.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0;color:#333;\"\u003eDuring initial aircraft setup, monitor propulsion current and battery temperature to confirm that the finished system remains within an appropriate operating range.\u003c\/p\u003e\n\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eFAQ: CNHL 5000mAh 4S 21700 Li-ion Battery with XT90\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eWhat cells are used in this battery?\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eThe battery uses four BAK INR2170-50D 5000mAh 21700 Li-ion cells in a 4S1P configuration.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eHow much energy does this 4S battery store?\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eIt provides 72Wh of nominal stored energy from a 14.4V nominal voltage and 5000mAh capacity.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eWhat is the finished-pack energy density?\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eBased on the pictured sample weight of approximately 296.5g and 72Wh nominal energy, calculated finished-pack gravimetric energy density is approximately 243Wh\/kg.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eIs this battery intended for RC airplanes?\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eYes. Efficient fixed-wing RC airplanes are the primary application direction for this XT90 configuration, provided voltage, current demand, dimensions, weight and center of gravity are compatible with the model.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eCan it be used in a fixed-wing UAV?\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eYes, it can suit endurance-oriented fixed-wing UAV systems when the aircraft is designed around a compatible 4S voltage platform and the propulsion current remains within the battery's electrical and thermal limits.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eIs the XT90 version more powerful than the XT60 version?\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eNo. Both versions use the same BAK 50D cells and 4S1P architecture. XT90 changes the connector ecosystem and slightly affects finished weight, but it does not increase the fundamental capability of the cells.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eWhat are the dimensions and weight?\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eThe pictured battery measures approximately 73.5 × 43 × 43mm and weighs approximately 296.5g.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eWhat connector and wire does this SKU use?\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eLI500104S70XT90 uses an XT90 main connector with 12AWG power leads.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eCan this replace a 4S LiPo airplane battery?\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eDo not assume direct compatibility based only on the 4S label and XT90 connector. Compare operating voltage, current requirement, battery dimensions, weight, CG, charger settings and low-voltage behavior before changing battery chemistry.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eWhat is the maximum charge voltage?\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0;color:#333;\"\u003eThe maximum charge voltage is 16.8V for the complete 4S battery, corresponding to 4.20V per cell.\u003c\/p\u003e","brand":"ChinaHobbyLine","offers":[{"title":"US","offer_id":50390720086230,"sku":"LI500104S70XT90 US","price":69.99,"currency_code":"USD","in_stock":false},{"title":"Global","offer_id":50390720184534,"sku":"LI500104S70XT90 GL","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/1_fc4f126b-c1ed-4aa2-8f0d-71d4509c78fd.jpg?v=1789984619","url":"https:\/\/chinahobbyline.com\/he\/products\/cnhl-5000mah-14-4v-4s-21700-li-ion-battery-xt90","provider":"ChinaHobbyLine","version":"1.0","type":"link"}