External Notebook Battery

[Anonymous user]

I'm trying to decide on either buying an extended battery for my UX280P sony or buying the external battery, such as the UPB50. The sony battery is rated at 5200mAh at 7.4V. How will that compare to the rating of the UPB50 which is rated at 3000 mAh but at a higher voltage? Not sure if I quite understand battery ratings. I know what a milliamp-hour is, but how does it compare when voltage ratings are different?

Thanks!!

[Anonymous user · Accepted solution]

I'm trying to decide on either buying an extended battery for my UX280P sony or buying the external battery, such as the UPB50. The sony battery is rated at 5200mAh at 7.4V. How will that compare to the rating of the UPB50 which is rated at 3000 mAh but at a higher voltage? Not sure if I quite understand battery ratings. I know what a milliamp-hour is, but how does it compare when voltage ratings are different?

Thanks!!