🔋 Laptop Battery for Lenovo ThinkPad E40, E420, T420, T520, W520, SL410K, T410i, E520, T510, E50

Bring your Lenovo ThinkPad back to life with this high-quality replacement battery, compatible with a wide range of ThinkPad models including T-series, W-series, E-series, and SL-series laptops. Whether you're a professional or student, this battery delivers dependable performance and long-lasting power.

⚙️ Specifications

• Battery Type: Lithium-Ion (Li-ion)

• Voltage: 10.8V

• Capacity: 4400mAh / 48Wh

• Number of Cells: 6 Cell

• Color: Black

• Recharge Cycles: 500+

• Condition: Brand New / Grade A

• Certifications: CE, FCC, RoHS, UN38.3

💻 Compatible Lenovo ThinkPad Models

• T Series:

  • T410 / T410i / T420 / T510 / T520

• W Series:

  • W510 / W520 / W530i

• E Series:

  • E40 / E420 / E50 / E520

• SL Series:

  • SL410 / SL410K / SL510

🧩 Compatible Part Numbers

• 42T4799

• 42T4781

• 42T4753

• 42T4785

• 42T4789

• 42T4791

• 42T4798

• ASM & FRU variants for listed models

⭐ Key Features & Advantages

• ✅ OEM-Grade Replacement – Matches or exceeds original performance

• 🔋 4–6 Hours Runtime – Ideal for meetings, travel, or remote work

• ⚡ Fast Charging Support – Recharges fully in under 3 hours

• 🔒 Safety First – Equipped with overcharge, overheat, and short-circuit protection

• 🔄 Stable Power Output – No drops or fluctuations during use

• 🌱 Eco-Friendly Manufacturing – RoHS-compliant, lead-free design

• 📜 Global Standards Compliance

  • CE / FCC / RoHS

  • UN38.3 Certified

  • ISO 9001 & 14001

💼 Why Choose This Battery?

• 🔁 Perfect for Replacing Old or Faulty Batteries

• 🛡️ Tested for Longevity and Reliability

• 📦 Ready-to-Ship Across the UAE

• 💼 Ideal for Business, Students, & IT Professionals

🧠 Battery Care Tips

• 🔋 Keep charge between 20% – 80% for optimal lifespan

• 🌡️ Avoid high heat or freezing conditions

• 🔌 Unplug once fully charged to prevent trickle damage

• 🔄 Calibrate monthly (full discharge + recharge)

• 💡 Enable power saving mode when on battery

❓ FAQs

Q1: How do I confirm compatibility with my ThinkPad?
Match your laptop model and battery part number with the list above or check your existing battery's label.

Q2: How long does the battery last per charge?
Typically 4–6 hours, depending on system usage and configuration.

Q3: Is this battery brand new?
Yes, it is 100% brand new, unused, and quality tested before shipping.

Q4: Is this safe to travel with?
Absolutely! It's UN38.3 certified, making it safe for airline travel.

Q5: Can I replace the battery myself?
Yes, installation is easy and does not require tools or technical skills.

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