Laptop battery only gives 45 minutes usage.

L_J_Silver

My Dell Inspiron 1545 battery is 4 cell, 2200 capacity and 14.8 voltage. It is only giving around 45 minutes usage and wondered if this could be increased with a more powerful battery ?


I have noticed Amazon and Ebay have replacement batteries compatible with the 1545. They are 6 cell, 4400 capacity but a lower voltage of 11.1. I'm not really up on these things but does the voltage for the replacement battery have to be the same as the existing one ?

Quiet_Spark

Of course the working voltage has to be the same, if Dell could have got away with 11.1v when your laptop was in the R&D stage then they would have done it.

agrinnall

I very much doubt if the battery currently fitted would only have had a life of 45 minutes when it was new, even the worst batteries I've seen would have provided at least double that time. I suspect the battery is old and knackered (happens to us all) and a straightforward replacement will revitalise your computer.

forgotmyname

Some of the budget laptops have terrible batteries. I was given one to cleanup and thought the battery was kaput. 20 minutes of uninstalling files and running scans and it was almost dead.

I checked the specs online and it only lasted about an hour when new.

Sharon87

My laptop battery only held about 20 minutes for the past 5 months or so. I got a replacement. Never buy cheap fake ones as they'll have less power cells in them and the rest filled with some other material and are a fire risk.

I used laptopsandspares.com they are UK based, provide genuine batteries and for less than the RRP (well for mine it was) sorry for sounding like an advert, but I just rate them highly after my purchase. I get over 2 hours battery life now.

Just make sure you get the battery suited for your laptop

Sharon87

Just had a look:
http://www.laptopsandspares.com/batpsq3875b-5l-dell-inspiron-1545-laptop-battery

It says the 11.1v one replaces the 14.8 one.

L_J_Silver

Thank you for your replies. The current battery is around 3 years
old and initially I was getting up to one and a half hours. I assume it is now reaching the end of its life and will be replacing it.


Sharon87 - thanks very much for the information you provided, I will probably purchase a new battery from them.

Wammer

Thanks Sharon. Unfortunately they don't have a battery for my old laptop and can't order one in.

The original battery for my Fujitsu laptop is 11.1v, 4400mAh, 6 cell. Most of the ones on Amazon are 4400mHa, but I have found one that is 5200mHa, 11.1v, 6 cell. Would this be a suitable replacement?

Any other places I could try?

GRM

Worth downloading the free version of BatteryBar to check how 'worn' your current battery is. You can see that mine was originally a 66600mWh but is now effectively a 59385 due to 'wear':

Wammer

Thanks for that. I ruined mine by leaving it plugged into the mains every time I used it and now it only lasts about 20 mins.

Sharon87

Wammer wrote: »

Thanks Sharon. Unfortunately they don't have a battery for my old laptop and can't order one in.

The original battery for my Fujitsu laptop is 11.1v, 4400mAh, 6 cell. Most of the ones on Amazon are 4400mHa, but I have found one that is 5200mHa, 11.1v, 6 cell. Would this be a suitable replacement?

Any other places I could try?

That sounds fine, the mHa number just means how much power it will hold so you'll get even more power than your old battery!

I run mine down too by keeping it plugged in all the time. I wont be making that mistake again.