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Lenovo ThinkPad T440s

Dataset id: lenovo-thinkpad-t440s

RAM coverage
high confidence · 85 reports
Storage coverage
high confidence · 236 reports
Battery coverage
high confidence · 85 reports

Lenovo ThinkPad T440s: socketed memory observed in 85 field reports, 2 memory slots; SATA storage observed in 236 reports, with no NVMe drive in those reports; battery part 45N1773 reported.

RAM

Socketed memory observed in 85 field reports.

Memory slots: 2. 2% of reports for this model had at least one empty slot.

Memory type: DDR3. Observed memory speed: 1600 MT/s.

Largest observed configuration: 12 GB (36 reports).

Recorded maximum configuration: 12 GB, firmware-reported maximum (SMBIOS "Maximum Capacity", modal across 85 probes).

Based on 85 field reports, 100% agreement, high confidence.

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Storage

SATA storage observed in 236 field reports; no NVMe drive appeared in those reports.

NVMe observed in 0% of 236 reports (a rounded share of reports, not an exact drive count).

Drives observed in reports: Samsung SSD 850 (22), SanDisk SSD U110 (17), CT240BX500SSD1 (11).

Installed capacities observed: 256 GB (22), 16 GB (16), 500 GB (15), 240 GB (15).

Curated physical specifications: not verified.

Based on 236 field reports, high confidence.

Battery

Front battery

Battery part numbers observed: 45N1773 (49), 45N1111 (28), 45N1113 (2), 01AV459 (1).

Capacity observed: 23.2 Wh (77), 23.5 Wh (2), 24 Wh (1).

Voltage observed: 11.1 V (11100 mV).

Chemistry observed: Li-ion.

Manufacturers observed: SANYO (49), SONY (28), LGC (2), SMP (1).

This slot appeared in 80 of 85 reports for this model, 100% agreement, high confidence.

Other models reporting this part

Models reporting the same part number are listed as a factual cross-reference only: this is not a compatibility claim and not a guarantee that the part will work in another model — check the part number printed on your own battery before ordering.

Before you order, verify the replacement: match the exact part number printed on your current battery, and check voltage, connector, and dimensions before buying.
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Rear battery

Battery part numbers observed: 45N1127 (30), 45N1775 (24), 45N1777 (6), 45N1734 (5).

Capacity observed: 23.5 Wh (28), 23.2 Wh (25), 47.5 Wh (9), 71.3 Wh (6).

Voltage observed: 11.4 V (11400 mV).

Chemistry observed: Li-ion.

Manufacturers observed: SANYO (39), LGC (35), SMP (2), Batt Manufacture (1).

This slot appeared in 78 of 85 reports for this model, 100% agreement, high confidence.

Other models reporting this part

Models reporting the same part number are listed as a factual cross-reference only: this is not a compatibility claim and not a guarantee that the part will work in another model — check the part number printed on your own battery before ordering.

Before you order, verify the replacement: match the exact part number printed on your current battery, and check voltage, connector, and dimensions before buying.
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Sources

Fields recorded directly from hardware (firmware/PCIe reports) are distinguished below from curated facts hand-verified against manufacturer documentation.