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hardware:lenovo

Lenovo

ThinkPad <3

Slim Tip

Used since 2012, default on models since late 2013
Center pin is signal, inside is 20v possitive, outside is negative.

Resistance between negative and center, for available wattage identification:

Chargers

Tested with BM235 & Fluke 189

Brand Part number Watt Resistance
Lenovo 36200606 45 118 (=45W)
Lenovo 45N0261 65 286 (=65W)
Lenovo 36200252 90 547 (=90W)
Lenovo 5A10J75112 135 995 (=135W)
Lenovo 36200320 170 1992 (=170W)

USB-C Adapters

Using an adapter, that anounces itself higher than the USB-C power source, can cause the USB-C source to reset or melt due to too high power draw.
Tested with BM235 & Fluke 189

Brand Part number Watt Resistance Note
Lenovo 4X90U45346 45 118 (=45W) ~15cm USB-C Female to Slimp Male. Also included with 40AL140CWW powerbank.
Lenovo ThinkPlus 36003181 65 2193 (=???) 1.8m USB-C Male to Slimp Male, feels kinda like silicone cable
From AliExpress “65 or 87” 558 (=90W) ~15cm USB-C Female to Slimp Male Image, item link
From AliExpress 90 558 (=90W) 1.8m USB-C Male to Slimp Male, remind me to add image, identifies correctly

Table found on ThinkWiki

Watt Resistance
36 7300
45 120
65 280
90 550
135 1000
170 1900
230 4600

Barrel

The 20V one, used before slim tip

Table found on ThinkWiki

Watt Resistance
65 10000
90 Not connected
135 Shorted
170 1500
hardware/lenovo.txt · Last modified: 2020/03/01 07:21 by mathias