[12/24V MPPT with 99% Tracking Efficience] Given Innovation MPPT technology's high tracking efficiency of up to 99% and peak conversion efficiency of 98%, the Power Queen MPPT Charge Controller can track arrays' maximum power point to get the most power to charge the battery and loads. It improves the energy utilization ratio by 15%-20% when compared to conventional PWM controllers.[Intuitive LCD Display & Remote Monitoring] The Power Queen MPPT Controller includes an LCD screen and multiple LED indicators, and it’s intended to display information about system operation, customizable parameters, and error codes. It includes a Bluetooth adaptor with an RJ12 port and can be used with the integrated RS232 communication protocol to remotely monitor the real-time status of the solar panel, battery, and loads.[LiFePO4 Default Setting & Widely Use Range] The Power Queen 12/24V 30 Amp MPPT Charge Controller was conceived in response to the widespread demand from lithium battery users for a dedicated LiFePO4 battery controller. It's intended for LiFePO4 batteries, with a 12V LiFePO4 default setting, but it's also adaptable to Gel, Sealed, Flooded, and Lead-Acid batteries by manually setting it.[Solid Case Design & Built-in Multiple Protections] The utilization of a die-cast aluminum heat sink increases heat dissipation efficiency, which reduces power loss due to heat. And it can operate at full load in temperatures ranging from -31°F to 113°F. Over-voltage, over-power, short-circuit, reverse-connection, reverse-charging, and over-temperature protection are all built-in, ensuring total protection from the solar panels to the load terminal.[Complete Accessories Are Available in One Package] Power Queen MPPT Charge Controller provides the most comprehensive installing accessories for setting up a solar charge system. It saves you time in searching for the right accessories, allows you to complete the installation when you receive the package and gets ready for the solar power system. 

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[Product Model] 250A ANL Fuse, Rated Voltage: 32V (Compatible With 12V & 24V); Rated Amperage: 250A[Safety Protection] Power Queen 250A ANL fuse provides excellent safety protection for your system, preventing overcurrent damage to your controller, wire, inverter, and battery, ensuring your system can have a longer service life.[Reliable Material] Power Queen 250A ANL Fuse is made of copper alloy with gold plated surface, a durable and reliable material, with good heat resistance, melting resistance, and good conductivity.[Wide Compatibility] Power Queen 250A ANL Fuse applicable to multiple scenarios, widely used in motor-dom, electronic manufacturing, transportation, and industrial manufacturing.[Fuse Dimension] 82 x 20mm, applicable to M8 Terminal.

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[Larger 5248Wh Energy & 3.2kW Output Power] This 12.8V Power Queen LiFePO4 Battery has a larger 410Ah capacity, offering total energy 5248Wh. And, it is built in 250A BMS, supports max 250A continuous charge & discharge current, and max 3.2kW load power. Without complicated series-parallel installation steps and the extra cost of cables, this battery could meet your needs for longer runtime and higher energy.[Flexible Charging Methods & 4000+ Cycle Times] Power Queen 12.8V Lithium Iron Phosphate Battery supports charging via Solar Panels and Controller, Specialized LiFePO4 battery charger with DC output voltage of 14.2V-14.6V, and Generator (requires the addition of a DC-DC charger). It supports more than 4000-15000 cycle times(based on different DOD from 60%-100%) and has a lifetime of up to 10 years.[2X Safety from "C" and "B"] Cells of Grade A provide our 12.8V 410Ah Lithium Battery with more powerful and more stable performance while better security. All Power Queen batteries are UL tested and CE, FCC, ROHS, PSE, and IP65 certified. Upgraded BMS protects the battery from common issues like Overcharge, Over current, Over-discharge, Short circuit, and Over temperature.[Max 83.96 kWh Expansion of Energy] Power Queen Lithium Battery support up to 4S4P extension, you can get a battery pack with a max of 51.2V 1640Ah and total energy of 83.96 kWh, could be widely used in solar systems, home energy storage, off-grid applications, and RV camping.[U.S. Based warehouses & 24hrs Timely Service] Power Queen Rechargeable Battery backs up its batteries with a 5-year warranty. Customers in the United States are expected to receive the battery within 2~5 working days due to our local warehouses in CA, TX, and GA. We provide a strong battery package, quick delivery as well as 24-hour timely customer support.Attention Please: This battery is NOT suitable to be used as a starter battery, golf cart battery, or for high-power applications such as water pumps, electric jacks, lifts, vacuum cleaners, four-wheel drive lawn mowers, etc., for more info please consult Power Queen: service@ipowerqueen.com

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[1/3 Lightweight | 100% Capacity Usage] Power Queen 12V 50Ah Lithium battery weighs only 11.57 lbs, it is 1/3 of a 50Ah lead-acid battery. Our LiFePO4 battery can charge/discharge fully at capacity.[50A BMS |2 Hours Fast Charging] Power Queen 12V 50Ah LiFePO4 battery builds in 50A BMS to protect from overcharging & discharging, over the current, short circuit, and over temp. 2 hours fully charged by a 25A charger.[10.24kWh Max. Energy Expansion] Power Queen 12V 50Ah battery supports max 4P4S connection to reach up to 10.24kWh (10.24kW), perfect for solar home systems, backup power, off-grid living, etc.[10-Years Lifetime] Power Queen LiFePO4 battery provides 4000+ cycles & a 10-year lifetime, it can be fully charged without risk and keeps the capacity with a low self-discharge rate even if long-time storage.[Perfect For Various Applications] Power Queen 12V 50Ah Lithium Battery can be fully discharged without risk and loss of capacity. It is the ideal battery for various residential & commercial power applications.Attention Please: This battery is NOT suitable to be used as a starter battery, golf cart battery, or for high-power applications such as water pumps, electric jacks, lifts, vacuum cleaners, four-wheel drive lawn mowers, etc., for more info please consult Power Queen: service@ipowerqueen.com

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[2x Larger Capacity & Power Supply] Power Queen 24V 200Ah LiFePO4 Battery has a 5.12kWh sufficient energy compared with a basic 100Ah battery, combining double usable energy into a single battery, allowing you to enjoy more leisure time alongside an RV trip. It’s also a perfect choice for home backup energy storage to build your solar system with simple installation and no worry about battery connection. Power Queen 24V 200Ah battery matches the BCI Group 6D battery box.[Extended 200A BMS & Automotive Grade A Cells] With a 200A BMS which can power max. 5.12kW power draws at the same time, and it can protect the LiFePO4 Battery from the most common causes of battery failure, such as overcharge, over-discharge, over-current, and short circuit. We adopt automotive LiFePO4 cells with higher energy density in our battery pack, powerful configuration safeguards the battery with all-around protection.[Born for Space Saving & Longer Lasting] Power Queen 24V 200Ah Battery provides the same capacity as 4x12V 100Ah batteries connected in 2P2S configuration, but with almost 40% space-saving, with fewer footprints and makes it easy to move for RV, camping, and off-grid applications. Own a 5.12kWh usable energy can enjoy a nearly 5-day off-grid experience based on the daily consumption of an average of 1kWh.[Max. 40.96kWh Capacity Expansion] Power Queen 24V 200Ah Lithium Battery supports up to 2 in series and 4 in parallel (Max 2S4P) to get a 51.2V 800Ah battery system, with 40.96kWh energy could be widely used for solar homes emergency backup power systems, security or surveillance systems, off-grid application, and RV camper, as well as sailboat energy storage.[U.S. Based warehouses & 24hrs Timely Service] Power Queen Rechargeable Battery backs up its batteries with a 5-year warranty. Customers in the United States are expected to receive the battery within 2~5 working days due to our local warehouses in CA, TX, and GA. We provide a strong battery package, quick delivery as well as 24-hour timely customer support.Attention Please: This battery is NOT suitable to be used as a starter battery, golf cart battery, or for high-power applications such as water pumps, electric jacks, lifts, vacuum cleaners, four-wheel drive lawn mowers, etc., for more info please consult Power Queen: service@ipowerqueen.com

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[Suitable for Electric Wheelchairs & Small Size: Group U1] The 12V 45Ah Group U1 Lithium Electric Wheelchair Battery is designed to fit the BCI Group U1 size and weighs only 9.28 lbs (L7.64*W5.2*H6.69inch). It is approximately 69.07% lighter than the standard 12V 35Ah lead-acid battery, which typically weighs 30 lbs. This Battery offers a straightforward replacement for bulky Group U1 lead-acid batteries, significantly reducing the weight burden on your electric wheelchair or mobility scooter. To install, just remove the original batteries and put the new batteries in its spot.[Self-developed 45A BMS & Low-Temp Cut-off Protection] The Group U1 Lithium Wheelchair Battery features an upgraded 45A BMS that provides comprehensive protection against over-charging, over-discharging, over-current, short circuit and high-temp. The advanced BMS also includes low-temp cut-off, moisture, and salt spray protection for safety in harsh conditions. Overload protection prevents damage caused by excessive current, while the self-recovery function ensures that the battery automatically returns to normal operation 30S after overload protection.[EV Grade-A Cells & Up to 9216Wh Capacity] The Group U1 lithium wheelchair battery offers IP65 dust and water resistance along with EV Grade-A cells for outstanding performance and protection. It supports both series and parallel configurations for devices of the same brand and model, with a maximum capacity of 9216Wh (4P4S) and a peak power output of 9216W. Lightweight and high-energy, it’s ideal for electric wheelchairs, mobility scooters, home backup systems, camping, trolling motors (20-30 lb), camping, fish finders, dashboards,etc.[10-Year Lifespan & Max. 325A/1s Discharge] Power Queen battery lasts up to 10 years and supports deep cycling: over 4,000 cycles at 100% DOD, over 6,000 cycles at 80% DOD, and over 15,000 cycles at 60% DOD. Compared to the 12V 35Ah Group U1 lead-acid battery, our battery provides about 2.7 times the usable capacity at a 1C discharge rate. It supports 45A continuous discharge and a maximum 325A/1s discharge. Recommended charging methods include using a 14.6V LiFePO4 charger, solar panel with MPPT (recommend ≥200W), alternator +DC-DC, or generator with AC-DC charger.[5-Year Warranty & Professional Safety Certification] Power Queen offers a 5-year warranty and 24-hour one-on-one professional support for all our batteries. They are UL tested and certified by FCC, CE, and RoHS for the highest safety standards. For any questions, feel free to reach out to us. We ship from California, Texas, and Georgia, typically delivering within 2-5 business days, though times may vary. Please note, the battery is not suitable for starting applications or golf carts.Attention Please: This battery is NOT suitable to be used as a starter battery, golf cart battery, or for high-power applications such as water pumps, electric jacks, lifts, vacuum cleaners, four-wheel drive lawn mowers, etc., for more info please consult Power Queen: service@ipowerqueen.com

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[Specifically Designed For LiFePO4 Battery] Power Queen 29.2V 20Amp LiFePO4 Charger is uniquely designed for a 24V LiFePO4 battery, adopting the 2-stage constant current/constant voltage (CC/CV) charge technology which enables full charge of the battery to 100% capacity automatically. Besides, the charger has an exclusive pre-charge mode which is designed for activating the 0V battery protected by BMS. Simply connect the charger to the battery to initiate a restart which sets you worry-free.[Saving 1/2 The Charging Time] With input voltage from 100V-240V, which maintains a stable voltage accuracy at ±0.2V (approx.29V to 29.4V) and affords output constant current at 19A to 21A. It enables charging a 24V battery pack instead of charging a single 12V battery individually one by one. Only needs 5 hours of fast charging time to fully charge a 24V 100Ah battery pack compared with a 12V 20amp charger which needs 5hrs+5hrs=10hrs to fully charge it. Save half charging time and disassembly steps.[Easy Operation & Intuitive LED Light] Just an easy connection to the LiFePO4 battery by using the included battery alligator clips. Then plug in the input cable to the charger and connect it to the input power, the battery will start charging your battery. The LED light provides visual charging state feedback and diagnostic information and displays the charging status.[Reliability & Multiple Protection] The advanced circuit design and strict production process according to the IS09001:2008 quality management system make the charger more reliable and with long service life. Providing multi-protection from over-temperature, output short-circuits, output over-voltage, and reverse polarity connection, to ensure safe use.[Professional Warranty Service & Faster Delivery] As a professional seller, we contribute to providing higher quality products and better service to our customers all the time, so we promise a 2-year warranty and quick response customer support within 24 hours. And the local warehouse in the US makes the delivery time faster.

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[Perfect for Wheelchairs & BCI Group 22NF] Ideal for heavy-duty electric wheelchairs and mobility scooters, this 12V 65Ah Group 22NF Wheelchair lithium battery directly replaces lead-acid batteries—simply remove the original batteries, and put the new batteries in the battery compartment. The Group 22NF Lithium Battery weighs just 14 lb and measures L9.02*W5.43*H8.19 inch, meeting BCI Group 22NF minimum standards. It is about 72% lighter than a standard 12V 75Ah lead-acid battery weighing 50 lb.[Superior 65A BMS & Low-temp Cut-off Protection] The Group 22NF wheelchair Lithium Battery features an upgraded 65A BMS that offers comprehensive protection against over-charging, over-discharging, over-current, short circuit, high-temp, and low-temp. The advanced BMS also includes low-temp cut-off protection: it automatically cut off below 32°F, resumes charging above 41°F and discharging cut-off below -4°F. This battery is designed to resist moisture and salt spray, making it ideal for heavy-duty electric wheelchairs, mobility scooters, trolling motors, fish finders, and harsh water conditions.[EV Class A Cells & High Energy Capacity] With IP65 dust and water resistance and EV Class A Cells, this 12V 65Ah wheelchair lithium battery delivers superior energy and protection. The maximum system configuration is 4P4S, with a total energy capacity of up to 13,312 Wh. Its combination of high energy density and lightweight design makes it versatile for various applications, including heavy-duty electric wheelchairs, mobility scooters, clamps, fish finders, and 30-70lb trolling motors. The battery handles surge discharge currents up to 325A@1S, accommodating high thrust demands.[10-Year Lifespan with Deep Cycle Capability] Our battery offers a lifespan of up to 10 years and supports deep cycling: over 4,000 cycles at 100% DOD, over 6,000 cycles at 80% DOD, and over 15,000 cycles at 60% DOD. The 12V 65Ah Group 22NF Wheelchair Lithium Battery has a maximum continuous charge/discharge current of 65A (1C). Recommended charging methods include using a 14.6V LiFePO4 charger, solar panel with MPPT (recommend ≥300W), alternator +DC-DC, or generator with AC-DC charger. [5-Year Warranty & Professional Support] Power Queen provides a 5-year warranty and 24-hour one-on-one professional support for all our batteries. For any issues, please contact us at any time. We ship from CA, TX, and GA, with delivery generally in 2-5 business days, though actual times may vary.Attention Please: This battery is NOT suitable to be used as a starter battery, golf cart battery, or for high-power applications such as water pumps, electric jacks, lifts, vacuum cleaners, four-wheel drive lawn mowers, etc., for more info please consult Power Queen: service@ipowerqueen.com

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[5 Hours Fast Charger For Larger Capacity LiFePo4 Battery] Power Queen 14.6V 40Amp LiFePO4 battery charger is rated at a 40 amp large output current. It adopts the 2-stage constant current/constant voltage (CC/CV) charge technology, which can extend the battery life to a large extent. Our charger enables the automatic full charging of a 12V 200Ah lithium battery in around 5 hours, which is optimal for the larger capacity marine battery & deep cycle battery and can solve power needs easily.[4 Protection Function & Reliability] Adopt the advanced circuit design and strict production process according to the IS09001:2008 quality management system, which provides multi-protection from over-temperature, output short-circuits, output over-voltage, and reverse polarity connection. Besides that, it makes the Power Queen lifepo4 battery charger a reliable and high-quality product to ensure secure use during battery charging.[0V Charging Mode For Dead Battery] Power Queen 14.6V 40Amp lithium battery charger has an exclusive pre-charge mode that can reset or "wake up" the battery protected by BMS. Simply connect the charger to the battery to initiate a restart which can charge the battery from 0V which can enlarge the battery lifespan.[Intuitive Chargering status Display & 4 Steps Easy Operation] An intuitive LED indicator enables displaying the real value of the battery voltage, charging current, and output capacity while charging. Included detachable wire lugs with ring terminals to make it easy and safe to connect with the battery. Simply install the lug on the battery, it will auto-start to charge the battery and auto-stop when full, no need to worry about the hazards of the battery overcharging.[Complete Accessories Are Available in One Package] Power Queen MPPT Charge Controller provides the most comprehensive installing accessories for setting up a solar charge system. It saves you time in searching for the right accessories, allows you to complete the installation when you receive the package and gets ready for the solar power system. 

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[5 Hours Fast Charger For Larger Capacity LiFePo4 Battery] Power Queen 14.6V 40Amp LiFePO4 battery charger is rated at a 40 amp large output current, realizing the rapid battery charging. It just takes approximately 5hrs/7.5hrs/10hrs to fully charge the 12V 200Ah battery, 12V 300Ah battery, 12V 400Ah battery system.[4 Protection Function & Reliability] Adopt the advanced circuit design and strict production process according to the IS09001:2008 quality management system, which provides multi-protection from over-temperature, output short-circuits, output over-voltage, and reverse polarity connection. This comprehensive safety protection guarantees secure battery charging.[0V Charging Mode For Dead Battery] The charger has an exclusive pre-charge mode that can "wake up" the slept batteries. Simply connect the charger to the battery to restore the battery to the normal voltage.[Intuitive Chargering status Display & 4 Steps Easy Operation] With an LED charging indicator, the charger shows its real-time operational status, which includes standby, in-charge, fully charged, and charging anomalies. This enables you to monitor the real-time status of the device.[Complete Accessories Are Available in One Package] Throughout the charging process, the charger smoothly alternates among three charging modes: Pre-Charge Mode, Constant Current (CC), and Constant Voltage (CV), guaranteeing a secure and steady charging experience.

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[5 Hours Fast Charging of 50Ah LiFePO4 Battery] Power Queen 12V 50Ah LiFePO4 battery can be efficiently fully charged by 14.6V 10A LiFePO4 battery charger in around 5 hours from 0 to 100% capacity. Our LiFePO4 battery charger is specifically made for LiFePO4 batteries, implementing the special 2-stage constant current/constant voltage (CC/CV) charge algorithm with smart LED indicators. It would help our LiFePO4 battery maximize performance at a 100% capacity status. [1/3 Impeccably Lightweight & Wide Application] The weight of Power Queen is a 12V 50Ah LiFPO4 battery with 14.6V 10A LiFPO4 battery charger is only 11.57 lbs+3.53 lbs=15.1 lbs for one pack, which is 3 times lighter than a 50Ah lead-acid battery, easy to move and install. You could feel free to take our battery and charger on your RV/trailer trip, you don’t need to worry about the charging problem in camping. Not only this, our lightweight 50Ah LiFePO4 battery is also the best companion for kayaks and boats.[Automotive Grade Battery Cells & 50A BMS Protectio] Power Queen 12V 50Ah LiFePO4 batteries have exceptional quality as they are manufactured by Automotive Grade LiFePO4 Cells with higher energy density, more stable performance & 100% usable power. The built-in 50A upgraded BMS protects it from overcharge, over-discharge, over-current, over-voltage, overload, and short circuits. Using a 14.6V 10A LiFePO4 battery charger to fully charge our 50Ah battery could maximize its best performance.[5 Years Warranty of Battery & 2 Years Warranty of Charger] Power Queen provides a 5-year warranty for our 12V 50Ah LiFePO4 battery and a 2-year warranty for our 14.6V 10A LiFePO4 battery charger. Our 12.8V 50Ah LiFePO4 battery supports 4000 cycle times in 10 years lifespan, it can be fully charged by our specific 14.6V 10A LiFePO4 battery charger compared with other lithium battery chargers made for the lead-acid battery not for LiFePO4 battery only can charge our battery at 70% capacity.[Fast Delivery & 24-hour Timely Service]  We strive to provide the safest batteries & chargers and the most professional service to every customer. If you have any questions, please feel free to contact us. We'll ship the battery and charger together, providing a safe and strong battery and charger package and fast delivery because our products will be shipped from our local California warehouse. Normally, the shipping time would be 2~5 workdays due to different zones of the US.Attention Please: This battery is NOT suitable to be used as a starter battery, golf cart battery, or for high-power applications such as water pumps, electric jacks, lifts, vacuum cleaners, four-wheel drive lawn mowers, etc., for more info please consult Power Queen: service@ipowerqueen.com

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[Exquisite Design & Simple Operation] Small, light, and exquisite, the Power Queen 12V DC-DC battery charger has a compact design, and the dimensions are 5.83*1.89*7.44 inches, so it can save more space for your vehicle. The additional components, Anderson connectors, bring simple connection and operation in the installation process, less trouble for you during setup. The visual LED indicators let you easily know the charging status.[High-level Safety Secured & Reverse Charge Function] Power Queen 12V DC-DC battery charger can protect the battery from over-charging, over-voltage, and over-temp, and it has BMS protection for LiFePO4 batteries. Besides, this charger can activate the LiFePO4 battery when the BMS inside the battery shuts off. Where necessary, the service battery can charge the starter battery, protecting the starter battery and alternator from damage.[Dual Input Charging】Power Queen 12V DC-DC battery charger supports charging the service battery through the generator and solar panels, achieving 100% fully charged on the service battery. The advanced built-in MPPT function of the charger maximizes solar power and brings a high charging efficiency at a proper voltage and charging phase.[Great Compatibility & More Options] Power Queen 12V DC-DC battery charger is compatible with various battery types, such as Lithium batteries, AGM, Gel, SLA, and CA, and offers you more options and a more flexible lifestyle. The charger can meet your multiple needs for charging the service battery in various application scenarios, such as RV, trailer, camper, truck, yacht, marine, etc.[24-hour Timely Service] Power Queen struggles to provide every customer with the safest product and the most professional service. If you have any questions, we'll offer one-on-one technical support to analyze consumers' problems within 24 hours.

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