Lenovo ThinkPad T440 / T450 / X240 Battery: The 45N1130 Guide

Lenovo ThinkPads are built to last. Many T440, T450 and X250 laptops from office clear-outs are still running well in the UAE today. The part that usually gives up first is the battery.

The good news: many of these ThinkPads have a removable back battery. You can change it in 10 seconds, no tools needed.

Two batteries in one ThinkPad

Models like the T440, T450, T460 and X240–X270 have two batteries:

• Internal battery: inside the laptop, under the bottom cover.
• External (back) battery: the one you can click out from the back. This is the 45N1130 / 68+ type.

If your laptop runs but only for a short time, replacing the back battery is the quickest and cheapest fix.

Which ThinkPads use the 45N1130 battery?

Other part numbers for the same battery: 45N1124, 45N1125, 45N1126. Check the label on your old battery to be sure.

How to change it

1. Shut down the laptop and unplug the charger.
2. Turn it over and slide both battery locks to "open".
3. Pull the old battery out.
4. Click the new battery in and slide the locks back.
5. Charge it to 100% with the charger before first use.

A typical case

Say you bought a renewed ThinkPad T450 for university. It works perfectly, but the battery shows "0% available, plugged in" for the back battery. A new 45N1130 battery brings your unplugged time back, and you keep using a laptop you already know.

ThinkPad parts at Top Tech UAE

• 45N1130 battery for ThinkPad T440 / T450 / X240 / X250
• ThinkPad 90W charger with rectangle tip

New replacement battery, 12-month warranty, Cash on Delivery, 1–2 day delivery across the UAE.

FAQ

Can I use the laptop with only the internal battery?
Yes, most of these models run on the internal battery alone, but for a much shorter time.

Is the 6-cell battery bigger?
Some 68+ batteries stick out a little at the back. That is normal for this type.

Not sure? WhatsApp a photo of the battery label to +971 56 265 5845.