BATTERY DELL WDX0R for Dell Inspiron 13 15 5000 7000 Series 5570 7579 7378 5567 7573 5565 5379 5378 Latitude 3490 3590 3340 3400 3390 3500 3190 Vostro 5468 5568 P69G 3CRH3 11.4V 42Wh About this item 【Specification】Dell laptop Replacement Battery Type: Li-ion; Voltage: 11.4V; Capacity: 42WH; Cells:3-Cell. (It is not the same as the 4-cell 33YDH 56Wh battery ) !!! Please make sure to choose the battery according to the shape of the original one, as the batteries for different laptop models may vary 【Stability】WDXOR WDX0R Laptop Battery Replacement battery for Dell offers 600+ recharge cycles over life of battery 【COMPATIBLE MODEL】(Check description below for more models) Dell Laptop Battery WDX0R P69G001 3CRH3 FC92N T2JX4 C4HCW Y3F7Y Dell Battery 3-cell 42WH 11.4v Li-on WDX0R Dell Battery Dell Inspiron 15 5570 Battery Inspiron 13-7378 battery Inspiron 15-7579 battery Dell Inspiron 5379 Battery Dell Inspiron 5567 Battery Dell Inspiron 13 7000 Battery Dell Inspiron p69g Battery Dell Inspiron 7573 Battery Dell Latitude 3340 3590 Battery Dell Vostro 5568 5468 Series Battery
A1389 A1494 Laptop Battery Replacement for MacBook Pro 15 inch Retina A1398 (Late 2013 & Mid 2014), fit Retina ME293 ME294 MGXA2 MGXC2 MJLQ2 MJLT2 MJLU2 Details : Voltage:11.26V; Capacity: 95Wh; Battery Type: Li-Polymer KINDLY NOTES: Replacement for Apple Macbook Pro 15 inch A1494 A1398 Retina Only fit Late 2013 Mid 2014 Version,Do not fit 2012 & Early 2013 Version Packing: 1 x laptop battery,4 x free screwdrivers Desighed for the original battery 1:1,Please confirm that your laptop’s model number, the original battery’s part number and your laptop’s version correctly
A lightweight and efficient pre-owned Lenovo ThinkPad T14s Gen 2 with 14" display, AMD Ryzen 5 5650U, 16GB RAM, and 512GB SSD—featuring integrated AMD Radeon graphics for smooth productivity and all-day battery life in a premium ultraportable.
The ViewSonic VG2409-MHU 24″ FHD 75Hz Monitor delivers clear and smooth visuals for work and daily use. Its Full HD resolution shows sharp text and clean image details. The 24-inch screen gives enough space for multitasking and focused tasks. This makes it perfect for home and office setups. Moreover, the ViewSonic VG2409-MHU 24″ FHD 75Hz Monitor features a smooth 75 Hz refresh rate. This makes scrolling softer and video playback more fluid. Motion feels more natural during daily use. As a result, eye comfort improves during long work sessions. In addition, the monitor uses an IPS panel for wide viewing angles. Colors stay clear and accurate from different positions. This helps when sharing the screen with others. The image stays stable and bright. Furthermore, the ViewSonic VG2409-MHU 24″ FHD 75Hz Monitor includes eye comfort features for daily protection. The low blue light mode helps reduce eye strain. The flicker-free design supports long viewing hours without discomfort. These features make it suitable for extended use. Also, the monitor offers useful built-in speakers for basic audio needs. This removes the need for external speakers in small setups. Sound is clear for videos, meetings, and casual media use. In addition, the monitor includes flexible connection options. It supports HDMI, DisplayPort, and VGA for wide device compatibility. This allows easy setup with PCs, laptops, and media devices. Switching sources becomes fast and simple. Moreover, the slim bezel design gives a clean and modern look. It fits well in professional and home workspaces. The stand supports tilt adjustment for basic comfort. Wall mounting is also supported for clean desk setups. Overall, the ViewSonic VG2409-MHU 24″ FHD 75Hz Monitor offers clarity, comfort, and smooth daily performance. It supports work, study, and entertainment with ease. This monitor is a great choice for users who want simple performance and reliable quality. Specifications: Display : 24″ IPS Resolution : FHD 1920 x 1080 Refresh Rate : 75Hz Response Time : 5ms
The MOXOM MX-PB168 is a true high-capacity 40000mAh external battery pack designed to provide reliable, multi-day charging for all your devices. Featuring an advanced multi-protocol fast setup with dual built-in cables, a clear LCD digital battery indicator, and a high-intensity integrated flashlight, it is the ultimate heavy-duty solution for outdoor adventures, travel, or emergency home backups. ✅ Full Specifications: Model: MOXOM Ultra-Large Capacity Power Bank (MX-PB168) Interface / Connection: Multi-Port Charging Setup: Input Ports: Type-C and Micro-USB ports (for recharging the power bank) Output Ports: 4 x USB-A Fast Charging ports Built-In Cables: 1 x Type-C Cable & 1 x Lightning (iPhone) Cable attached directly to the frame Interface / Connection: Multi-Port Charging Setup: Input Ports: Type-C and Micro-USB ports (for recharging the power bank) Output Ports: 4 x USB-A Fast Charging ports Built-In Cables: 1 x Type-C Cable & 1 x Lightning (iPhone) Cable attached directly to the frame Performance / Charging Speed: Max output up to 22.5W high-efficiency fast charging Supports Power Delivery (PD 20W) Supports Quick Charge 3.0 (QC3.0) Supports Huawei SuperCharge Protocol (SCP 22.5W) Performance / Charging Speed: Max output up to 22.5W high-efficiency fast charging Supports Power Delivery (PD 20W) Supports Quick Charge 3.0 (QC3.0) Supports Huawei SuperCharge Protocol (SCP 22.5W) Capacity / Battery Variant: 40000mAh (High-density Li-Polymer cells) Material & Build: Fire-retardant, heavy-duty ABS + Polycarbonate matte black casing built to resist everyday scuffs and impacts. Design & Form Factor: Ergonomic block form factor equipped with an integrated high-tensile hanging rope/strap for easier carrying. Security & Smart Features: * Smart MCU management chip protecting devices against over-current, overheating, short circuits, and overcharging Integrated bright LED spotlight/flashlight for nighttime or emergency blackouts Security & Smart Features: * Smart MCU management chip protecting devices against over-current, overheating, short circuits, and overcharging Integrated bright LED spotlight/flashlight for nighttime or emergency blackouts Display: Full front-facing premium LCD digital display showing real-time battery charge percentages and fast-charging status triggers. Compatibility: Universally compatible with Apple iPhones, iPads, Samsung Galaxy series, Huawei, Xiaomi, Oppo, tablets, smartwatches, and low-current wireless earphones. Color: Matte Black
The AOC 27″ 180Hz Gaming Monitor is designed for serious gamers seeking top-tier performance. Its ultra-fast 180Hz refresh rate ensures smooth and fluid visuals, reducing motion blur for a more immersive gaming experience. Firstly with a 27-inch screen, this gaming monitor offers ample space for your games, providing clear and detailed images. The large display enhances your field of view, making every gaming session more engaging and enjoyable. Furthermore the AOC 27″ 180Hz Gaming Monitor features a Full HD resolution, delivering crisp and sharp visuals. Whether you’re playing fast-paced shooters or exploring open-world adventures, every detail will be displayed with precision. Equipped with Adaptive-Sync technology, this monitor eliminates screen tearing and stuttering, ensuring seamless gameplay. You’ll enjoy a more responsive and visually stunning gaming experience, keeping you competitive in every match. The sleek and modern design of the AOC Gaming Monitor complements any gaming setup. Its slim bezels provide a more immersive viewing experience, allowing you to focus entirely on your game. Connectivity is made easy with multiple input options, including HDMI and DisplayPort. You can easily connect your gaming console, PC, or other devices for versatile use. In conclusion, the AOC 27″ 180Hz Gaming Monitor offers outstanding performance, stunning visuals, and a sleek design. Upgrade your gaming setup with this high-performance monitor and experience games like never before. Specifications: Display : 27″ VA Resolution : 1920×1080 FHD Refresh Rate : 180Hz Response Rate : 1ms
The BenQ ZOWIE XL2566K TN 360Hz 24.5″ Gaming Monitor is designed for serious gamers. Its 360Hz refresh rate ensures incredibly smooth and fluid motion, reducing blur and ghosting in fast-paced games. With a 24.5″ TN panel, this gaming monitor delivers vibrant colors and sharp images. The TN technology ensures low response times, making it ideal for competitive gaming where every millisecond counts. Setting up the BenQ ZOWIE XL2566K is simple and straightforward. The adjustable stand allows you to find the perfect viewing angle, ensuring comfort during long gaming sessions. Experience the benefits of DyAc+ Technology, which enhances clarity and reduces motion blur. This feature is perfect for first-person shooters and fast-action games, giving you a clear advantage over your opponents. The BenQ ZOWIE XL2566K offers multiple connectivity options, including HDMI, DisplayPort, and USB. This versatility allows you to connect various devices and switch between them with ease. With its Black eQualizer and Color Vibrance settings, you can customize your gaming experience. These features help you spot enemies in dark areas and adjust color settings to suit your preferences. In conclusion, the BenQ ZOWIE XL2566K TN 360Hz 24.5″ Gaming Monitor is a top choice for gamers seeking an edge in performance. Upgrade to this monitor and enjoy ultra-smooth gameplay and exceptional clarity. Elevate your gaming setup today and dominate the competition. Specifications: Display : 24.5″ TN Resolution : 1920 x 1080 Refresh Rate : 360Hz
The MSI G27C3F 27″ is a curved gaming monitor designed to give you smooth and immersive gameplay. It features a 27-inch curved screen that pulls you into the action. With a 165Hz refresh rate, the MSI G27C3F delivers fast and fluid visuals. Moreover, the 1ms response time ensures every movement looks sharp without any motion blur. This makes the MSI G27C3F perfect for fast-paced games. In addition, it uses VA panel technology for deeper blacks and vivid colors. Thanks to its Full HD resolution, games and videos appear clear and detailed. Plus, the MSI G27C3F includes anti-flicker and blue light reduction features. These help reduce eye strain during long gaming or work sessions. Setting up the MSI G27C3F 27″ is quick and simple with its user-friendly design. It also supports tilt adjustment for better viewing comfort. Furthermore, the monitor’s sleek and modern look fits perfectly into any gaming setup. For competitive gamers, the MSI G27C3F offers a real edge with its smooth performance and sharp visuals. Also, it supports AMD FreeSync technology to prevent screen tearing. This keeps your gameplay clean and uninterrupted. Besides gaming, the MSI G27C3F is great for movies, streaming, and everyday use. You can also connect it easily to your PC, laptop, or console. Its ports offer flexible options for all your needs. In short, the MSI G27C3F 27″ is a smart pick for anyone who wants a fast, stylish, and reliable gaming monitor. Choose the MSI G27C3F for better speed, clarity, and comfort in every session. Specifications: Display : 27″ Resolution : 1920 x 1080 FHD Refresh Rate : 180Hz Response Time : 1ms GTG
The ViewSonic VA2708-2K-MHD is a 27-inch monitor featuring a SuperClear IPS panel with QHD resolution (2560 × 1440). The higher resolution provides more screen space and sharper image quality compared to standard Full HD displays, making it suitable for office work, content consumption, and everyday productivity. The monitor supports a refresh rate of up to 100Hz. As a result, scrolling, video playback, and general desktop use appear smoother than on traditional 60Hz displays. In addition, the display offers a 1ms MPRT response time to help reduce perceived motion blur. The IPS panel provides wide 178° horizontal and vertical viewing angles. Therefore, colors and brightness remain more consistent when viewed from different positions. ViewSonic includes built-in stereo speakers for basic audio playback. This eliminates the need for external speakers in many office and home environments. Connectivity includes HDMI, DisplayPort, and VGA inputs, allowing compatibility with modern and legacy devices. The monitor also supports VESA wall mounting for flexible installation options. The VA2708-2K-MHD focuses on sharp QHD image quality, smooth 100Hz performance, and versatile connectivity for everyday computing tasks. Specifications: 2K QHD 2560 X 1440 resolution SuperClear® IPS panel 100Hz Variable refresh rate delivers fluid visuals 1ms (MPRT) response time for precision HDR10 Delivers Stellar Contrast and Color Accuracy
Samsung ViewFinity S5 S50GC 34″ UltraWide Monitor features a 21:9 Ultra WQHD display for wide and detailed viewing. Additionally, the large screen helps improve productivity and entertainment by showing more content at once. The flat design and minimal bezel support multi‑task workflows with less distraction. Moreover, the monitor supports HDR10 for richer color and deeper contrast. This brings more accurate and vibrant visuals for movies, work, and games. In addition, the 100Hz refresh rate helps deliver smoother motion during fast scenes and transitions. Furthermore, AMD FreeSync keeps the display and graphics card refresh rates in sync to reduce tearing and stutter. Eye Saver Mode and Flicker Free technology help reduce eye strain during long use. Picture‑in‑Picture (PIP) and Picture‑by‑Picture (PBP) let users view content from two sources at once. Finally, the panel offers wide viewing angles and consistent visuals across the screen. The monitor also includes an ambient light sensor to adjust brightness automatically in changing lighting conditions. These features make it a versatile choice for work and multimedia. Specifications: The monitor has Ultra WQHD (3440 × 1440) resolution with a 21:9 aspect ratio for a wide view. It offers a 100Hz refresh rate for smooth motion and reduced blur. HDR10 support adds richer colors and improved contrast. AMD FreeSync keeps graphics and display refresh rates aligned to reduce tearing. Features include PIP/PBP for multitasking, Eye Saver Mode, and Flicker Free eye comfort tech.
Are you in search of a monitor that delivers both smooth performance and vibrant visuals? Look no further than the MSI Pro 27″ 100Hz Monitor. Designed to meet the demands of both gamers and professionals, this monitor offers a seamless viewing experience. First and foremost, let’s discuss its refresh rate. With a refresh rate of 100Hz, this monitor ensures buttery-smooth visuals, free from motion blur or screen tearing. Whether you’re gaming or working, every frame is delivered with precision and clarity. Additionally, the 27-inch display provides ample screen real estate, allowing for immersive gaming sessions or productive work environments. Say goodbye to squinting at small screens and hello to expansive viewing experiences. Transitioning to color accuracy, the MSI Pro monitor boasts vibrant and true-to-life colors, thanks to its advanced display technology. Whether you’re editing photos, watching movies, or gaming, every hue is rendered with stunning accuracy. Moreover, the monitor’s sleek and minimalist design adds a touch of sophistication to any workspace or gaming setup. Its thin bezels maximize screen space, while the adjustable stand ensures ergonomic viewing angles for maximum comfort. Furthermore, with multiple connectivity options, including HDMI and DisplayPort, this monitor seamlessly integrates with your existing setup. Whether you’re connecting a gaming console, PC, or laptop, setup is quick and hassle-free. In conclusion, the MSI Pro 27″ 100Hz Monitor is a versatile display solution that excels in both performance and aesthetics. Whether you’re a gamer, content creator, or professional, this monitor delivers an exceptional viewing experience that enhances productivity and enjoyment. Upgrade your display today and immerse yourself in the world of vibrant visuals and smooth performance. Specifications: Display : 27″ Resolution : 1920 x 1080 (FHD) Refresh Rate : 100Hz Response Rate : 1ms
lenovo battery L16L2PB2 L16M2PB1 L16S2PB2 L16C2PB2 Laptop Notebook Battery for Lenovo 5000-15 2ICP6/55/90 Series 7.4V 30Wh 4050mAh About this item Condition: New Voltage: 7.4V Capacity: 30Wh/4050mAh Replace Part Number: L16M2PB1 L16L2PB2 L16M2PB2 L16S2PB1 L16L2PB3 L16C2PB1 L17L2PF1 L17M2PB7 L16C2PB2 L16L2PB1 L16M2PB3 2ICP6/55/90 Fit For: Lenovo 5000-15 Series Raise the battery life: 1: After receiving the battery, Please charge it fully, discharge it to around 10, and do it three times. 2: If you don’t use the battery for a long time, please charge and discharge it once a month
MULTI-FUNCTIONAL: Portable retro speaker, support Bluetooth, U disk, Memory Card, AUX (connect to MP3, MP4 player, smartphone, PC) to play music. It is easy to enjoy stereo sound for music lovers. LONG BATTERY LIFE: Bluetooth speaker has a built-in 1800mAh battery, rechargeable and environmentally friendly, providing 8 hours of battery life, ensuring you can enjoy your favorite music and radio stations for a long time. CLEAR SOUND: The radio speaker’s built-in powerful DSP chip and antenna provide excellent reception, allowing you to experience clear sound. Stations can be easily selected, making it convenient to find your favorite FM channels. POWERFUL: This speaker is compact but with high power, the 5W speaker delivers powerful sound quality. Allows you to enjoy rich and immersive sound, transforming your room into a charming listening environment. RETRO DESIGN: The small FM radio speaker with charming and versatile design incorporates classic aesthetics, making it a delightful addition to your sound collection. For living rooms, bedrooms, parties, etc.
The Apildella 14″ Triple Laptop Screen Extender gives your laptop three screens for better productivity. It allows you to work faster and more comfortably. The extender adds two extra displays around your laptop screen. This creates a wider workspace for all your tasks. Moreover, the Apildella Triple Laptop Screen Extender offers clear and bright visuals. Each screen delivers sharp quality for work, gaming, and media. The colors stay consistent across all panels. This helps you focus on your tasks with ease. In addition, the screens connect through simple USB-C or HDMI. The setup process is quick, and you can start using it instantly. There is no need for heavy software. This makes the extender ideal for travel and office use. Furthermore, the Apildella 14″ Triple Laptop Screen Extender works with many laptops. It supports Windows, macOS, and some mobile devices. This wide compatibility makes it useful for students, creators, and professionals. It helps you multitask with less stress. Also, the extender features a foldable and lightweight design. You can pack it in your laptop bag easily. It fits well in small workspaces. This makes it great for remote work and travel. The Apildella Triple Laptop Screen Extender also allows adjustable viewing angles. You can tilt the screens to get a comfortable view. This helps reduce eye strain during long hours of use. It improves your overall productivity. Overall, the Apildella 14″ Triple Laptop Screen Extender gives you more space, better multitasking, and stronger efficiency. It upgrades your laptop into a full workstation instantly. It is perfect for work, study, design, and streaming anywhere you go. Specifications: Display : 14″ Resolution : FHD 1920×1080 Refresh Rate : 60Hz Compatible with 13″ to 17″ laptops, windows/mac
Are you ready to take your gaming to the next level? Look no further than the Asus VG279Q3A 27″ 180Hz Gaming Monitor. With its advanced features and cutting-edge technology, this monitor is designed to deliver an immersive gaming experience like no other. Firstly, let’s talk about the impressive display. With a 27-inch Full HD panel, you’ll enjoy crisp, clear visuals with vibrant colors and sharp details. Whether you’re exploring vast open worlds or engaging in intense battles, every moment will come to life on this stunning screen. Moreover, the 180Hz refresh rate ensures smooth and fluid gameplay, allowing you to react quickly to every movement with precision and accuracy. Say goodbye to motion blur and screen tearing, and hello to seamless gaming sessions that keep you on the edge of your seat. In addition, the Asus VG279Q3A features Adaptive-Sync technology, which eliminates stuttering and tearing for a smoother gaming experience. Whether you’re playing fast-paced shooters or immersive RPGs, you’ll enjoy tear-free gameplay without any distractions. In conclusion, if you’re looking for a gaming monitor that delivers exceptional performance and immersion, the Asus VG279Q3A 27″ 180Hz Gaming Monitor is the perfect choice. Immerse yourself in stunning visuals, fluid gameplay, and unparalleled gaming excellence. Specifications: Display : 27″ IPS Resolution : 1920×1080 Refresh Rate : 180Hz Response Rate : 1ms
Late 2019 Apple MacBook Pro with 2.4GHz Intel Core i9 (16 inch, 16GB, 1TB SSD) 4GB AMD Radeon Pro 5500M Space Gray
The LG UltraGear 24″ 180Hz Gaming Monitor delivers exceptional performance for gamers seeking speed and visual precision. Its 23.8-inch Full HD IPS display ensures sharp images and vibrant colors from wide viewing angles. With a rapid 180Hz refresh rate and 1ms (GtG) response time, this monitor minimizes motion blur, providing smooth gameplay even in fast-paced scenarios. These features give you a competitive edge by allowing quicker reactions during intense gaming sessions. The monitor supports HDR10 and covers 99% of the sRGB color spectrum, enhancing visual immersion with rich and accurate colors. This ensures that game environments appear more lifelike and engaging. Equipped with both NVIDIA G-SYNC and AMD FreeSync technologies, the UltraGear monitor reduces screen tearing and stuttering. This compatibility ensures a seamless gaming experience across various graphics cards. Its virtually borderless design on three sides offers an immersive viewing experience, making it ideal for multi-monitor setups. The sleek aesthetics complement any gaming or workstation setup. Additional gaming features like Black Stabilizer, Crosshair, and FPS Counter provide enhanced visibility and targeting precision. These tools assist in identifying enemies and maintaining focus during gameplay. The monitor includes both HDMI and DisplayPort inputs, offering flexibility in connectivity options for different devices. This ensures compatibility with various gaming consoles and PCs. In summary, the LG UltraGear 24″ 180Hz Gaming Monitor combines high-speed performance, vivid visuals, and gamer-centric features, making it a solid choice for both casual and competitive gamers. Specifications: Display : 24″ VA Resolution : FHD 1920 x 1080 Refresh Rate : 180Hz Response Rate : 5ms GTG
The MSI MAG 345CQRF E20 gaming monitor delivers an immersive ultrawide experience for demanding users. It features a large curved screen that improves focus and enhances gameplay. Therefore, players enjoy a wider field of view and better visual depth. Moreover, the near-4K resolution provides sharp details and clear image quality across the 34-inch panel. The Rapid VA panel ensures strong contrast and deep blacks for richer visuals. In addition, the 240Hz refresh rate enables ultra-smooth motion during fast-paced gaming. The fast response time helps reduce motion blur and improves clarity in action scenes. As a result, players gain better precision and faster reactions. Furthermore, the curved design increases comfort and keeps visuals consistent across the screen. In addition, adaptive sync technology minimizes screen tearing and stuttering for stable performance. The monitor also supports multiple input options, allowing easy connection to gaming systems and PCs. MSI MAG 345CQRF E20 monitor provides a powerful balance of speed and immersion. Specifications: 34-inch ultrawide curved display Near-4K resolution for detailed visuals 200Hz refresh rate for ultra-smooth gameplay Rapid VA panel with high contrast Adaptive sync support for tear-free performance
Are you in the market for a gaming monitor that delivers top-notch performance without breaking the bank? Look no further than the MSI Optix MAG272CQR. In this comprehensive review, we’ll explore the features that make this monitor stand out. To start with, the MSI Optix MAG272CQR boasts a stunning 27-inch curved display, providing an immersive gaming experience. The curvature enhances your field of view, pulling you deeper into the game. Equipped with a 2560 x 1440 Quad HD resolution, this monitor delivers crisp and detailed visuals. Dive into your favorite games with clarity and precision, experiencing every detail as the developers intended. The 165Hz refresh rate ensures buttery-smooth gameplay, reducing motion blur for a competitive edge. Combined with a 1ms response time, the MSI Optix MAG272CQR is a stellar choice for fast-paced gaming scenarios. Adaptive Sync technology minimizes screen tearing and stuttering, creating a seamless and enjoyable gaming experience. Whether you’re into FPS, RPG, or MOBA games, this monitor adapts to your playstyle. Connectivity is a breeze with multiple ports, including HDMI and DisplayPort, providing versatility for various devices. The adjustable stand allows you to find the perfect viewing angle, ensuring comfort during those marathon gaming sessions. In summary, the MSI Optix MAG272CQR is a gaming monitor that ticks all the boxes – immersive display, high resolution, fast refresh rate, and adaptive sync technology. Elevate your gaming experience without breaking the bank. Make the smart choice with the MSI Optix MAG272CQR. Specifications: Size : 27″ Curve : 1500R Refresh Rate : 165Hz Response Time : 1ms
BATTERY LENOVO 00HW023 11.25V 2.09Ah 24Wh 00HW022 00HW036 SB10F46460 Notebook Battery Compatible with Lenovo Thinkpad T460s Series Laptop About this item Condition: New Voltage: 11.25V Capacity: 24Wh/2090mAh Color: Black Replace Part Number: 00HW022 ASB10F46460 00HW023 SB10F46461 00HW036 SB10F46474 Fit for Laptop Models: Lenovo Thinkpad T460s T470s Series Laptop Notebook The Package Includes: a 1X 00HW022 battery. Before purchasing, please open the back cover of the laptop to confirm the battery model and capacity. Raise the battery life: 1:After receiving the battery, Please charge it fully, then discharge it to around 10%, and do itthreee times. 2:If you don’t use the battery for a long time, please charge and discharge it once a month
