Upgrading the battery

[vikaman]

Hi all,

My battery for my HP laptop recently died and so I bought a new one. Since I wanted one with more capacity, I got a battery which I believe is 8800mah rather than 4400mah.

Thing is that I am not too sure if the laptop, and the battery/energy management software recognizes this change in capacity. Is there something I should do in the bios etc?

Or is this not required?

 

[anikhtos]

Hi all,

My battery for my HP laptop recently died and so I bought a new one. Since I wanted one with more capacity, I got a battery which I believe is 8800mah rather than 4400mah.

Thing is that I am not too sure if the laptop, and the battery/energy management software recognizes this change in capacity. Is there something I should do in the bios etc?

Or is this not required?

first take out the battery and see the characteristics
be sure you have a 8800 battery and not a 4400
when you are sure for which battery you have bought we can see it from there

 

[vikaman]

Thanks for the reply.

Good thing you asked me to check. The battery itself says 10400mAh @ 10.8V

Does this change too much?

 

[anikhtos]

Thanks for the reply.

Good thing you asked me to check. The battery itself says 10400mAh @ 10.8V

Does this change too much?

10.8v???
what was the old battery voltage may i ask???

 

[anikhtos]

how we figure out the remaining capacity of a battery
we measure its voltage. the producer has made maps
so we know that with that voltage the battery has
http://www.batteryspace.com/prod-specs/Li-Ion 14500.pdf
there you can see a graph of the discahrging of the battery
you will also see that there is a max allowed voltage reached at charging
in the example above a 3.7v battery is fully charged when it reaches 4.2v
(you need a 4.2v charger to charge this battery)
and uncharged when it reaches 2.75v
if you push the battery above 4.2 then the battery will be destroyed
cuasing damage in the suroundign
if you drain the battery bellow 2.75v then you will kill the battery
and no longer be able to store current.
your laptop has a specific voltage for charging the battery.
placing a difernet voltage battery could either not be able to charge it
(voltage of charger close to the battery) or even worse destroy the battery (voltage of charger greater by a lot)
if you are okey with the voltage
then give the laptop the time to fully charge the battery
for safety reason some smart chargers monitor the temp of the battery if too high they stop charging
so if your new battery is a corect match in voltage with the old
give it time to charge and then when it will build the voltage it will be reported fully charged

 

[vikaman]

My previous HP laptop battery had the part number: 484171-001

Found here: http://partsurfer.hp.com/Search.aspx?SearchText=CNF9293DRT

According to a google search it was 4400mAh @ 10.8V: http://www.amazon.com/HP-484171-001-.../dp/B004WOSC3W

I don't quiet understand what I need to do. From what I read of your post, does the computer figure this increase in capacity out on its own?

Thanks for your help!

 

[anikhtos]

My previous HP laptop battery had the part number: 484171-001

Found here: http://partsurfer.hp.com/Search.aspx?SearchText=CNF9293DRT

According to a google search it was 4400mAh @ 10.8V: http://www.amazon.com/HP-484171-001-.../dp/B004WOSC3W

I don't quiet understand what I need to do. From what I read of your post, does the computer figure this increase in capacity out on its own?

Thanks for your help!

so enjoy your new battery

 

[chubbyfatazn]

Yeah, enjoy... the power management software should be able to recognize it. If it's made for the same laptop as your original 4400mah battery, then you're coolbeans. It's not like the larger capacity battery is going to send reverse voltage through and fry your laptop (that doesn't even make sense).

 

[anikhtos]

Yeah, enjoy... the power management software should be able to recognize it. If it's made for the same laptop as your original 4400mah battery, then you're coolbeans. It's not like the larger capacity battery is going to send reverse voltage through and fry your laptop (that doesn't even make sense).

well even in a rare case the program fails to recognise the bigger capacity
i do not think that will be really a problem using the new batterie