Laptop Batteries

If your laptop battery can not backup as it used to and you can only get thirty minutes or at most forty five of work done before you need to start  searching for an AC outlet? Sounds like it's time for a replacement battery.
It is true that laptop batteries are expensive but without a good backup your pc hard drive is at a risk and you could eventually lost your data in the occurrence of a possible crash.
Price vary from one model to another but new ones sell for a few thousands of naira if you know what I mean.  There are some as high as ten to fifteen thousand naira.
When you consider that brand-new laptops now sell from as low as forty five  thousand naira, it can be a hard pill to swallow.
If your laptop is your primary PC, and you are sure of constant power from your AC outlet (can't vouch for that anyway) you may be wasting battery cycles by leaving it plugged in all the time.
Try removing the battery until you actually need to go somewhere with your laptop. As long as it is plugged into an AC outlet, it doesn’t actually need the battery. While it is plugged in, just hibernate or shut down and insert the battery then you are good to go.
When using your laptop and there is power outage where you have your backup as the only power source, you can set your computer to save power through its setting.
And you can still apply some other power saving tweaks through the settings and closing unused applications.
If all these fails, get a replacement.