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Helix PSU question 20v or 12v?

ThinkPad/Ideapad Slate Tablet, Tablet 2, Miix etc.
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blink
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Helix PSU question 20v or 12v?

#1 Post by blink » Wed Mar 17, 2021 8:24 pm

Just bought a helix 11.6 1.2GHz Core M-5Y71 from a popular auction site as i spilt liquid over my old trusty x201 :( & thought i would try a convertible.
Does anybody know if standard thinkpad 20v PSU is safe to use as some reports say it is 12v?

I have quite a few 20v knocking around some older barrel tips & rectangle adapters but no 12v ones.
Many Thanks
Many Thanks for any advice, shared knowledge & wisdom is a wonderful thing.
1st Thinkpad T42 (Old 570,600e, A21,X31,X40,X41) Current X60s, T60, Z61T,X200

axur-delmeria
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Re: Helix PSU question 20v or 12v?

#2 Post by axur-delmeria » Wed Mar 17, 2021 10:03 pm

Have you checked the label on the Helix's charger? Usually the output voltage is written there.
Daily driver: X220 4291-C91 i7-2620M

Backup: X601 Core 2 Duo T8100
Toy: X60F Core Solo U1300
On loan: X220 4291-P79 i5-2520M
In pieces: two retired but working X61Ts
RIP: 760XD 9546-U9E; X61 7676-A24; and a BOE-Hydis HV121P01-100 in failed SXGA+ mod
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Re: Helix PSU question 20v or 12v?

#3 Post by RealBlackStuff » Thu Mar 18, 2021 2:02 am

One of the rare anomalies, that Helix uses a 12V/3A/36W rectangle charger
https://support.lenovo.com/ie/en/access ... vice-parts
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blink
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Re: Helix PSU question 20v or 12v?

#4 Post by blink » Thu Mar 18, 2021 12:06 pm

Thanks for the replies its not arriving until tomorrow, Strange & a shame it doesnt use 20v as it would be far easier.
Some people say they are compatible, Some sellers even list them.
yes im sure they work but may damage the Helix?
I know most devices only take the amps that they need but i dont think they are so smart with voltage
Many Thanks for any advice, shared knowledge & wisdom is a wonderful thing.
1st Thinkpad T42 (Old 570,600e, A21,X31,X40,X41) Current X60s, T60, Z61T,X200

axur-delmeria
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Posts: 2867
Joined: Mon May 28, 2012 5:49 am
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Re: Helix PSU question 20v or 12v?

#5 Post by axur-delmeria » Thu Mar 18, 2021 7:36 pm

blink wrote:
Thu Mar 18, 2021 12:06 pm
I know most devices only take the amps that they need but i dont think they are so smart with voltage
Indeed. Devices to be specifically designed to accept a wide range of input voltages. Otherwise it's usually within +1V/-0.5V or +/-5% (whichever is smaller) of the nominal voltage.
Daily driver: X220 4291-C91 i7-2620M

Backup: X601 Core 2 Duo T8100
Toy: X60F Core Solo U1300
On loan: X220 4291-P79 i5-2520M
In pieces: two retired but working X61Ts
RIP: 760XD 9546-U9E; X61 7676-A24; and a BOE-Hydis HV121P01-100 in failed SXGA+ mod
:cry:

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