Quote:
Originally Posted by gr8npwrfl
Also some batteries depending on the ones used in particular rechargable items have a problem with "glazing". That means if you only drain 20% of the charge and continually recharge the system from 80% back to 100% the battery, after a period of time they will not supply power down past 80%.
This is not just on the Jetbook but all battery operated devices
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Never had this problem with my LiPo batteries I use for my RC Planes. Don't think this is true for any of the Lithium batteries, but definitely is true for NiCD/NiMH.
My laptop I use for work, gets used every day plugged in at work, and discharged usually every night at home, and lost about 25% total power in about 18 months usage. I frequently use 10-20% charge (sometimes more, sometimes less) before plugging it in, and haven't had that problem with memory. Li-Ion Polymer batteries (what the Jetbook comes with) typically* have a cycle life of around 1000 cycles, and 2-3 years time wise. Where you'll usually have problems is when you let them discharge too low, or when the charging circuit in the device overcharges the battery (very dangerous, LiPo batteries can vent flammable gas).
* Modern LiPo batteries, properly cared for, not over discharged, or over charged are usually rated around 1000 cycles, older-tech batteries were rated closer to 500 cycles.
Where I usually have lower cycles on my batteries, are when I push them hard, the 20C+ discharge rates take their toll, and you get much lower usage out of them.