How is your Thinkpad Sanyo battery holding up?

ultrabay batts are li-po no?

 

X220 Sanyo battery. Original capacity: 94.00Wh. Capacity now: 93.90Wh. 99 cycles, manufactured 4/25/11.

I'm happy...

 

Still 63/66 for the X200 Tablet but I haven't calibrated it yet...

 

assuming you're talking about your T500, find one on ebay that is 42T4620 or 92P1134. they should all be panasonic. 92P1133 may work also but the one i have is from a Z60m (the battery is 4-5 years old).

the 41++ batteries i have all say panasonic on them too, above the date sticker, so if you can see a pic that may be helpful.


here's another dead sanyo, 7-cell from a Z60t:

Remaining capacity: 0.00 Wh
Full charge capacity: 65.11 Wh
Cycle count: 15
Manufacturer name: SANYO
Design capacity: 65.52 Wh
ASM 92P1126, FRU 42T4512

there is currently one thinkpad sanyo battery alive that i have, and it has over 300 cycles and 55% wear.

 

After 171 cycles, my battery capacity on my x200 6-cell was less than 80% and would run out of juice fairly quickly. I decided to do a battery reset to see if recalibrating it would fix things. Turns out my battery capacity jumped from about 44 Wh to 49.78 Wh, so its capacity is actually closer to 90% of the original 56.16 Wh after 174 cycles. My mind is now at ease.

Merry Christmas everyone!

 

Back with my W520's battery (Sanyo) after the first calibration (it was at 86.98 Wh before the calibration with 11 cycles):

Manufacture date: April 2, 2011
First use date: May 11, 2011 (fairly sure of this date, +/- 2 days at most)
Remaining capacity: 104.46 Wh
Full charge capacity: 104.46 Wh
Cycle count: 12
Design Capacity: 93.24 Wh

Did some magic happen...? I'm pretty sure that the original capacity on the battery was only 96 Wh-ish. Also, the voltage is at like 12.9 V (and always has been when fully charged), is this normal?

Edit:
By the way, the calibration took 19 hours to do in total from a battery that was like 90% charged. Painstakingly long.

 

I am curious to see how the newer sanyo batteries are holding up. also are there still other brands being used?

 

The new Sanyo battery seems to be doing pretty well, since Panasonic bought out Sanyo.

 

Recalibrated: 103.55Wh out of 93.24Wh.

That whole glitch where it would jump around was fixed in the latest BIOS, which was nice.

 

Another Data Point

Thinkpad X220, 9 cell 29++ Battery. 71.80 Remaining Capacity out of design of 93.24. 23.0% Battery Wear. Manufactured 07-2011. Cycle count 322. I use this on battery daily for grad school It's plugged into AC nightly, daytime battery is in use. And Yes it's a Sanyo. Reading the last few pages this falls about expectations but what worries me is that reports of the battery just dying alltogether vs dwindling down into less and less capacity.

Edit: Have never recalibrated.

 

I have the Sanyo six-cell battery. My X220i is one and three quarter years old. The remaining battery capacity is 53w out of a design capacity of 57w, which means it's lost 7% of its battery life in just short of two years. That's not too shabby. I kind of want to pick up the four-cell when this one goes bad, but it's not cooperating.

 

Isn't the six cell designed to be 63whr?

Also, how many cycles and when is the last time you calibrated?

 

Yes, the design capacity is 62Wh. My X220 6c had 64Wh when it was new. If your new 6c had less than 60Wh they ripped you off.

Now after nearly 2 years it has been through 337 cycles and has 48Wh left. It used to be down to 45Wh for some time.

For comparison, our T60 9c is from Panasonic, has over 600 cycles and about 66Wh from 84Wh left. Panasonic makes the best cells.

My X301 6c (Sanyo) has nearly 250 cycles and can still hold 38Wh from 43Wh.

I also have a X220 9c from LGC, I have hardly used it so I am yet to see how well it holds up.

 

How does one check the charge cycles in Windows 8, since the Lenovo Power Manager is apparently EOL'd.

I'm getting a 9-cell for my X230 this weekend (used lightly) and want to know how many charge cycles are on it.

 

Try running "powercfg -energy" (without the quotes) from command prompt. This will generate a report that might tell you the battery's cycles.

 

If you want to continue using Power Manager in W8, you can continue to do so by installing in compatibility mode (after installing the W8 version of the Power Management Driver). Everything still works perfectly fine.

 

Interesting, did not know that. It might be time to update to Win8 then!