LG 24 inch 75Hz FHD IPS Monitor 24MP400-B is designed for everyday work, study, and casual use. It features a 23.8-inch Full HD IPS display with wide viewing angles. Additionally, it supports AMD FreeSync for smoother visuals. Therefore, it delivers stable performance for office tasks and light entertainment. The LG 24MP400-B offers 1920 × 1080 resolution with a 75Hz refresh rate. Moreover, it includes a 5ms response time and 250 nits brightness for clear image quality. It also provides 1000:1 contrast ratio and 178° viewing angles for consistent visuals. In addition, it supports HDMI and VGA inputs for flexible connectivity. Furthermore, it includes Reader Mode, Flicker Safe, Black Stabilizer, and Dynamic Action Sync. As a result, users get better eye comfort and improved visibility in dark scenes. It also supports VESA mounting for space-saving setups and flexible desk arrangements. manufacturer link Specifications: 23.8-inch Full HD (1920 × 1080) IPS display 75Hz refresh rate with AMD FreeSync support 5ms response time with 250 nits brightness HDMI and VGA connectivity options Flicker Safe and Reader Mode for eye comfort
Used OEM Original Apple Logic Board Working, A1706 Late 2017 Mode 3.3 GHz i7 256gb 16gb RAM Tested using latest industry hardware diagnostic software, Fresh pull from full unit.
The TP-Link TL-WA855RE N300 Universal Range Extender boosts your existing 2.4GHz Wi-Fi signal up to 300Mbps to eliminate dead zones and extend coverage. With a compact wall-plug design, dual external antennas, and one-touch WPS setup, it’s perfect for home and office use. The TP-Link TL-WA855RE N300 Universal Wireless Range Extender is an easy and affordable solution to extend your Wi-Fi coverage into areas where your router signal is weak or unavailable. It works with almost any wireless router to repeat and strengthen your existing network, providing improved connectivity for streaming, browsing, video calls, and everyday online tasks. Featuring two external antennas for better signal strength, an Ethernet port for wired devices, and a smart signal indicator for optimal placement, it ensures stable coverage across your space. N300 Wi-Fi Speed (Up to 300Mbps) on 2.4GHz Universal Compatibility works with most Wi-Fi routers and access points Boosts Coverage & Removes Dead Zones for stronger wireless signal Two External Antennas improve range and stability One-Touch WPS Setup for quick and simple connection Smart Signal Indicator helps you find the best placement Ethernet Port for wired connection to TVs, PCs, or consoles Compact Wall Plug Design ideal for home or office use Ideal for homes, offices, apartments, and small businesses needing better Wi-Fi coverage. Works with laptops, smartphones, smart TVs, tablets, IP cameras, and other Wi-Fi devices.
PCE 900 M8 900VA 480W Output Power: 700VA (M8 700), 900VA (M8 900) Voltage Input Range: 220-240 VAC with 102 wires (M8 700), 140-300 VAC (M8 900) Output Protection: Overload, discharge, and overcharge protection (M8 700), Fault protection (M8 900) Waveform: Simulated Sine Wave LED Indicators: Green lighting (M8 700), Green flashing (M8 900) Frequency: 50 or 60 Hz +/- 10% (auto sensing) (M8 700), 50 or 60 Hz +/- 1% (M8 900) Voltage (backup mode): 12V/9AH x 1 (M8 700), 12V/7AH x 1 (M8 900) Frequency (backup mode): 50 or 60 Hz +/- 1% (M8 700 and M8 900) Transfer time (M8 700): Typical 2 to 6 ms Backup time (M8 900): 10-20min depending on load level Net Weight: 4.3 kg (9.46 lbs) (M8 700), 4.8 kg (10.56 lbs) (M8 900) Output Receptacles: Universal sockets x 2 or German x 2 (M8 700), Universal sockets x 4 (M8 900) Audible Noise: Sounding every 10 seconds (M8 700), Sounding every second (M8 900) Dimensions: 100x278x140 (3.9″x10.8″x5.5″) (M8 700), 130x320x182 (5.07″x12.48″x7.1″) (M8 900) Compatibility: Windows 2000/XP/2003/2008/Vista/7, NOVELL, LINUX, UNIX (M8 700), Optional Interface with power management software (M8 900) Certifications: EN 50091-1-1/EN 69050 (RD), IEC 60950, TUV GC-Mark, EN 50091-2, EN 50022/B, IEC 62040-2, IEC 61000-3-2, IEC 61000-3-3, ISO 9001, ISO 14001 (M8 700 and M8 900)
OEM-quality trackpad replacement (without flex cable) for MacBook Air 13.3″ M1 (Model A2337, EMC 3598)—available in Space Gray, Gold, and Silver finishes—engineered for precise Force Touch response, smooth multi-touch gestures, and perfect color-matched integration. Compatible With: MacBook Air 13.3-inch (2020, Model A2337, EMC 3598) with Apple M1 chip. Part Type: Trackpad only—does not include the flex cable, Taptic Engine, or mounting brackets. Intended for professional technicians who will reuse or transfer the original internal components. Color Options: Space Gray – matches Space Gray and Midnight finishes Gold – matches Gold MacBook Air Silver – matches Silver and Starlight finishes Each variant is finished to OEM specifications for seamless visual continuity with the lower case. Space Gray – matches Space Gray and Midnight finishes Gold – matches Gold MacBook Air Silver – matches Silver and Starlight finishes Each variant is finished to OEM specifications for seamless visual continuity with the lower case. Force Touch Support: Fully compatible with pressure-sensitive input and haptic feedback when used with the original Taptic Engine and logic board—ensuring full macOS gesture functionality (e.g., Force Click, Look Up, pressure-sensitive drawing). Precision Engineering: Features the same smooth glass surface, curvature, and micro-click mechanism as Apple’s original—delivering consistent tracking accuracy and tactile feel. Installation Requirements: Requires complete bottom case disassembly and careful transfer of the original flex cable and Taptic Engine. Adhesive must be applied precisely to maintain structural integrity and sensor alignment. Recommended for certified or experienced repair technicians only. Important: This is a bare trackpad assembly—not a plug-and-play module. Functionality depends on correct integration with original electronics.
The MSI MAG 244F 24″ 200 Hz Gaming Monitor delivers smooth visuals with super‑fast refresh rate. It features a full HD (1920×1080) IPS panel for vivid colors and wide viewing angles. Moreover, its 1 ms MPRT response time reduces motion blur during fast-paced gameplay. Also, the 200 Hz refresh rate ensures fluid motion in competitive games. In addition, the monitor supports Adaptive‑Sync to eliminate screen tearing and stutter. Besides that, the slim bezel design creates an immersive multi‑monitor setup. Furthermore, the adjustable stand allows tilt, height, and swivel customization. Therefore, users can find a comfortable viewing position effortlessly. It includes DisplayPort and HDMI inputs for flexible connectivity. Also, built‑in gaming presets offer easy optimization for different game genres. Plus, MSI’s Anti‑Flicker and Less Blue Light technologies reduce eye strain. Meanwhile, the monitor uses a VESA mount for wall or arm installation. Importantly, the sturdy stand delivers stable support during intense gaming sessions. Also, on‑screen crosshair overlays enhance accuracy in FPS games. Unlike standard monitors, this one targets e‑sports and fast‑reaction players. However, it still works well for streaming, editing, and productivity tasks. For example, racing, shooter, or fighting games feel more responsive and clear. Then, users connect cables, power on, and enjoy lag‑free visuals instantly. Moreover, the ergonomics support comfort during long gaming or desk sessions. As a result, performance gains combine with healthy posture support. Also, the display’s vivid contrast keeps dark and bright details visible. In addition, its low input lag provides competitive advantage in fast games. Therefore, gamers stay ahead with accurate and real‑time feedback. Also, the monitor’s sleek black design complements any gaming setup. Furthermore, MSI’s reliable build quality offers long‑term durability. Consequently, users gain both style and substance in one package. Also, all essential cables come in the box for easy setup. In conclusion, the MSI MAG 244F offers 200 Hz speed, IPS clarity, and gaming comfort. Finally, it’s a smart investment for serious gamers seeking fluid performance. Specifications: Display : 23.8” Rapid IPS Resolution : 1920 x 1080 (FHD) Refresh Rate : 200Hz Response Rate : 0.5ms
The AOC Q27G3Z is a high-end 27″ gaming monitor with a QHD resolution of 2560×1440. It uses a Fast IPS panel that delivers excellent color and speed. In addition, it supports a refresh rate of 240 Hz and a response time of 0.5 ms (MPRT) for ultra-smooth gameplay. Its adaptive sync support ensures tear-free visuals during fast action. The AOC Q27G3Z covers wide color gamuts: NTSC 110 %, sRGB 123 %, and DCI-P3 101 %. This makes it ideal not only for gaming but also for content creation. Moreover, it is VESA DisplayHDR 400 certified, so highlights pop and blacks look deeper. The brightness reaches around 400 cd/m², making it suitable in well-lit rooms. Connectivity includes two HDMI 2.0 ports and two DisplayPort 1.4 inputs for flexibility across consoles and PCs. Additionally, the ergonomic stand allows height adjustment, tilt, swivel, and pivot for comfortable viewing in any setup. Its sleek black & red design blends into gaming rigs easily. In short, the AOC Q27G3Z combines speed, clarity and color accuracy in one package. It is a great choice for competitive gamers and creators who want a balanced monitor that handles both performance and visuals well. Check out other option here! Specifications: Display : 27″ Fast IPS Resolution : 2560 x 1440 (QHD) Refresh Rate : 240Hz Response Rate : 0.5ms
BATTERY TOSHIBA PA5136U-1BRS for Toshiba Portege Z30 Z30-A Z30-A1301 Series PA5136U Tablet Rechargeable Notebook Battery Pack 14.8V 3380mAh About this item Battery type: Voltage: 14.8V Capacity: 3380 mAh(52Wh) Cells: 4-cell Li-Polymer 100% New from Manufacturer Full Compatible for Part# PA5136U-1BRS,500+ recharge cycles over Every battery has passed factory testing; CE-/FCC-/RoHS-Certified ensures safety. Grade A cells battery; Quality assurance This compatibility list is non-exhaustive, if your original part# or your laptop model NO is not included in the compatibility list, but our battery may still fit your laptop. Please feel free to contact us to confirm the compatibility
WiWU S500 Foldable Lightweight Plastic Laptop Stand Description WiWU S500 Foldable Lightweight Plastic Laptop Stand Brand: wiwu Material: ABS+Aluminum alloy Foldable Height Adjustment. Laptop stand with foldable technology, light weight, easy to carry Adjustable from 20 to 40 degrees and height adjustable from 3.15 to 5.12 inches. There are 6 corners Compatible with laptops (11 inch-15 inch) Macbook, iMac, ipad, Microsoft Surface PR, Thinkpad, Lenovo, Dell, HP and more. With anti-slip rubber pad
WiWU Waterproof Lycra Cosmo Laptop Slim Bag Laptop Handbag with Strap for Men and Women
HP M24f Monitor Overview The HP M24f is a 24-inch Full HD monitor designed for work and everyday use. It offers a slim design and reliable performance. As a result, it suits offices, home setups, and students. 24-Inch Full HD Display This monitor features a 24-inch Full HD resolution. Therefore, text appears sharp and easy to read. Moreover, images look clear and well balanced. Because of this, it supports long working sessions comfortably. In addition, the wide viewing angles improve screen visibility. As a result, content stays clear from different positions. Smooth Visual Performance The HP M24f delivers smooth visuals for daily tasks. As a result, scrolling and browsing feel natural. Furthermore, the display maintains consistent brightness. This improves overall viewing comfort. Eye Comfort and Anti-Glare Screen This monitor includes eye comfort features. Therefore, it helps reduce eye strain. In addition, the anti-glare coating minimizes reflections. As a result, users can work comfortably in bright rooms. Connectivity and Compatibility The HP M24f includes HDMI and VGA ports. As a result, it connects easily to modern and older devices. Moreover, setup is quick and simple. Therefore, users can start working right away. Slim Design and Mounting Options The monitor features a sleek and modern design. In addition, it supports VESA mounting. As a result, users can save desk space and customize layouts. Ideal for Daily Use This monitor focuses on clarity and reliability. Moreover, it suits office work, browsing, and media viewing. In conclusion, the HP M24f offers a balanced and efficient display solution. Specifications: Display: 23.8-inch IPS panel with 178-degree ultra-wide viewing angles. Resolution: FHD (1920 X 1080) at 75Hz refresh rate. Visual Quality: 300 nits brightness, 1000:1 contrast ratio, and 99% sRGB color gamut for accurate, vibrant, and consistent colors. Gaming/Performance: AMD Free Sync technology reduces screen tearing and stuttering
256GB SSD Apple Macbook Pro Air 2013 2014 2015 A1502 A1398 A1466 A1465 | Samsung MZ-JPU512T/A06 | 655-1805D ORIGINAL APPLE PART (Apple sources their SSD’s for MacBooks from Samsung) A1502 – A1398 – A1465 – A1466 100% TESTED WORKING Please check compatibility below before you make your purchase: COMPATIBILITY: MacBook Pro Retina Late 2013 – Mid-2015 MacBookPro11,1 (A1502) – ME864LL/A, ME866LL/A, ME867LL/A, MGX72LL/A, MGX92LL/A, & MGXD2LL/A MacBookPro11,2 (A1398) – ME293LL/A & MGXA2LL/A MacBookPro11,3 (A1398) – ME294LL/A, ME874LL/A, MGXC2LL/A, & MGXG2LL/A MacBookPro11,4 (A1398) – MJLQ2LL/A MacBookPro11,5 (A1398) – MJLT2LL/A & MJLU2LL/A MacBookPro12,1 (A1502) – MF839LL/A, MF841LL/A, & MF843LL/A MacBook Air Mid-2013 – Late 2015 MacBookAir6,1 (A1465) – MD711LL/A, MD760LL/A, MD711LL/B, & MF067LL/A MacBookAir6,2 (A1466) – MD760LL/A, MD760LL/B, & MF068LL/A MacBookAir7,1 (A1465) – MJMVM2LL/A MacBookAir7,2 (A1466) – MJVE2LL/A Model Identifier: Samsung Manufacturer Part# MZ-JPU512T/A06
NB OMS035 NB Desk Mount with Keyboard Tray for 19-27 Inch Screens Up to 9Kg Load Full Motion • Desk Stand offers comfortable viewing position that promotes healthy movements and requires minimum space at home or the office • Fits most 19 to 27 inch screens with ultra-wide foldable keyboard tray • Full motion mount with rotation 360°, swivel ±90° and Tilt angle +12° to -15° • The mount has an extension of 40” (1020 mm), retraction of 3.9” (100mm) and an upright lift distance of 18.9” (480mm) • Design includes a durable gas-strut to hover at any working position • Built-in extra shelf for phone and small goods storage • Supports load from 2 to 9 kg • Mounting VESA compliance 75×75 mm and 100×100 mm • Product dimensions: 24 x 7.3 x 14.4 cm Specifications: Specifications • NB Desk Mount with Keyboard Tray for 19-27 Inch Screens Up to 9Kg Load Full Motion • Desk Stand offers comfortable viewing position that promotes healthy movements and requires minimum space at home or the office • Fits most 19 to 27 inch screens with ultra-wide foldable keyboard tray • Full motion mount with rotation 360°, swivel ±90° and Tilt angle +12° to -15° • The mount has an extension of 40” (1020 mm), retraction of 3.9” (100mm) and an upright lift distance of 18.9” (480mm)
HyperX Pulsefire Core (4P4F8AA) – RGB gaming mouse with PixArt sensor, 6,200 DPI, and 7 programmable buttons.Lightweight, ergonomic design perfect for gamers seeking precision and durability. Model: HyperX Pulsefire Core (4P4F8AA) Sensor Type: PixArt PAW3327 Optical Sensor DPI Range: 800 – 6,200 DPI (adjustable in software) Polling Rate: 1000 Hz Tracking Speed: Up to 220 IPS Acceleration: 30G Buttons: 7 programmable buttons Switch Type: Durable switches rated for up to 20 million clicks Lighting: Customizable RGB lighting (logo zone) Grip Style: Palm or claw grip Design: Ergonomic, right-handed shape with textured side grips Weight: Approx. 87g (without cable) Cable Length: 1.8 meters (braided USB cable) Software Support: HyperX NGENUITY for DPI, RGB, and button customization Compatibility: Windows 10, 8.1, 8, 7
Introducing the Samsung Odyssey G6 27—a collection of monitors designed to redefine your visual experience and meet the demands of modern users. Embark on a journey of visual excellence with cutting-edge features that distinguish the Samsung Monitor Series. From vibrant displays to advanced technologies, these monitors ensure a superior and immersive viewing experience for users. Beneath their sleek and modern exteriors lies a commitment to seamless functionality. The Samsung Monitor Series is crafted to deliver not only stunning visuals but also user-friendly interfaces, making them an essential tool for both work and entertainment. Delve into the seamless integration of advanced technologies, ensuring these monitors adapt effortlessly to the evolving demands of modern content consumption. Whether you’re working on detailed tasks, streaming high-definition content, or gaming, the Samsung Monitor Series caters to diverse needs. Portability may not be the focus, but these monitors excel in providing flexible setups for various environments. With their slim profiles and versatile designs, the Samsung Monitor Series ensures your viewing experience remains top-tier. In conclusion, elevate your viewing experience with the Samsung Odyssey G6 27. Immerse yourself in cutting-edge features, vibrant displays, and sleek designs. Choose the Samsung Monitor Series for a monitor lineup that seamlessly blends advanced technology with visual brilliance. Specifications: Display : 27″ VA Resolution : 2560×1440 Response Time : 1ms Refresh Rate : 240Mhz Part Number : LS27BG650EMXUE
Professional Grade K9 Dual Wireless Lavalier Mic For Android Smartphones Type C K9 Wireless Collar Microphone For YouTube Voice Recording Live Videos Vlog ASMR Podcast & Interview Expert Features 【Wireless Lavalier Microphone (2 Pcs) 】: Ideal for USB-C, iPhone, Smartphones, iPads and Macs with USB-C ports, Android devices, and laptops with USportsPort | Auto Noise Reduction. 【Dual Microphone Set】:Includes two wireless Lavalier microphones for versatile audio recording options. Simply plug the microphone into the USB port for instant connectivity and ease of use. 【Wide Compatibility】:Ideal for use with USB-C devices, iPhones, smartphones, iPads, Macs, Android devices, and laptops with USB-C ports, ensuring compatibility across various platforms. 【Auto Noise Reduction】: Features built-in noise reduction technology to minimize background noise and ensure clear and crisp audio. 【Long Battery Life】:Powered by lithium-ion batteries, providing reliable performance for extended recording sessions. 【Versatile Applications】:Suitable for a wide range of applications, including vlogging, interviews, presentations, podcasting, and more.
Ready to take your gaming setup to the next level? Look no further than the ViewSonic 32” 75Hz FHD Monitor VA3209-MH. This monitor offers a perfect blend of performance and immersion for gamers. With a generous 32-inch display, immerse yourself in stunning Full HD visuals. Every detail pops with clarity and vibrancy, bringing your favorite games to life in vivid color. Transitioning to performance, the VA3209-MH boasts a smooth 75Hz refresh rate, ensuring fluid motion and reduced motion blur during fast-paced gaming action. Say goodbye to screen tearing and hello to seamless gameplay. Moreover, this monitor features built-in speakers, eliminating the need for external audio devices. Immerse yourself in crystal-clear sound as you explore virtual worlds and engage in epic battles. The ViewSonic 32” 75Hz FHD Monitor VA3209-MH is designed with your comfort in mind. Its ergonomic stand allows for customizable tilt adjustments, ensuring optimal viewing angles for extended gaming sessions. In addition, connectivity options such as HDMI and VGA ports offer versatile compatibility with various gaming consoles and devices. Switch between platforms seamlessly and enjoy your favorite games without limitations. In conclusion, the ViewSonic 32” FHD Monitor VA3209-MH is a game-changer for gamers seeking immersive experiences. With its stunning visuals, smooth performance, and built-in speakers, it delivers everything you need for an unforgettable gaming journey. Upgrade your setup today and elevate your gaming to new heights. Specifications: Display : 32″ IPS Resolution : FHD(1920×1080) Refresh Rate : 75Hz Response Rate : 4ms
The ViewSonic 27″ 180Hz Gaming Monitor delivers an ultra-smooth gaming experience. With a 180Hz refresh rate, every motion looks fluid and lag-free. This makes it perfect for fast-paced games like shooters and racing titles. Featuring a 1ms response time, the monitor reduces motion blur and ghosting. You get sharper visuals and smoother gameplay, giving you a competitive edge. Say goodbye to input lag and enjoy instant reactions. The ViewSonic 27-inch Gaming Monitor offers Full HD resolution for crisp and detailed visuals. Whether you’re gaming, streaming, or working, you’ll enjoy clear images with vibrant colors. The IPS panel ensures wide viewing angles and accurate colors. With AMD FreeSync technology, screen tearing and stuttering are eliminated. The monitor syncs with your graphics card for seamless gameplay. This ensures a smoother and more immersive gaming experience, even in demanding scenes. This monitor is designed for comfort and versatility. The ergonomic stand allows you to adjust height, tilt, and swivel for the perfect viewing angle. You can also mount it on a wall for a clean setup. Multiple connectivity options make the ViewSonic 27″ 180Hz Gaming Monitor easy to use. It includes HDMI and DisplayPort, allowing you to connect to gaming consoles, PCs, and more. With a sleek, modern design, this monitor enhances any gaming setup. The narrow bezels create a seamless multi-monitor experience. Enjoy distraction-free gaming with an immersive display. Upgrade your gaming experience with the ViewSonic 27″ 180Hz Gaming Monitor. Enjoy smooth performance, fast response times, and stunning visuals. Specifications: Display : 27″ IPS Resolution : 1920 x 1080 FHD Refresh Rate : 180Hz Response Rate : 1ms MPRT
MacBook Pro A1708 Battery A1713 for MacBook Pro 13 Inch A1708 Late 2016 Mid 2017 (EMC 2978 3164), A2171 Laptop Replacement Battery for MacBook Pro 13 Inch A2159 (2019) A2289 (2020) A2338 (2020) 【Macbook pro 13 Inch battery A1713 & A2171 Battery Specification】– Voltage: 11.4V. Capacity: 54.5Wh / 4781mAh, Battery Type: Li-ion 【Newest 4.0 upgraded OEM Battery for Apple macbook pro】– Japan High Performance Electric Core. Cobalt Proportion: >98%. Upgrade chip. Up to 1500+ recharge cycles over the life of the battery. Overcharger and Discharger Circuit Protection, Ensure fast charges and low power consumption, UL-/CE-/FCC-/RoHS-Certified for safety 【Replacement Battery A1713 for A1708 Macbook pro 13 inch】– A1708 Macbook pro 13” Late 2016: MacBook Pro 13-Inch “Core i5” 2.0 & MacBook Pro 13-Inch “Core i7” 2.4 (MacBookPro13,1, EMC2978, MLL42xx/A, MLUQ2xx/A). — A1708 Macbook pro 13” Mid 2017: MacBook Pro 13-Inch “Core i5” 2.3 & MacBook Pro 13-Inch “Core i7” 2.5 (MacBookPro14,1, EMC3164, MPXQ2xx/A, MPXR2xx/A, MPXT2xx/A, MPXU2xx/A) 【Replacement Battery A2171 for A2159 & A2289 & A2338 Macbook pro 13 inch】– A2159 Macbook pro 13” 2019: MacBook Pro 13-Inch “Core i5” 1.4 Touch & “Core i7” 1.7 Touch (MacBookPro15,4, EMC3301, MUHN2xx/A, MUHP2xx/A, MUHQ2xx/A, MUHR2xx/A, MUHR2xx/B). — A2289 Year 2020: MacBook Pro 13-Inch “Core i5” 1.4 & “Core i7” 1.7 (MacBookPro16,3, EMC 3456, MXK32xx/A, MXK52xx/A, MXK62xx/A, MXK72xx/A). — A2338 Year 2020: MacBook Pro 13-Inch “M1” 8-Core 3.2 (MacBookPro17,1, EMC3578, MYDA2LL/A*)
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
