Battery Capacity Chart - October 2011

[dr_st]

Last month I did a roundup of all the Thinkpad batteries in my possession. The roundup consisted of doing a couple of calibration cycles on the battery. The table below summarizes for each battery the brand, the design capacity, age in months, number of cycles, current full-charge capacity and percentage of current capacity compared to the design.

As you can see, the evidence upholds the common theory of Panasonic vs Sanyo longevity. The lone LGC battery is still very new and it's unclear how it will behave over time.

Code: Select all

Battery	Brand		Design	Age	Cycles	Capacity	%
T60-9c-1	Panasonic	84.24	62m	229		70.29	83.44%
T60-9c-2	Panasonic	84.24	53m	304		70.07	83.18%
T60-6c-1	Panasonic	56.16	63m	133		48.59	86.52%
T60-6c-2	Sanyo		 56.16	39m	199		39.24	69.87%
T42-6c-1	Sanyo		 47.52	79m	203		17.35	36.51%
T42-9c-1	Sanyo		 77.76	18m	203		68.94	88.66%
X61-4c-1	Sanyo		 37.44	43m	129		22.87	61.08%
T410-9c-1  Panasonic   93.96	13m	32		 95.59	101.73%
T410-6c-1  LGC		   56.16	15m	60		 56.79	101.12%
A31p-6c-1  Sanyo		 43.20	110m	4		 35.46	82.08%
X32-6c-1	Panasonic	51.83	60m	250		45.08	86.98%
X32-6c-2	Panasonic	51.83	74m	150		45.16	87.13%

[mariol90]

the LGC battery in my girlfriend's SL410 appears to be holding up well. when it was around 150-170 cycles it started to get some wear (under 1% though). i'll have to check the wear again, but it was over 210 cycles a few weeks ago.

good to see you're still keeping up with this!

edit: here's what it looks like now
Brand LGC
Design 47.52 Wh
Manufacture date 2010-03-11
First use 2010-08
Cycle count 292
Capacity 39.31 Wh


still doing well (feb 7 2012):
Full charge capacity: 42.59 Wh (10.4% wear)
Cycle count: 377