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Lot's of FUD here. I'll try to englightnen with some facts.
Since all batteries today are LiIon, so I'm writing only about them.
1. LiIon batteries should be stored at around 40-50% charge. Notice when you get a new device which has LiIon, it is charged in factory to this amount.
2. LiIon has no memory effect so you don't have to discharge it ever.
3. LiIon has limited amount of charge cycles, which reduces the amount of charge it can hold. I don't remember the value but it's in the low 1000's.
4. Keeping the battery unused at 100% or 0% charge will ruin it over time. Eg. keeping it in the laptop which is always plugged in or keeping it out of computer over 6 months.
So, to maximize your battery life for your office computer is by keeping it 40-50% charged, out of the laptop. Personally, I carry my laptop to home only on weekends, so the battery stays out of machine during the week. 95% of cases I know beforehand if I need the battery so I charge it accordingly. After the gig where I needed the battery I let it charge or discharge while using it in the office to the 40-50% point.
I've used laptops exclusively on my work for the past 5 years and I've never lost more than 15 minutes of usable time on any battery, one of them being in use more than 2 years.
I also ruined my first one when I kept it in office over 6 months plugged in straight 24/7. When I needed it on emergency run to routers, the battery failed after 30 mins. The same happened to all other laptop batteries in the company which were used in this way. Since the batteries are damn expensive, we just had a little talk with all employees and the need for replacement batteries was reduced around 85%.
just my 2 yen.
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br,
Sty
I route, therefore you exist
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