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Which third party battery can i use for T440s

T430-T490, T530-T590 Series
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Shotokanda
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Joined: Tue Sep 18, 2018 9:23 am
Location: Munich, Germany

Which third party battery can i use for T440s

#1 Post by Shotokanda » Tue Sep 18, 2018 9:26 am

Hi,
I got a T440s and I wanna buy some extra batteries. I had a X230 before and it didnt charge some 3rd party batteries.
Which brands of batteries are "save to buy" for my model?

Greetings
Shotokanda

RealBlackStuff
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Re: Which third party battery can i use for T440s

#2 Post by RealBlackStuff » Tue Sep 18, 2018 10:00 am

Welcome to the Forum.

The X230 can charge any non-official battery after you mod the EC, info here: viewtopic.php?f=69&t=120776

T440s can use the same batteries as the X240 (external 3-cell 24W 68 and 6-cell 72W 68+).
It is recommended to use genuine Lenovo batteries, unless you find knock-offs from a reliable(!?) supplier.
Lovely day for a Guinness! (The Real Black Stuff)
Lenovo: X240, X250, T440p, T480, M900 Tiny.

PS: the old Boardroom website is still available on the Wayback Machine
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Thinkpad4by3
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Re: Which third party battery can i use for T440s

#3 Post by Thinkpad4by3 » Tue Sep 18, 2018 11:29 am

X240 and T440 also haeve interchangeable internal batteries FWIW.
Thinkpad4by3's Law of the Universe.

The efficiency of two screens equally sized with equal numbers if pixels are equal. The time spent by a 4:3 user complaining about 16:9 is proportional to the inefficiency working with a 16:9 display, therefore the amount of useful work extracted is equal.

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