Because of convenience, I had to move my laptop to another room away from room where I always ran laptop on UPS without using battery. UPS is specifically there for protection from surges and power outages. Since so far I always run laptop on battery, I question the proper usage to prolong battery life.
Currently I run laptop on battery with power supply so battery is constantly being charged until it is full 100% and when it is, I disconnect power supply and continue working until battery meter shows 10% remaining. That's when I plug in power supply and let it charge until 100% once again while I work. But it takes a lot of time to fully charge laptop while working since my power supply is 60W which should be the reason of such slow charge and I think the kind of charger that I use is express charger.
The thought of charging laptop until full, all while doing my work makes me think that if it takes way more time to charge, it might keep battery running warm for the period of charging time which brings me to question about whether I should keep running laptop as I've described above or it would be better to leave power supply constantly connected to laptop to keep battery between 99%-100%? On one hand it won't keep battery warm but it will try to frequently supply charge to battery once it gets 99% to replenish charge to 100% (which might reduce battery life?). On the other hand if I'll keep working solely on battery and recharge it when below 10%, the battery will get warm but only when charged.
Can anybody suggest the correct way of running laptop on battery to ensure better battery life? Also, since keeping my laptop in good condition is important to me, I no longer leave it plugged in mains without battery and since UPS served me as backup in power outages and surge protector, I now rely on my battery to substitute UPS, at least in means of a backup in power outages.
Dell Latitude E6420
Windows 7 64-bit
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