BTI WK06XL-BTI 11.58V 83WHR Li-Ion Battery

Power up your Lenovo ThinkPad with the trusted BTI WK06XL-BTI battery, the high-quality replacement designed to restore longevity and performance to your everyday workflow. Built for professionals who depend on dependable uptime, this Li-Ion notebook battery delivers reliable, consistent power for ThinkPad laptops on the go. While the model name suggests a higher energy figure, the documented specifications reflect a compact, practical 3-cell design that prioritizes safety, compatibility, and dependable recharge cycles. This battery is ideal for Lenovo ThinkPad L14 Gen 3, L15 Gen 3, and C14 Gen 1 models, giving you a straightforward plug-and-play replacement that returns your notebook to factory-like performance without the hassle of compatibility guesswork.

• Compatibility and fit: Specifically engineered to fit LENOVO THINKPAD L14 GEN 3, L15 GEN 3, and C14 GEN 1 laptops, ensuring seamless installation and reliable contact with the device’s power system. It’s a straightforward replacement that mirrors the barrel-and connector geometry of the original pack for a snug, secure installation.
• Reliable 3-cell Li-Ion design: This battery uses a proven 3-cell Li-Ion configuration, delivering steady output for everyday productivity tasks. The design emphasizes dependable discharge curves and consistent power delivery across typical laptop workloads, from word processing to video conferences and light design work.
• Voltage and capacity specifics: Officially listed as 11.25V with a 42Wh capacity in the technical specifications, offering a balanced blend of runtime and manageable weight. This makes it a practical option for users who want a portable, easy-to-carry battery that can power daily sessions without frequent recharging.
• OEM replacements and part numbers: Replaces OEM codes 5B11M89996, 5B11M89997, 5B11M89998 among others, including various L21M3PG1 family variants such as L21C3PG1, L21D3PG1, L21L3PG1, L21M3PG1, SB11F2. This broad compatibility ensures you’re selecting a battery designed to interoperate with Lenovo’s original charging ecosystem.
• Safety, quality, and reliability: Built with multiple protections—overcharge, short circuit, and overheating safeguards—to deliver a safer charging experience. The battery is manufactured to meet stringent safety standards, helping protect both the notebook and the user during operation and charging cycles.

Technical Details of BTI WK06XL-BTI Battery

• Battery Type: Li-Ion rechargeable
• Nominal Voltage: 11.25V
• Capacity: 42Wh
• Cells: 3-cell configuration
• Model family: L21M3PG1 and related variants
• Replaces OEM: 5B11M89996, 5B11M89997, 5B11M89998, L21C3PG1, L21D3PG1, L21L3PG1, L21M3PG1, SB11F2
• Fits: LENOVO THINKPAD L14 GEN 3, L15 GEN 3, C14 GEN 1
• Chemistry: Lithium-ion (Li-Ion)

How to install BTI WK06XL-BTI Battery

• Power down your ThinkPad completely, unplug any connected accessories, and place the laptop on a clean, stable surface.
• Flip the device and locate the bottom battery compartment. If needed, remove the access panel with the appropriate screwdriver, keeping track of any screws.
• Carefully release the old battery from its bay using the action latch(es). Lift the pack away from the chassis with a gentle, even motion to avoid stressing the connector.
• Align the BTI WK06XL-BTI replacement battery with the connector and slide it firmly into the bay until it seats with a click. Ensure all tabs and connectors are fully seated and the battery is securely held in place by the chassis.
• Reattach the bottom cover, reconnect any cables you may have detached, and power on the notebook. The system should recognize the new battery; if not, re-seat the battery and restart. It may take a few calibration cycles for battery reporting to settle.
• Charge to full before normal use and consider a few complete discharge/charge cycles to calibrate the battery gauge for accurate runtime estimates.

Frequently asked questions

• Q: Is this battery compatible with ThinkPad L14 Gen 3, L15 Gen 3, and C14 Gen 1?
  A: Yes. The BTI WK06XL-BTI battery is designed as a replacement for Lenovo ThinkPad models L14 Gen 3, L15 Gen 3, and C14 Gen 1, providing a straightforward swap to restore power and performance.
• Q: What is the capacity and voltage?
  A: The battery is specified at 11.25V nominal and 42Wh capacity. This combination offers a practical runtime for daily tasks while keeping weight and size manageable for consistent portability.
• Q: What OEM part numbers does this replace?
  A: It replaces OEM codes including 5B11M89996, 5B11M89997, 5B11M89998 and related L21M3PG1 family references such as L21C3PG1, L21D3PG1, L21L3PG1, L21M3PG1, SB11F2. If your battery is within the L21M3PG1 family or carries these OEM numbers, this BTI replacement should be compatible.
• Q: Does this battery include safety protections?
  A: Yes. It includes built-in protections against overcharge, short circuit, and overheating to help safeguard both the battery and your ThinkPad during charging and operation.
• Q: How should I care for this battery to maximize lifespan?
  A: Follow standard battery care practices: avoid exposing the battery to extreme heat, store in a cool, dry place when not in use, and use the laptop on a stable, ventilated surface. For best accuracy in runtime reporting, allow the battery to complete a few charge-discharge cycles initially and periodically recalibrate the gauge if your system indicates unusual power levels.
• Q: Is this an official Lenovo OEM battery?
  A: This is a high-quality BTI replacement designed to fit and function like the original, replacing the specified OEM parts. It’s built to meet or exceed the performance needs of the target ThinkPad models, with certifications and safety features common to reputable replacement packs.