Battery drains really fast
344864
i charged this thing for about a day, next day, used it for about 5 minutes and the battery was all drained.
3333076
While the installation was easy - the new battery is discharging very quickly. I have taken several actions to fix but have not been able to get the battery to maintain its charge.
4710172
I bought this thinking it would be better than the battery I already have since it was draining faster. This one lost battery even faster than the one I already have.
2919254
I did not expect this to go from a full battery to 2%within a1 hour show.  That's really crappy.  The battery on this thing sucks.  Much older version of note tab did way much better than this.
1113010
Batteries drain very fast, when charger is charging original sony battery, it is very hot, I have to return all stuff, buy additional original sony battery at bestbuy location store even it is triple price.
3564240
Great product, but I have found that I really don't use this much. The battery drain is not worth it in the few times I might use it.
320287
I bought this because I bought a MacBook pro which did not have much storage.  I thought it would be a great buy, but unless you are constantly plugged in to a power source, this will drain you battery faster than anything else. Not worth it.  Invest on a Synology NAS, instead.
4354173
The battery on this thing sucks ass.  It's a one time use item it seems.  I was downloaded and played a word game for a total of about 1 and a half hours and it went from 100% to 7%.  I can't even really bring it anywhere to read or play with because it just dies by the time I get home.  I mean it's just enough I guess, but I was very unhappy with battery life.
530876
It drains as fast as my old original battery, I'll see if it'll still be the same after charging it for the first time. Otherwise,  I need to replace or try some brand.
2432342
I used to get 4 hours out of my  phone, now my battery has been going for almost 2 days.  I have had this for one full week.
4195805
Nice radio i like it a lot but the battery drains very quickly, I'm thinking of getting a stronger battery and  keep and extra one.
4768086
I bought this phone on Jan 7, 2016. This was my first phone and I was really excited because it looked so cool. I was happy with my purchase for the first few weeks but then I started noticing the battery draining really quickly. This was a new phone and I was already disabling apps that I can't uninstall and don't need and using power saving mode, airplane mode, etc. I charge it to 100% and after 10 min use its already 90%. Really disappointed with the battery life.
226818
I bought this laptop in September, and by January the battery was shot. I could only use it while it was plugged in and if it turned off I had to charge it for 2+ hours before being able to log back in. It has an internal battery so you can't replace the battery
3108758
I was excited to get this product since my phone was barely lasting a day. Got the case and charged it and was ready to use it during a family trip. It worked the first few days and continues to charge my phone however my battery is doing weird things. First, my phone died with 40% battery while I was checking emails the other day. Then the next day it died at 50% and I would give it a quick charge with this case but as soon as I turned the case off, the phone would die around 50%. Today, my battery percentage has been at 100% all day (there's no way this is possible) and just died. Plugged it in and it says it's at 100%. It has died twice, once while writing this review.

After going through some reviews, seems like some other people are having the same issues. Looks like I need to replace my battery now. Either that or buy a new phone, which I don't want to do right now
3191510
The battery life is terrible especially while watching a video, the battery constantly drains even while it's charging.
1779437
The battery drains quickly, and as time went on the max amount of time I have gotten from the battery is 45 mins.
3174010
BATTERY DOES NOT HOLD A CHARGE, DEPLEATS TO QUICKLY.