View Single Post
Old 10-23-2010, 12:51 AM   #10
SameerH
Product Manager
SameerH ought to be getting tired of karma fortunes by now.SameerH ought to be getting tired of karma fortunes by now.SameerH ought to be getting tired of karma fortunes by now.SameerH ought to be getting tired of karma fortunes by now.SameerH ought to be getting tired of karma fortunes by now.SameerH ought to be getting tired of karma fortunes by now.SameerH ought to be getting tired of karma fortunes by now.SameerH ought to be getting tired of karma fortunes by now.SameerH ought to be getting tired of karma fortunes by now.SameerH ought to be getting tired of karma fortunes by now.SameerH ought to be getting tired of karma fortunes by now.
 
SameerH's Avatar
 
Posts: 486
Karma: 331087
Join Date: May 2010
Location: Toronto
Device: Kobo Aura H2O
I'm not an electrical engineer, but let's see if I can help shed some light.

We use a lithium-ion polymer battery, which boasts a better degradation rate than Lithium-ion.

The numbers we received on the battery:

Testing shows 80% retentive capacity remaining after 300 charge cycles (charging it from 2.75V to 4.2V). That's about 5 years @ 1 cycle per week.

Slap some conservatism on there (say 60%) and you're left with 3 years to get down to 80% retentive capacity.
SameerH is offline   Reply With Quote