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[T470] Battery Reccomendations Needed

T430 and later, plus T530 and later series specific matters only
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[T470] Battery Reccomendations Needed

#1 Post by tik34Load » Mon Sep 07, 2020 7:29 pm

In my newly purchased laptop I have two LGC batteries. It appears battery 1 has a full charge capacity of 10000 mWh with a 240 cycle count and battery 2 has a full charge capacity of 2600 mWh with a cycle count of 196. It came with a knock off charger.

These cycle counts seem really low for these batteries to exhibit such a weak full charge capacity. I don't know enough, but I'm curious if the charger messed with the lifespan of them somehow. If I can't fix the batteries, is there any recommendations people have for good replacement batteries?

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Re: [T470] Battery Reccomendations Needed

#2 Post by dr_st » Tue Sep 08, 2020 3:30 am

It is rather low indeed. The age of the batteries, how much time they spent at different charge levels (and different) temperatures sometimes affects battery longevity more than the raw number of cycles. Luck of the draw is also involved.

My Thinkpad 25 batteries (also LGC) have deteriorated to about 60% of the original charge within ~2 years of use. It's not as bad as your batteries, but it does say something about their overall life expectancy not being great.

Edit: What do you know? Mere days after this discussion, one of my "61" batteries (external 3-cell) failed. Full charge capacity dropped to <1Wh (about 850Wh). I tried to reset the battery. After "charging" for over 3 hours it reached some ridiculous 1.3Wh capacity, at which point the Vantage tool said that reset failed due to an unknown error. Seems like the battery is trash.
Last edited by dr_st on Sun Sep 13, 2020 2:34 am, edited 1 time in total.
Thinkpad 25 (20K7), T490 (20N3), Yoga 14 (20FY), T430s (IPS FHD + Classic Keyboard), X220 4291-4BG
X61 7673-V2V, T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad, A21m 2628-GXU

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