so are clevo batterys different to normal batterys?

...or was i just missinformed on how to look after laptop batterys?

this is from the clevo guide on here "

1.) Battery: to maintain the longevity of any rechargeable battery
- you must NEVER overcharge it [especially for long durations of time] by keeping it plugged into AC
- when it reaches 100% you should unplug it and let it discharge to at least under 50%, then plug it back to power

now i used to have a dell inspirion and always thaught the way to optimise the life of the battery was to ALWAYS have the AC plugged in and only ever use the battery when you had to because laptop batterys only have a lifespan of 500 charge cycles

so wich is true lol

 

As far as I know, all Li-On batteries only have a certain amount charge cycles. So unless they don't use Li-On batteries, then you're right. Although if you don't use it for long periods of time, it can slightly shorten the battery's life-span.

 

I'm not sure about Clevo BIOS, coz I haven't got it yet, but quiet ofter (at least on my previous lappy) there was such option as "battery calibration". Using the fans w/o start-up the system battery discharges completely. I did this exercise once a month and even after 3 years my battery was 50% alive.

 

Fully discharging Li-On batteries is one of the quickest ways to shorten its lifespan. The only time anyone should do it is when timing how long your battery lasts. Modern Li-ON batteries have no memory effect whatsoever.

 

so that information is incorrect then and i should carry on leaving it plugged in to where ever i can?

 

not really all Li-ON batteries got embedding controller, which will not allow to discharge the battery up to dangerous level and will send the signal "battery gone" to mobo in advance.

nothing to worry, bro, it's safe enough at least my battery proof this.

 

That's true, but when the battery is being drained that low, it creates a lot of heat, which is what damages it.
Anyways, back on topic. There's no need for you to worry about unplugging it whenever the battery gets full.

 

I used to use cooler, so it's the issue

 

All of my D900K batteries are made by SMART Battery for Clevo.
They are ordinary cells on the inside

K-TRON

 

By the way, the "number of charge cycles" is just a measure of lifespan - that is, charging from 90% to 100% doesn't use up one charge cycle, but doing that 10 times will. Partial to mostly full charging is the best as opposed to empty to full (or letting it go empty) - mostly due to heat generated by the charging process, which is a lot higher when very low and also high when nearly full. The bigger issue is keeping the battery cool, not what % you're charging at - an overheating battery kept at medium full levels has a much lower lifespan than a highly cooled battery plugged in all the time.

Some documents I ran across a while back: http://www.batteryuniversity.com/print-parttwo-34.htm (heat <-> lifespan graph is most handy from there) And frankly, that article's old an I bet batteries have come a long way since it was written.

The taking the battery out while on a/c suggestions are not really great - just run a battery room/rmclock/etc to prevent charging past 90%, for example, instead, or just not worry at all. A notebook's sole advantage on a/c is having a backup when a/c goes out.

Pretty much what 1337 said; lots of freaking out about notebook batteries

 

So leaving the battery in my M860TU will be fine?!?!?

 

That's what I'm doing, and cooling by system with a cooler. I'd rather have slightly more wear on my battery than losing data/corrupting my hard drive/crashing when I have power outages.

You can use RMClock or a similar program that controls battery charging to let it only charge to 80 or 90% if you're worried.