Hi,
My original battery is 10.8v and 4.4ah, which became unable to be recharged after 5 years' extensive use. Today I bought a new one, same voltage (10.8v) but slightly different current (4.6ah).
Now I am charging it. The AC adapter feels very hot! (The new battery once stopped charging after reaching 18% of its full capacity, but after discharging it a little bit, it resumed the charging process, presently having reached 76%.)
My concern:
Is it safe to use the new battery, given that there is a 0.2ah difference in current?
Thanks!
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Thinkpad T42 battery replacement (different current)
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Re: Thinkpad T42 battery replacement (different current)
The 4.6Ah only means that it has a larger capacity than your previous battery.
You can even get (9-cell) batteries with 7.2Ah.
All of them are 10.8V.
Check that you only use an original IBM charger (16V/72W/4.5Amp).
You can even get (9-cell) batteries with 7.2Ah.
All of them are 10.8V.
Check that you only use an original IBM charger (16V/72W/4.5Amp).
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.
Lenovo: X240, X250, T440p, T480, M900 Tiny.
PS: the old Boardroom website is still available on the Wayback Machine.
Re: Thinkpad T42 battery replacement (different current)
Thanks for your reply. For "IBM charger" do you mean "IBM AC Adapter"?
Mine is the original IBM AC Adapter with the following specifications:
INPUT: 100-240V ~ 1.9A
OUTPUT: 16V = 4.5A
It does not show 72W anywhere on the body of the adapter.
Mine is the original IBM AC Adapter with the following specifications:
INPUT: 100-240V ~ 1.9A
OUTPUT: 16V = 4.5A
It does not show 72W anywhere on the body of the adapter.
RealBlackStuff wrote:The 4.6Ah only means that it has a larger capacity than your previous battery.
You can even get (9-cell) batteries with 7.2Ah.
All of them are 10.8V.
Check that you only use an original IBM charger (16V/72W/4.5Amp).
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- Admin Emeritus
- Posts: 23809
- Joined: Mon Sep 18, 2006 5:17 am
- Location: Loch Garman, Éire
Re: Thinkpad T42 battery replacement (different current)
That's the correct one.
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.
Lenovo: X240, X250, T440p, T480, M900 Tiny.
PS: the old Boardroom website is still available on the Wayback Machine.
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