"YMMV but I replaced the battery on my Samsung Note with two off eBay and in both cases the life was similar to the original that already had 2 years worth of w

"YMMV but I replaced the battery on my Samsung Note with two off eBay and in both cases the life was similar to the original that already had 2 years worth of wear." I see you forgot to clear the old battery information from your phone before installing the new one - the phone is still assuming you've got the old battery in and measuring as such. batterystats.bin (Android) needs to be cleared before installing a new battery, so that it is forced to get fresh information on the installed battery.