The 85W MagSafe 2 Power Adapter features a magnetic DC connector so if someone should trip over it, the cord disconnects harmlessly and your MacBook Pro stays put safely. It also helps prevent fraying or weakening of the cables over time. In addition, the magnetic DC helps guide the plug into the system for a quick and secure connection. The 85W MagSafe 2 Power Adapter features a magnetic DC connector so if someone should trip over it, the cord disconnects harmlessly and your MacBook Pro stays put safely. It also helps prevent fraying or weakening of the cables over time. In addition, the magnetic DC helps guide the plug into the system for a quick and secure connection. When the connection is secure, an LED located at the head of the DC connector lights up; an amber light lets you know that your notebook is charging, while a green light tells you that you have a full charge. An AC cord is provided with the adapter for maximum cord length, while the AC wall adapter (also provided) gives you an even easier and more compact way to travel. Designed to be the perfect traveling companion, the adapter has a clever design which allows the DC cable to be wound neatly around itself for easy cable storage. Compatible with MacBook Pro with 13-inch Retina display. See this article for more details about choosing the right one. Knowing which specific Mac model you have is important. If you are running OS X Lion (10.7) or later go to the “” menu at the top left of your screen, choose “About this Mac” then click the “More Info…” button. Your Mac model and generation will be displayed. If you are running an earlier version of OS X, you can enter your serial number here to find out which model you have. COMPATIBILITY Mac Models: MacBook Pro (Retina, 13-inch, Late 2012 – 2015)
MacBook Pro 13″ Retina A1989 / A2159 (2018-2019) Display Assembly (Silver) MacBook Pro 13″ Touch Bar 2019z A1989 (EMC 3214 MacBookPro15,2) 2.3 GHz A1989 (EMC 3214 MacBookPro15,2) 2.7 GHz MacBook Pro 13″ Touch Bar 2019 A1989 (EMC 3358 MacBookPro15,2) 2.4 GHz A1989 (EMC 3358 MacBookPro15,2) 2.8 Ghz MacBook Pro 13″ Two Thunderbolt Ports 2019 A2159 (EMC 3301 MacBookPro15,4) 1.4 GHz A2159 (EMC 3301 MacBookPro15,4) 1.7 GHz
OEM-quality touchpad replacement (without flex cable) for MacBook Air 15″ (Model A2941, 2023)—in Space Gray finish—designed for precise Force Touch performance and seamless integration with the original chassis. Compatible With: MacBook Air 15-inch (2023, Model A2941) with Apple M2 chip. Part Type: Touchpad only—does not include the flex cable, Taptic Engine, or mounting hardware. Intended for technicians who will reuse or transfer the original internal components. Color: Space Gray—matches the original lower case of Space Gray A2941 models. Force Touch Ready: Fully supports pressure-sensitive gestures and haptic feedback when paired with the original Taptic Engine and logic board. OEM Build Quality: Matches Apple’s original surface texture, curvature, and responsiveness for consistent tracking and click feel. Installation Note: Requires full bottom case disassembly and careful transfer of the original flex cable and Taptic Engine. Adhesive and alignment must be precise to avoid gaps or malfunction. Recommended for professional repair technicians.
Original top case (upper case) assembly for MacBook model A2338 (2020/2022), pulled from a working unit. Includes keyboard, battery, and palm rest — ready for drop-in replacement of a damaged upper half. This is a genuine Apple top case (upper case) assembly removed from a functioning MacBook Pro A2338. Ideal to replace a worn, cracked, or non-functional upper chassis with a fully integrated solution. It carries all the components you need for the top half of the laptop — keyboard, battery, housing, etc. Key Features & Components OEM top case: Apple original part Includes backlit keyboard built into the upper case Integrated battery cells mounted to the housing Palm rest / palm area with matching finish Cutouts and mounts for trackpad, speakers, and internal cabling Compatible with A2338 MacBook Pro (2020 M1 / 2022 M2) models Requires transfer of the Touch ID sensor, as it’s paired to the logic board not included in the case May or may not include trackpad (depending on seller / condition) Tested for battery health, keyboard functionality, internal connections (unless otherwise stated) Detailed Specifications Important Notes & Caveats Must ensure exact model (A2338) — other top cases won’t match in ports, screw layout, and internal fit. Transfer the Touch ID / fingerprint sensor from your original case — it’s tied to the logic board. Check battery condition before listing / resale — internal cells may have wear. Minor cosmetic defects or marks may exist due to being a used part. Installation requires moderate repair skills — ribbon cables, screws, and internals must be aligned correctly.
HT03XL L11119-855 Laptop Battery for HP Pavilion 14-CE 14-CF 14-DF 15-CS 15-DA 15-DB 15-DW 17-by 17-CA Series 15-CS0053CL 15-DW0033NR 15-DA0014DX L11421-542 L11421-2C2 HSTNN-UB7J HSTNN-DB8R HT03041XL About this item Compatible with: HP HT03XL Battery, for HP Pavilion 14-CE 14-CF 14-CK 14-cm 14-DF 14-MA 14Q-CS 14Q-CY 14S-CF 14S-CR 15-CS 15-CW 15-DA 15-DB 15G-DR 15T-DA 15T-DB 17-by 17-CA Series 14-CE0000 14-CE0020TX 14-CE0025TX 14-CE0027TU 14-CE0028TX 14-CE0029TX 14-CE0030TX 14-CE0034TX 14-CE1058WM 14-CE0068ST 14-CE1056WM 14-CE0064ST 14-CE0006DX 14-CF0000 14-CF0014DX 14-CF1015CL 14-CM0000 14-CM0020NR 14-CM0012NR 14Q-CS0000 14Q-CS0006TU 15-CR0000 15-CR0087CL 15-CR0052OD 15-CR0055OD 15-CR0037WM 15-CR0051CL 15-CR0091MS 15-CR0010NR Replacement Battery for HP Pavilion 15-CS0000 15-CS2010NR 15-CS025CL 15-CS2073CL 15-CS2079NR 15-CS1063CL 15-CS0072WM 15-CS0051WM 15-CS1065CL 15-CW0000 15-CW1063WM 15-DA0000 15-DA0066CL 15-DA0002DX 15-DA0079NR 15-DA1005DX 15-DA0032WM 15-DA0033WM 15-DA0073MS 15-DA0012DX 15-DA0071MS 15-DA0086OD 15-DB0000 15-DB0015DX 15-DB0031NR 15-DB0011DX 15-DB0066WM 15-DB0005DX 15-DB0048NR 15-DB0051OD 15-DB0048CA 17-BY0000 17-BY1053DX 17-BY1033DX 17-BY0060NR 17-BY0021DX 17-BY0053CL 17-BY0021CY 17-BY1055CL Laptop Compatible for HP Pavilion 240 G7, 245 G7, 250 G7, 255 G7, 340 G5, 348 G5 Series;P/N: HSTNN-DB8R HSTNN-DB8S HSTNN-IB80 HSTNN-IB8O HSTNN-LB8L HSTNN-LB8M HSTNN-UB7J HT03041XL HTO3XL HT03XL L11119-855 L11421-1C1 L11421-1C2 L11421-2C1 L11421-2C2 L11421 -2C3 L11421-2D1 L11421-2D2 L11421-421 L11421-422 L11421-423 L11421-542 L11421-544 L11421-545 TPN-C136 TPN-I130 TPN-I131 TPN-I132 TPN-I133 TPN-I134 TPN-Q207 TPN-Q208 TPN-Q209 TPN-Q210 Specifications: ht03xl battery for hp, Battery Type: Li-ion Voltage: 11.55V Capacity: 41.7WH 3470mAh;Cells: 3-cell; Color: Black Packages includes: l11119-855 hp battery, with Two Free Screwdrivers; HTO3XL Battery for hp model 15-cs0085cl 15-cs0073cl 15-cs3075cl 15-cs3073c 15t-cs300 15t-cs200 15-da0021cy 15-da0011la 15t-db000 14-cf0013dx 14-cf0051od 15-ef0023dx Compatible devices: HP HT03XL Rechargeable li-ion Battery, for HP Pavilion 14-CE 14-CF 14-CK 14-cm 14-DF 14-DH 14-MA 14Q-CS 14Q-CY 14S-CF 14S-CR 15-CS 15-CW 15-DA 15-DB 15G-DR 15T-DA 15T-DB 17-by 17-CA Series 15-cs0053cl 15-cs1063cl 15-cs2064st 15-cs3063cl 15-cs3075cl 15t-cs200 15-da0032wm 15-da0014dx 17-by0063cl 17-by2075cl 17-by0071cl 17-by1022cl 17-by0088cl 17-by0062st 17-by0020cy 17-by0017cy 17-by1003cy 17-ca1010ds 17-by0019ds 17-by2003ca 17-by3613dx 17-by1972cl 17-ca1031dx 17-ca1061nr 17-ca0054cl
slim, lightweight, and powerful—the Lenovo ThinkPad T490s combines 8th Gen Intel Core i5 performance, 8GB ,16GB RAM, and a fast 256GB SSD in a premium, portable chassis built for mobile professionals.
Genuine-spec Touch Bar assembly with integrated flex cable for 2020 MacBook Pro 13″ models (A2251, A2289, A2338)—restores full Touch ID and Touch Bar functionality with OEM-level fit and performance. Compatible With: MacBook Pro 13″ (2020): A2251 (Intel Core i5/i7, two Thunderbolt ports) A2289 (Intel Core i5/i7, four Thunderbolt ports) A2338 (Apple M1 chip, two Thunderbolt ports) MacBook Pro 13″ (2020): A2251 (Intel Core i5/i7, two Thunderbolt ports) A2289 (Intel Core i5/i7, four Thunderbolt ports) A2338 (Apple M1 chip, two Thunderbolt ports) A2251 (Intel Core i5/i7, two Thunderbolt ports) A2289 (Intel Core i5/i7, four Thunderbolt ports) A2338 (Apple M1 chip, two Thunderbolt ports) Includes: Complete Touch Bar module with integrated flex cable, Touch ID sensor, and ambient light sensor—ready for direct connection to the logic board. Functionality: Fully restores dynamic Touch Bar controls, system functions, app shortcuts, and Touch ID (fingerprint authentication and power button). OEM-Quality Build: Matches Apple’s original design in responsiveness, finish, and sensor alignment—ensures seamless integration with macOS. Color Options: Available in Space Gray and Silver to match your MacBook’s top case (confirm your model’s color before ordering). Installation Note: Requires full top case disassembly and careful handling of adhesive and connectors. The flex cable routes under the speakers and connects near the logic board—precision is essential. Recommended for experienced technicians.
Apple MacBook Pro 16" A2141 2019 Logic Board i7 2.6GHz 16GB 512GB 4GB VGA Apple MacBook Pro 16″ A2141 2019 Logic Board i7 2.6GHz 16GB 512GB 4GB VGA Intel 2.6 GHz Six Core i7-9th gen 16 GB RAM 512 GB SSD AMD RADEON PRO 5300M 4GB Intel UHD Graphics 630 Intel 2.6 GHz Six Core i7-9th gen 16 GB RAM 512 GB SSD AMD RADEON PRO 5300M 4GB Intel UHD Graphics 630
Lexar NM620 1TB SSD, M.2 2280 PCIe Gen3x4 NVMe 1.4 Internal SSD, Up to 3500MB/s Read, 3000MB/s Write, 3D NAND Flash Internal Solid State Drive for PC Enthusiasts and Gamers (LNM620X001T-RNNNG) About this item High-speed PCIe Gen3x4 interface: Lexar 1TB SSD up to 3500MB/s read and 3000MB/s write – NVMe 1.4 is supported. Lexar Internal SSD M.2 2280 form factor with 3D NAND Lexar Solid state drive maintains 6x the speed of a SATA-based SSD. Lexar SSD is ideal for PC enthusiasts and gamers. Lexar Internal solid state drive is shock and vibration-resistant without moving parts.
WiWU Skin Zero Sleeve – Ultra-thin Lycra laptop case with faux-fur lining and scratch-resistant protection, available in multiple sizes.Sleek, featherlight, and travel-ready for everyday carry without the bulk. Model: WiWU Skin Zero Sleeve Sizes: Available for 13″, 14″, and 16″ laptops Material: Eco-friendly water-resistant Lycra exterior Interior: Faux-fur lining to protect against scratches and minor bumps Design: Ultra-slim profile that fits easily into backpacks or briefcases Weight: Approximately 280–330 g, depending on size Colors: Black, Gray, Purple, Burgundy Closure: Secure magnetic or zipper closure (varies by version) Features: Lightweight, minimal branding, soft internal cushioning, stylish and durable build
Gain the competitive advantage with the Bloody ES7, featuring a high-performance 6000 CPI PixArt Optical Engine. With ultra-fast 1ms click response and customizable 16.8 million color RGB lighting, this mouse is built for gamers who demand precision, speed, and comfort in every match. The A4Tech Bloody ES7 is a professional-grade esports tool designed to translate every hand movement into on-screen action with 1:1 tracking accuracy. Driven by the reliable PixArt Optical Engine, it eliminates “angle snapping” and artificial corrections, ensuring your aim remains raw and precise. Its ergonomic symmetrical shape supports various grip styles, while the anti-sweat matte finish ensures you stay in control even during the most intense gaming sessions. PixArt Optical Engine (6000 CPI): High-precision tracking with 5-level adjustable sensitivity (1000/1200/1600/2000/6000 CPI). Fine-tune your control via software to suit any game genre. Lightning-Fast 1ms Response: Equipped with ahead-of-the-curve technology, the ES7 reacts instantly to your clicks, providing the low-latency performance required for competitive play. Vibrant RGB Lighting: Immerse yourself in your gaming setup with 16.8 million customizable RGB colors and dynamic lighting effects. Customizable “M” Button: The dedicated M button can be programmed via software to execute complex macros or combined functions, putting more power at your fingertips. Extreme Durability: Built to last, the primary buttons are rated for over 10 million clicks, and the high-quality scroll wheel is tested for over 500,000 scrolls. Braided 1.8m Cable: The robust, tangle-free braided cable ensures a stable connection and long-term durability against wear and tear. Sensor: PixArt Optical Engine Resolution: 100 – 6,000 CPI Report Rate: 125 – 1,000 Hz (Adjustable) Key Response: 1 ms Acceleration: 15 g Tracking Speed: 45 ips Frame Speed: 6,000 fps Buttons: 7 Buttons Memory: 256K Onboard Memory Interface: USB Wired (1.8m Cable) System Requirements: Windows 7/8/8.1/10/11 or later Bloody ES7 Esports Gaming Mouse Quick Start Guide
SanDisk Ultra Flair USB 3.0 – SDCZ73 – High-speed flash drive with sleek metal design.Up to 150MB/s transfer speeds and password protection software included. Model: SanDisk Ultra Flair USB 3.0 Flash Drive (SDCZ73) Interface: USB 3.0 (Backward compatible with USB 2.0) Read Speed: Up to 150MB/s (on supported USB 3.0 ports) Capacity Options: 64GB / 128GB / 256GB Material: Sleek and durable metal casing Design: Compact with built-in keyring loop Security: Includes SanDisk SecureAccess software for password protection Compatibility: Windows, macOS (reformat may be required), Linux Dimensions: Approx. 42.42 x 13.21 x 6.60 mm Weight: Approx. 5.2 grams
PCE M8-700 UPS (line-interactive) — 700 VA / 360 W backup unit for 220–240 V input. Protects PCs, routers, small electronics from outages and voltage swings. The PCE M8-700 is a line-interactive UPS designed for home or small office use. It provides backup power, voltage regulation (AVR), surge protection, and supports automatic switching during outages. Ideal for desktop PCs, network gear, monitors, or point-of-sale systems. Features & Capabilities Line-interactive topology: regulates input voltage without switching to battery when voltage fluctuates mildly. Automatic Voltage Regulation (AVR) to correct undervolt/overvolt conditions. Simulated (stepped) sine wave output in battery mode. Surge, overload, short circuit, discharge protections built in. Cold start capability (ability to power on from battery with no mains) LED + audible alarms for status (battery mode, overload, fault) USB / RS232 interface in some variants for power management (shutdown, monitoring) Technical Specifications What “Input 220–240 VAC, 50/60 Hz, 3.7 A” Means (and Caveats) If the specification you’re giving is “3.7 A” at input, that corresponds to a maximum input current draw when the UPS is handling a heavy load or during charging cycles. At 230 V × 3.7 A ≈ 850 W of input capacity. The unit’s 360 W output means there’s overhead for losses, inverter inefficiency, battery charging, etc. The UPS must operate within the stated voltage and frequency ranges — if input is too low or too high, it may switch to battery or go into protection mode.
A high-performance pre-owned MacBook Pro 15" (2015) with a stunning Retina display, upgraded 16GB RAM, 128GB SSD, and powerful 2GB dedicated graphics—ideal for developers, creatives, and power users seeking reliable Apple performance.
TP-Link AC1200 Archer C50 Wireless Dual Band Router Support smooth 4K streaming with AC1200 Wi-Fi 4 external antennas provide stable wireless connections and optimal coverage Easy network management at your fingertips with TP-Link Tether Supports IGMP Proxy/Snooping, Bridge, and Tag VLAN to optimize IPTV streaming Supports Access Point mode to create a new Wi-Fi access point TP-Link AC1200 Archer C50 Wireless Dual Band Router Support smooth 4K streaming with AC1200 Wi-Fi 4 external antennas provide stable wireless connections and optimal coverage Easy network management at your fingertips with TP-Link Tether Supports IGMP Proxy/Snooping, Bridge, and Tag VLAN to optimize IPTV streaming Supports Access Point mode to create a new Wi-Fi access point TP-Link Archer C50 – AC1200 Wireless Dual Band Router Wireless Speed: Up to 1200 Mbps (300 Mbps on 2.4GHz + 867 Mbps on 5GHz) Wi-Fi Standard: 802.11ac – 3x faster than wireless N speeds Bands: Dual Band (2.4GHz & 5GHz) for reduced interference and better performance Antenna: 4 External Antennas for strong and stable wireless coverage Ports: 4× LAN, 1× WAN (10/100 Mbps) Advanced Features: Parental Controls, Guest Network, IPv6 Support, Access Control Security: WPA/WPA2 encryption for secure wireless connections Ease of Use: Easy setup with TP-Link Tether App Ideal For: HD streaming, online gaming, and high-speed downloads in homes and small offices
RK ROYAL KLUDGE RK61 Wireless 60% Mechanical Gaming Keyboard, Ultra-Compact 60 Keys Bluetooth Mechanical Keyboard with Programmable Software (Blue Switch, White) Model: RK ROYAL KLUDGE RK61 Layout: 60% compact layout (61 keys, no number pad or function row) Switch Type: Mechanical switches (Red – Linear, Blue – Clicky, Brown – Tactile) Connectivity: Bluetooth 5.0 (connects up to 3 devices) USB-C Wired Optional 2.4GHz Wireless (on some versions) Connectivity: Bluetooth 5.0 (connects up to 3 devices) USB-C Wired Optional 2.4GHz Wireless (on some versions) Backlight: RGB LED with 18+ lighting modes and effects Battery: 1450mAh rechargeable lithium battery Key Rollover: Full N-Key rollover, anti-ghosting Compatibility: Windows, macOS, Android, iOS Software Support: Key remapping and lighting customization (Windows only) Build Quality: ABS plastic frame, double-shot keycaps Dimensions: Approx. 290 x 100 x 40 mm Weight: ~500g Extras: Hot-swappable switch support (on select versions)
Gaming-optimized in-ear headphones in bold red, featuring a built-in microphone, tangle-free flat cable, and signature HyperX comfort—designed for mobile gaming, console use, and on-the-go communication. Model: HyperX Cloud Earbuds (Red Edition) Color: Vibrant Red earbuds with matching red cable accents Type: In-ear headphones with integrated microphone Designed For: Mobile gaming (iOS/Android), Nintendo Switch, PC, and everyday use Key Features: Built-in Microphone: Clear voice pickup for in-game chat, calls, and voice commands Tangle-Free Flat Cable: Durable, lightweight, and resistant to knots Ergonomic Fit: Includes 3 sizes of silicone ear tips (S/M/L) for secure, comfortable wear Universal 3.5mm Jack: Compatible with any device with a standard headphone/mic combo port Works with Nintendo Switch, PC, smartphones, tablets, and more Gaming-Grade Audio: Tuned for immersive sound with enhanced bass and vocal clarity In-Line Controls: Convenient mic mute and call answer/end button Built-in Microphone: Clear voice pickup for in-game chat, calls, and voice commands Tangle-Free Flat Cable: Durable, lightweight, and resistant to knots Ergonomic Fit: Includes 3 sizes of silicone ear tips (S/M/L) for secure, comfortable wear Universal 3.5mm Jack: Compatible with any device with a standard headphone/mic combo port Works with Nintendo Switch, PC, smartphones, tablets, and more Works with Nintendo Switch, PC, smartphones, tablets, and more Gaming-Grade Audio: Tuned for immersive sound with enhanced bass and vocal clarity In-Line Controls: Convenient mic mute and call answer/end button Technical Specifications: Driver Size: 14.2 mm Frequency Response: 20 Hz – 20 kHz Impedance: 60 Ω Sensitivity: 100 dB Cable Length: 1.2 m (3.9 ft) Connector: 3.5mm 4-pole (CTIA standard) Driver Size: 14.2 mm Frequency Response: 20 Hz – 20 kHz Impedance: 60 Ω Sensitivity: 100 dB Cable Length: 1.2 m (3.9 ft) Connector: 3.5mm 4-pole (CTIA standard) What’s in the Box: HyperX Cloud Earbuds (Red) 3 pairs of silicone ear tips (S/M/L) Carrying pouch Quick start guide HyperX Cloud Earbuds (Red) 3 pairs of silicone ear tips (S/M/L) Carrying pouch Quick start guide Ideal For: Mobile gamers (PUBG Mobile, Call of Duty, Fortnite, etc.) Nintendo Switch players Commuters and students needing compact, durable audio Gamers seeking console-compatible audio with mic support Mobile gamers (PUBG Mobile, Call of Duty, Fortnite, etc.) Nintendo Switch players Commuters and students needing compact, durable audio Gamers seeking console-compatible audio with mic support
A modern pre-owned Dell Latitude 5420 with 14" display, 11th Gen Core i5, 8GB RAM, and 256GB SSD—delivering reliable performance, enterprise security, and all-day productivity in a compact business laptop.
Replacement Audio Board with IPD Cable for MacBook Air M1 2020 (A2337). Compatible with part numbers 820-01929-A, 821-03452-A, 923-03672, 923-03663, and more. Ideal for fixing audio issues, headphone jack problems, or sound board failures. The Audio Board with IPD Cable for MacBook Air (M1, 2020) is a high-quality replacement spare part designed to restore proper sound functionality on MacBook Air A2337 models. If your MacBook is experiencing no sound output, headphone jack issues, distorted audio, or audio board failure, this replacement board provides a reliable solution. It includes the required IPD cable for proper installation and connection, making it ideal for professional repairs and technician use. Replacement Audio Board + IPD Cable for MacBook Air M1 Fixes audio issues such as no sound, headphone jack failure, or audio distortion Includes IPD cable for correct connection and repair High-quality build for stable and long-term performance Ideal for technicians, repair shops, and spare part replacement Compatible with multiple Apple part numbers for easy matching ✔ MacBook Air (M1, 2020) A2337 Compatible only with MacBook Air A2337 (M1, 2020). Please match your device model and part number before ordering to ensure correct fit.
A1953 A1990 Battery Replacement for MacBook Pro 15″ Mid 2018 2019 EMC 3215 EMC 3359 Touch Bar MV902LL/A MV912LL/A MV922LL/A MV932LL/A MV942LL/A MV952LL/A MV962LL/A MV972LL/A MV902B/A MR962LL/A 【Specification】Voltage: 11.4V. Capacity: 83.6Wh 7336mAh. Battery Type: Li-ion. Condition:100% New from Manufacturer. Condition: Brand new, from high quality materials, top circuit boards and smart chip. 【Compatible Part Number】A1953 A1990 (EMC 3215) A1990 (EMC 3359) 020-02391 820-01095 080-333-400 2217-2548 MacBookPro15,1 MacBookPro15,3. 【Compatible Laptop Models】Battery replacement for MacBook Pro (15-inch, Model A1990, Mid 2018, Mid 2019) : MR962LL/A, MR972LL/A, MR932LL/A, MR942LL/A, MV922LL/A, MV932LL/A, MV902LL/A, MV912LL/A, MV942LL/A, MV952LL/A, MV962LL/A, MV972LL/A, MR952LL/A, MV902xx/A, MV912, MV922, MV932, MV942, MV952, MR932, MR942, MR952, MR962, MR972, MUQH2. 【ANTIEE Promise】Everyone of our replacement batteries has tested with strict quality control standards to ensure the true capacity, stable current and low self-discharge. All ANTIEE batteries are UL / CE / FCC / RoHS Certified for safety, we are confident in the performance of the replacement battery.