If your Lenovo ThinkPad T490 or T14 Gen 1 is struggling to hold a charge, this genuine 50Wh 3-cell battery restores original runtimes—tested, warranted, and delivered across Pakistan. At Rs. 13,799, it's a direct OEM replacement that brings back 5-7 hours of web and office work, matching the factory performance you got on day one.
Why choose this battery for your ThinkPad?
This 50Wh 3-cell internal pack (L18M3P74) is designed for the slim form factor of modern business ThinkPads. Unlike bulky 6-cell external batteries, this internal unit keeps your laptop lightweight and travel-friendly. It’s bench-tested at our shop in Hafeez Center, Gulberg III, Lahore—we verify capacity, cycle count, and cell balance before shipping. Every battery carries a 30-day check warranty, so if it doesn’t meet your expectations, bring it back for a full replacement or refund.
Full specifications and compatibility
| Brand | Lenovo |
|---|---|
| Capacity | 50Wh |
| Voltage | 11.55V |
| Cell Configuration | 3-cell internal |
| Chemistry | Li-Polymer / Li-Ion (matched to OEM spec) |
| Compatible Models | ThinkPad T490, ThinkPad T14 Gen 1, ThinkPad T495, ThinkPad T14 Gen 2, ThinkPad P43s |
| Cycle Life (Rated) | 400-600 full cycles |
| Condition | Genuine — Tested |
| Warranty | 30-day check warranty |
This battery fits not only the T490 and T14 Gen 1 but also the T495, T14 Gen 2, and P43s. The part number L18M3P74 is interchangeable with several other OEM numbers—if your current battery sticker shows a different number, message us on WhatsApp 0314 4000131 to confirm compatibility. We keep a database of interchangeable parts and can cross-check your laptop's FRU.
Real-world battery life and performance
With this 50Wh pack and balanced settings (70% brightness, Wi-Fi on, mixed use), expect:
- Web + Office work: 5-7 hours
- Video playback: 6-8 hours
- Code compilation / Photoshop: 2-3 hours
- Gaming or heavy GPU load: 60-90 minutes
These figures match Lenovo published specs for the listed models. If your old battery was giving you 2 hours, the new one will restore the original full runtime. Our testing process ensures the BMS chip is correctly flashed, so Windows and Lenovo Vantage report accurate capacity and cycle count—no 'plugged in, not charging' errors.
Battery care tips to extend lifespan
To get the most out of your new battery, avoid leaving the laptop plugged in at 100% all day. Keep the charge level between 40% and 85% for longest cell life. If you use the laptop primarily on AC, set a charge threshold in Lenovo Vantage to stop charging at 80%. This simple habit can double the battery's cycle life beyond the rated 400-600 cycles.
Why buy from N.N Laptops?
We are a trusted seller in Lahore’s Hafeez Center, operating from Shop 66A, 3rd Floor, Gulberg III. Every battery goes through a 5-point bench test before listing: we measure capacity (above 95% of rated Wh), check cycle count (under 100 cycles), verify cell balance (within 50mV), run a full charge/discharge cycle, and inspect for swelling or damage. If you’re in Lahore, bring your laptop for free in-shop installation—we’ll calibrate the battery so Windows reads the correct capacity from day one. For customers across Pakistan, we offer same-day delivery in Lahore and nationwide shipping via TCS or Leopards to Karachi, Islamabad, Rawalpindi, Faisalabad, Multan, Peshawar, Sialkot, and more. Simply WhatsApp 0314 4000131 to confirm stock and place your order. Browse all our laptop batteries on nnlaptops.com.
Frequently asked questions
What part numbers does this battery match?
This pack matches OEM part numbers L18M3P74, 5B10W13956, 5B10W13957, and 5B10W13958. Always check your old battery sticker—if it’s not on this list but your laptop model is, message us. Many ThinkPad T490/T14 Gen 1 units use one of these four variants.
Is this a genuine Lenovo battery or a compatible one?
We stock both genuine Lenovo pulls (with original casing and connectors) and high-grade A-class compatible cells. Both are bench-tested and carry the same 30-day warranty. Tell us your preference on WhatsApp 0314 4000131, and we’ll send you photos of the exact unit before shipping.
How long does delivery take?
Lahore orders are delivered free on the same day (order before 4 PM). For Karachi, Islamabad, Rawalpindi, Faisalabad, Multan, Peshawar, Sialkot, and other cities, we ship via TCS or Leopards—delivery takes 1-3 working days.
What is the warranty?
Every battery comes with a 30-day check warranty. If it fails to charge, shows wrong capacity, drops below 85% of rated Wh, or develops swelling within 30 days, bring it back to our shop with the invoice for a full replacement or refund. No questions asked.
N.N Laptops — Shop 66A, 3rd Floor, Hafeez Center, Gulberg III, Lahore. WhatsApp / Call 0314 4000131. Lahore delivery, nationwide shipping via TCS/Leopards, 30-day check warranty. Visit nnlaptops.com for more laptop parts and accessories.
