🔋 Lenovo ThinkPad 68+ 48 Wh Battery for X240, X250, X260, X270, T440, T450, T460 🔋

🖥️ External battery 68+ | 6 cells | 10.8 V 4.4 Ah 48 Wh | LG Chem | FRU 45N1735

Genuine Lenovo ThinkPad 68+ external battery with 48 Wh nominal capacity, 6-cell, with LG Chem cells and the Lenovo FRU 45N1735 label. According to Lenovo it fits (directly or as an equivalent) the ThinkPad X240, X250, X260, X270, T440, T440s, T450, T450s, T460, T460p, T470p, T550, T560, W550s, P50s, L450, L460, L470 and A275. Part sourced from a working device and tested - we guarantee 100% functionality.

⚙️ PRODUCT CHARACTERISTICS

This is a removable battery fitted from the bottom of the laptop, marked by Lenovo as 68+. In the Lenovo parts catalogue FRU 45N1735 is listed as “external, 6c, 2.2Ah, LiIon, LGC”, i.e. 6 lithium-ion 2.2 Ah cells in a 3S2P layout (marking 3INR19/66-2). Label details: NOM 10.8 V 4.4 Ah 48 Wh, rated capacity 4100 mAh, charge voltage limit 12.6 V, ASM P/N 45N1130, model 45N1130, manufactured 2018.04. We checked this exact unit with BatteryInfoView and the Windows battery report: full charge capacity 33.26 Wh against a design capacity of 47.52 Wh (approx. 70%, 30% wear), 337 charge cycles, voltage 12.08 V, cell manufacturer LGC. Windows rates the battery as working correctly; due to its age it runs shorter than a new one.

📋 TECHNICAL SPECIFICATIONS

Part name: External (removable) battery 68+
Brand: Lenovo ThinkPad
Compatible model: X240, X250, X260, X270, T440, T440s, T450, T450s, T460, T460p, T470p, T550, T560, W550s, P50s, L450, L460, L470, A275
Cell type: Li-ion, 6 cells (3S2P, 3INR19/66-2), made by LG Chem
Nominal voltage: 10.8 V (charging up to 12.6 V)
Nominal capacity: 4.4 Ah / 48 Wh (rated 4100 mAh)
Full charge capacity (test): 33.26 Wh (approx. 70% of the 47.52 Wh design capacity)
Cycle count: 337
Manufacture date: 2018.04
Condition: Used (removed from a working device, tested)
Warranty: 6 months
FRU: 45N1735
Replacement numbers (Lenovo, Equivalent): 45N1130 (ASM P/N on the label), 45N1734, 45N1736, 45N1767, 45N1129, 45N1131, 45N1133
Higher capacity 72 Wh substitutes (Lenovo, Substitute): 45N1737, 45N1738, 45N1777
Markings on the battery: 68+, ASM P/N 45N1130, 3INR19/66-2

🌟 KEY ADVANTAGES

🔹 Genuine Lenovo battery - factory FRU 45N1735 label and LG Chem cells, not a cheap replacement with an inflated capacity rating
🔹 Real, measured condition - 33.26 Wh and 337 cycles from the test of this exact unit, so you know how much runtime you are buying
🔹 One battery for many ThinkPads - Lenovo lists it or its equivalents in 19 models, from the X240 and T440 to the X270, T470p and L470
🔹 Tool-free replacement - the battery clips in from the bottom, no need to open the laptop
🔹 Spare battery for travel - in models with an internal battery, such as the X240, X250, T440s or T450s, a second 68+ battery extends work away from a socket

🔢 PART NUMBERS

FRU: 45N1735
Replacement numbers (Lenovo, Equivalent): 45N1130 (ASM P/N on the label), 45N1734, 45N1736, 45N1767, 45N1129, 45N1131, 45N1133
Higher capacity 72 Wh substitutes (Lenovo, Substitute): 45N1737, 45N1738, 45N1777
Lenovo marking: 68+
Compatibility according to Lenovo documentation:
According to Lenovo for FRU 45N1735:
• T450 (Type 20BU), T550 (Type 20CJ), X250 (Type 20CL), L450 (Type 20DS), W550s (Type 20E1), T560 (Type 20FH, 20FJ), P50s (Type 20FK)
According to Lenovo for equivalents 45N1734, 45N1736, 45N1767 (Equivalent):
• X240 (Type 20AL, 20AM), X250 (Type 20CL, 20CM), X260 (Type 20F5, 20F6), X270 (Type 20HM, 20HN, 20K5, 20K6), A275 (Type 20KC, 20KD)
• T440 (Type 20B6, 20B7), T440s (Type 20AQ, 20AR), T450 (Type 20BU, 20BV, 20DJ), T450s (Type 20BW, 20BX), T460 (Type 20FM, 20FN), T460p (Type 20FW, 20FX), T470p (Type 20J6, 20J7)
• T550 (Type 20CJ, 20CK), T560 (Type 20FH, 20FJ), W550s (Type 20E1, 20E2), P50s (Type 20FK, 20FL)
• L450 (Type 20DS, 20DT), L460 (Type 20FU, 20FV), L470 (Type 20J4, 20J5, 20JU, 20JV)

❓ WHEN SHOULD YOU REPLACE THE BATTERY?

• Problem with short runtime - the laptop runs flat after a few dozen minutes
• Problem with a battery that will not charge - the icon shows “plugged in, not charging” or a fixed percentage
• Problem with the laptop suddenly shutting down at a dozen or so percent
• Problem with a battery warning in Lenovo Vantage or in BIOS
• Problem with a missing external battery - the laptop runs only on the internal battery or only on the power adapter

🔧 INSTALLATION PROCESS

1. Save your work, turn off the laptop and disconnect the power adapter
2. Close the display and turn the laptop upside down
3. Slide the battery latches to the unlocked position and remove the old battery (order per Lenovo HMM: latches first, then the battery)
4. Insert the 45N1735 battery into the bay so the connector meets the laptop socket, and press it in until the latches click
5. Make sure the latches are in the locked position
6. Connect the power adapter, start the laptop and check that the battery is detected
Replacement by a technical service or a person experienced in laptop repairs is recommended.

🎯 INTENDED USE

The battery is intended for users of the ThinkPad X, T, W, P and L series models listed above who need a genuine 68+ battery to replace a worn one, or a spare battery for working away from the power adapter. It also suits laptops bought without an external battery. The exact appearance and condition of the item are shown in the photos.

✅ COMPATIBILITY GUARANTEE

The battery has been tested and works according to the 10.8 V 48 Wh specification. We guarantee compatibility within FRU 45N1735 and 100% functionality, covered by a 6-month warranty. In case of any compatibility problems, we offer a hassle-free return within 14 days.

📞 NEED HELP? CONTACT OUR EXPERTS!

Do you have questions about the compatibility of this battery with your ThinkPad? Our specialists will be happy to assist you. Contact us!
📱 Phone: +48-601-415357
📧 Email: sklep@abcdeal.pl

🦁 ABCDEAL - Your Trusted Lenovo Parts Specialist

We have been specialising in delivering genuine Lenovo laptop parts for years. Our experience allows us to offer top-quality products that meet the expectations of even the most demanding customers. Trust the experts and give your ThinkPad its mobility back.

🎯 Choose professionals - invest in high quality!

By choosing a tested, genuine Lenovo 68+ battery from our offer, you invest in safe cells and a known, measured condition instead of guesswork. Take advantage of ABCDEAL experience and get your battery runtime back.

Useful information:
📦 Want to know more about shipping and return conditions? Click here
❓ Have additional questions? Check our FAQ
🔗 All parts for this model: Lenovo ThinkPad X240 spare parts
🔗 All parts for this model: ThinkPad X series and X1 Carbon parts - all models
📘 Guide: Lenovo laptop main battery - how to choose