X40 owners, what battery life are you getting?

[SailingAway]

Curious to see what you're getting for battery life with either the 4 or 8 cell. Please include your CPU type and list any power saving measures you've taken. Thanks.

[ganon11000]

Curious to see what you're getting for battery life with either the 4 or 8 cell. Please include your CPU type and list any power saving measures you've taken. Thanks.

~45 mins, original battery (2nd hand probably mistreated) windows 8 Pro with Media Centre 32Bit and undervolted by ~200mV (700mV on all frequency's)

*this is a x41 but almost the same as a x40

[ds190]

X40, 1.40ghz, 1.24 RAM, WinXP Pro, WIFI on, original 30 GB harddrive, BatteryCare software running, power profile Always On.

The standard 1.9 AH battery last 1.5 hours. The external or fat 4.3 or 4.4 AH battery lasts 3.5-4 hours.

[ganon11000]

X40, 1.40ghz, 1.24 RAM, WinXP Pro, WIFI on, original 30 GB harddrive, BatteryCare software running, power profile Always On.

The standard 1.9 AH battery last 1.5 hours. The external or fat 4.3 or 4.4 AH battery lasts 3.5-4 hours.

is that with a 3rd party battery?

[ds190]

The 14.4v 4.3AH is the official IBM battery PN92P1002. The 14.4v 4.4AH battery is a clone from RoHS, came from fleabay, and hangs out the back almost twice the size of the smaller IBM. It's heavier, looks like it should be a 12 cell, but it's not.

They both seem to have the same run time.

[ganon11000]

The 14.4v 4.3AH is the official IBM battery PN92P1002. The 14.4v 4.4AH battery is a clone from RoHS, came from fleabay, and hangs out the back almost twice the size of the smaller IBM. It's heavier, looks like it should be a 12 cell, but it's not.

They both seem to have the same run time.

ok, BTW RoHS are guidelines not a company :p

[ds190]

D'oh! That means that the company's name (and presumably address etc) is printed in teeny tiny Chinese characters:-)

[ganon11000]

D'oh! That means that the company's name (and presumably address etc) is printed in teeny tiny Chinese characters:-)

haha :p I just bought a clone 5200mah I'll tell you if its any good!

[ganon11000]

The 5.2A one is getting between 3.5-4H on my X41 (it's maxed out with windows 8!)