BTI L18D3PG2-BTI 11.52V 57Wh Li-Ion Battery for Lenovo Chromebooks

Power up your Lenovo Chromebook with confidence using the BTI L18D3PG2-BTI 11.52V 57Wh Li-Ion Battery. engineered to meet or exceed OEM standards, this replacement battery delivers dependable, long-lasting performance for everyday tasks, classroom use, and on-the-go computing. Designed to fit a range of Lenovo Chromebooks—including the Chromebook 14e, S345-14AST series, and their 81WX/81MH variants—this battery ensures a secure, plug-and-play replacement that preserves the slim, lightweight profile users expect from modern Chromebooks. Whether you’re a student, remote worker, or traveler, this battery is built to keep you productive without interruptions, offering strong power delivery, reliable cycle life, and a safer charging experience with integrated protection features.

• Extended runtime with high-energy capacity: The 57Wh capacity paired with an 11.52V configuration provides meaningful hours of uptime between charges. This translates to long study sessions, uninterrupted streams, and smooth productivity across web apps, documents, and cloud-based tools—without the constant hunt for an outlet.
• OEM-compatible design for Lenovo Chromebooks: This BTI battery is specifically engineered to seamlessly fit Lenovo Chromebook 14e, 14e 81MH, and S345-14AST families, including the S345-14AST 81WX variant. The precise form factor, connector alignment, and mounting points preserve the notebook’s original balance and ergonomics while delivering reliable power.
• Safe, high-quality Li-ion chemistry: Built with premium lithium-ion cells and protective electronics, the battery includes safeguards against overcharge, short circuit, and thermal extremes. A sturdy enclosure reduces the risk of puncture and protects critical cells, promoting a safer charging and operating environment in classrooms, offices, and travel.
• Slim, lightweight design for portability: This replacement battery emphasizes a compact footprint and reduced weight, ensuring that your Chromebook remains easy to carry. The slim profile helps maintain a comfortable keyboard angle and chassis slimness, making it an ideal upgrade for users who value mobility without sacrificing battery life.
• Clear OEM references for easy ordering: Matches multiple OEM part numbers—L18D3PG2, L18M3PG2, 5B10T04978, 5B10T04979, 5B10T04980, 5B10W13939, 5B10W13940, and 5B10W13941—facilitating quick verification and simple reordering through Lenovo-supported suppliers.

Technical Details of BTI L18D3PG2-BTI 11.52V 57Wh Li-Ion Battery

• Battery type: Rechargeable Li-ion battery designed for laptop and Chromebook use.
• Voltage: 11.52V operating voltage to match Lenovo Chromebook power requirements.
• Capacity: 57Wh (watt-hours) providing extended runtime for daily workloads and multimedia tasks.
• Compatibility: Lenovo Chromebooks including 14e, 14e 81MH, S345-14AST, and S345-14AST 81WX families; designed to align with the OEM form factor and connector layout.
• OEM part numbers: L18D3PG2, L18M3PG2, 5B10T04978, 5B10T04979, 5B10T04980, 5B10W13939, 5B10W13940, 5B10W13941 for straightforward verification during purchase.
• Design and safety: Slim, space-efficient design with built-in protection circuits to guard against overcharge, overdischarge, short circuits, and excessive temperatures.
• Form factor: Compact, lightweight battery pack that preserves the original Chromebook’s slim profile and balanced weight distribution.
• Certifications: Built to meet common safety and performance standards for third-party replacement batteries used in Chromebook ecosystems.

How to Install BTI L18D3PG2-BTI 11.52V 57Wh Li-Ion Battery

Installing this replacement battery is a straightforward process that can extend the life of your Lenovo Chromebook. Follow these general steps to replace your battery safely and effectively. Note: equipment safety and local regulations apply; if you’re unsure, seek professional assistance.

• Power off the Chromebook completely, then unplug any connected accessories or chargers.
• Place the device on a soft, clean surface to prevent cosmetic damage during opening.
• Remove the back cover screws with the appropriate screwdriver and gently pry the case open to access the internal components.
• Locate the original battery and disconnect the battery connector carefully from the motherboard to avoid damaging the socket.
• Remove the old battery from its cavity, taking note of how it is seated and secured within the chassis.
• Align the new BTI battery with the mounting points, ensuring connectors line up with the motherboard socket.
• Reconnect the battery connector securely, carefully reinstall the battery into its cavity, and reassemble the back cover, ensuring all screws are seated snugly but not over-tightened.
• Power on the Chromebook and allow the battery to calibration-cycle by charging to full and discharging once or twice to stabilize the battery’s reported capacity.
• Dispose of the old battery in accordance with local regulations and recycling guidelines, avoiding puncture or exposure to heat.

Frequently asked questions

• Q: Is this BTI battery compatible with my Chromebook 14e or S345-14AST? A: Yes. The BTI L18D3PG2-BTI 11.52V 57Wh Li-Ion Battery is designed to fit Lenovo Chromebooks in the 14e and S345-14AST families, including variants such as the 81MH and 81WX series. Compatibility is verified through OEM part numbers and connector layouts.
• Q: What is the expected runtime with this battery? A: Runtime depends on usage, but with a 57Wh capacity at 11.52V, you can expect several hours of typical productivity, web browsing, document editing, and media consumption between charges. Light to moderate usage will yield longer intervals between charges.
• Q: How do I know I’m buying the correct replacement battery? A: Check that the OEM part numbers (L18D3PG2, L18M3PG2, 5B10T04978, 5B10T04979, 5B10T04980, 5B10W13939, 5B10W13940, 5B10W13941) and the target Chromebook model match your device. The slim form factor and connector alignment should align with the original hardware.
• Q: Does this battery come with safety protections? A: Yes. The battery includes built-in protections against overcharge, over-discharge, short circuits, and thermal events to promote safe charging and operation in varied environments.
• Q: Is professional installation recommended? A: If you’re comfortable with basic electronics and device teardown, you can install this battery yourself by following standard safety steps. If you’re unsure, consult a professional technician or an authorized service center to prevent damage to the Chromebook.
• Q: What warranty or support is available? A: Warranty terms vary by supplier; many BTI replacement batteries include a limited warranty against manufacturing defects. Always check the seller’s warranty policy at the time of purchase for coverage details and claim processes.
• Q: Does the battery ship with any installation guide? A: Some listings include a brief installation guide or link to the manufacturer’s instructions. If not included, refer to generic battery replacement resources for Chromebooks and follow cautionary safety steps during installation.