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T61 14.1" Charging takes +3hours on 65W. What is the maximum modern charger ?
T61 14.1" Charging takes +3hours on 65W. What is the maximum modern charger ?
Hello
T61 14.1"(2008) Widescreen's charging takes +3hours on 65W.
What is the maximum W genuine Lenovo modern charger ?
Is it the 20V 90W or is there a bigger wattage modern Lenovo charger available ?
For example I bought a new Dell charger 130W to a Dell M65(2006) which had also 65W charger.
T61 14.1"(2008) Widescreen's charging takes +3hours on 65W.
What is the maximum W genuine Lenovo modern charger ?
Is it the 20V 90W or is there a bigger wattage modern Lenovo charger available ?
For example I bought a new Dell charger 130W to a Dell M65(2006) which had also 65W charger.
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Re: T61 14.1" Charging takes +3hours on 65W. What is the maximum modern charger ?
The 'standard' stronger charger for that series is the 20V/90W, which would be the recommended one for your T61.
Next one up: 20V/135W as e.g. used for W520, already 'overkill' for a T61.
Next one up: 20V/170W as e.g. used for W530, huge, has a different DC-plug, is not worth it for your T61.
Next one up: 20V/135W as e.g. used for W520, already 'overkill' for a T61.
Next one up: 20V/170W as e.g. used for W530, huge, has a different DC-plug, is not worth it for your T61.
Lovely day for a Guinness! (The Real Black Stuff)
Re: T61 14.1" Charging takes +3hours on 65W. What is the maximum modern charger ?
Thanks. I think bigger W is more future proof and usable.
Does the T61 laptop limit the usable wattage to max.90W and excess W is kind of "reserve" ?
Is there a list of different charger variations ? For example in ebay there are different variations for 90W newer and older designs.
Does the T61 laptop limit the usable wattage to max.90W and excess W is kind of "reserve" ?
Is there a list of different charger variations ? For example in ebay there are different variations for 90W newer and older designs.
Re: T61 14.1" Charging takes +3hours on 65W. What is the maximum modern charger ?
The 'newer' 90W you may see on ebay is probably the rectangular connector introduced in 2013 Haswell models like my T440p which came with 135W PSU.123434 wrote: ↑Thu May 17, 2018 6:04 amThanks. I think bigger W is more future proof and usable.
Does the T61 laptop limit the usable wattage to max.90W and excess W is kind of "reserve" ?
Is there a list of different charger variations ? For example in ebay there are different variations for 90W newer and older designs.
There are adapter dongles to use the older PSUs with newer Thinkpads but I haven't seen anything to do the reverse.
The pre-T60 adapters were 16V 35W/56W/72W IIRC.
Pretty sure most laptops normally use well under the power provided by their original PSU; any excess basically lets you charge battery faster. Most of the laptops with 135W+ PSUs should run fine on 90W PSUs but won't get much battery charging while powered on. Dell 17" Precisions seem to run fine on Dell's 130W PSU even though they come with 210W or 240W.
Current Thinkpads:
X31, X40, X61T, X61, X201, X220 (i7 IPS), W520 (FHD), T440p (FHD),
T480 (QHD)
Dells: Latitude C840, Precision M70, Precision M4400, M6400 (WUXGA), M6600, M6700, 7730, XPS 13
Daily driver: MS Surface Pro 7 (i7)
X31, X40, X61T, X61, X201, X220 (i7 IPS), W520 (FHD), T440p (FHD),
T480 (QHD)
Dells: Latitude C840, Precision M70, Precision M4400, M6400 (WUXGA), M6600, M6700, 7730, XPS 13
Daily driver: MS Surface Pro 7 (i7)
Re: T61 14.1" Charging takes +3hours on 65W. What is the maximum modern charger ?
Please stick to 20V/90W Lenovo chargers. Charging time-characteristic is defined in laptops/battery firmware so in your case using power adapter with higher wattage output does not make any sense.
P70 / W530 / W700 and 30 more
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Re: T61 14.1" Charging takes +3hours on 65W. What is the maximum modern charger ?
I got some of these adapters:
rectangular-to-barrel : https://www.ebay.com/itm/272500504250
barrel-to-rectangular : https://www.ebay.com/itm/171939163765
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Re: T61 14.1" Charging takes +3hours on 65W. What is the maximum modern charger ?
All these older laptop simply do not have fast charging. It's not an issue of adapter power but rather battery technology and charging circuitry.
If you de-key the 170W adapter it is recognized by the T61 as a 120W adapter.
I came across a Haswell-based Dell laptop recently that on battery was faster than with attached underpowered adapter. Getting the right adapter solved that.
My W520 came with a US 170W supply, it weighted actually less than the European 135W supply that came with the T530.RealBlackStuff wrote: ↑Thu May 17, 2018 5:28 amThe 'standard' stronger charger for that series is the 20V/90W, which would be the recommended one for your T61.
Next one up: 20V/135W as e.g. used for W520, already 'overkill' for a T61.
Next one up: 20V/170W as e.g. used for W530, huge, has a different DC-plug, is not worth it for your T61.
If you de-key the 170W adapter it is recognized by the T61 as a 120W adapter.
My Thinkpad (W520) does nothing with attached 90W adapter if on. It just drains the battery. It will charge on the 90W adapter when in sleep, hibernate of off.jdrou wrote: ↑Thu May 17, 2018 1:31 pmPretty sure most laptops normally use well under the power provided by their original PSU; any excess basically lets you charge battery faster. Most of the laptops with 135W+ PSUs should run fine on 90W PSUs but won't get much battery charging while powered on. Dell 17" Precisions seem to run fine on Dell's 130W PSU even though they come with 210W or 240W.
I came across a Haswell-based Dell laptop recently that on battery was faster than with attached underpowered adapter. Getting the right adapter solved that.
W520
T61
T61
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Re: T61 14.1" Charging takes +3hours on 65W. What is the maximum modern charger ?
I just got a few of these a week ago(just barrel to square) and they are the greatest thing ever! Now I can charge my T520 and myT450 from the same brick.RealBlackStuff wrote: ↑Thu May 17, 2018 2:53 pmI got some of these adapters:
rectangular-to-barrel : https://www.ebay.com/itm/272500504250
barrel-to-rectangular : https://www.ebay.com/itm/171939163765
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.
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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