HP Elitebook Battery

[U9897]

Hey Everyone,

I hope you all are doing good. I have a HP 840 G5. HP Battery Check shows a Full Charge capacity of 42WHr but my laptop only charges to 34 Whr. What could be the reason?  Any help would be appreciated. 

[ub6424]

Hello @U9897 

Sorry to hear that you are having problems ... I would like to help you.

(1) Read

BU-802: What Causes Capacity Loss?

(2) See on the right: Tables of Contents

Section <Basics You Should Know>

Quote: "

In most cases, the decrease is linear and capacity fade is mostly a function of cycle count and age. A deep discharge stresses the battery more than a partial discharge. It is therefore better not to discharge the battery fully but charge it more often. A periodic full discharge is only recommended on nickel-based batteries to control “memory ” and on smart batteries as part of calibration. Lithium- and nickel-based batteries deliver between 300 and 500 full discharge/charge cycles before the capacity drops below 80 percent.

"

Good luck