- I've read that theres a battery issue with the playbook and thought I'd post my finding on this.
I have a 16gb PB. I normally have to charge it every 2/3 days with general to heavy use on it. I always have bridge on and normally wifi aswell but I have started to use the bridge browser alot more when at home with my 9780 connected to my home wifi. My screen brightness is always at the minimum and auto dimming off. So last night I went bed with the PB on 7% woke up this morning at it was on 0% so I thought I'd let it go dead then do a cycle. I havent used the PB all day and 7 hours on it's still on 0%!!! I'm sure once I start to use it it will die but it seems to my that the battery needs calibrating to give the right readings. I've never tested it for continuous use but I'm sure I'd never get the 10 hours stated. Whats the battery life like for others. the PB is great and I use it all the time instead on my ipad just wish I didnt have to charge it as much.
cheers07-12-11 09:09 AMLike 0 -
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- I wouldn't expect 10 hours with continuous use - mine is similar - if I use it heavily, I would have to charge it every day - I generally don't let it go below 50%, and that happens typically every other day with low to medium use.07-12-11 09:38 AMLike 0
- I've read that theres a battery issue with the playbook and thought I'd post my finding on this.
I have a 16gb PB. I normally have to charge it every 2/3 days with general to heavy use on it. I always have bridge on and normally wifi aswell but I have started to use the bridge browser alot more when at home with my 9780 connected to my home wifi. My screen brightness is always at the minimum and auto dimming off. So last night I went bed with the PB on 7% woke up this morning at it was on 0% so I thought I'd let it go dead then do a cycle. I havent used the PB all day and 7 hours on it's still on 0%!!! I'm sure once I start to use it it will die but it seems to my that the battery needs calibrating to give the right readings. I've never tested it for continuous use but I'm sure I'd never get the 10 hours stated. Whats the battery life like for others. the PB is great and I use it all the time instead on my ipad just wish I didnt have to charge it as much.
cheers
When I first got my playbook it seemed I was only getting around six hours and I was so nervous to let it go below 20%. After the update came that allowed the playbook to be able to charge while being powered off, I decided to let the playbook run until it powered off by itself. It got all the way to zero and then ran for another hour and 10 minutes before shutting off. I let it charge up to 100% and ever since when it gets to zero it is out of power and shuts off. Having the meter dialled in makes all the difference.07-12-11 09:45 AMLike 0 - It's not possible to get 10 hours continuous use if you're actually running an app that does anything much (e.g. heavy video), but it is possible to get 10 hours just leaving the screen on and backlight at minimum. I've done some detailed measurements and wrote an article about it.
Do remember (or understand) that some units have poorly calibrated percentage-remaining estimates, but they should still get the expected battery life even if it means sitting at 0% for hours, or (at the other extreme) shutting off when they say they're down to only 13%. I've had reports of both cases, and others in between.
If you want to validate your battery life, drain it fully, to the point where it shuts itself off. Then charge it fully, without using it other than to check status, to the point where the lightning bolt symbol goes away (i.e. not merely until it reads 100%). Then set your backlight to 100% with auto-dimming off, run an app that keeps the unit awake, and let it sit. You should get around 6h from the device before it shuts itself off again.07-12-11 09:53 AMLike 0 -
If you have the tablet in Showcase or Default modes, merely swiping up to minimize the app will do nothing useful for you... it's still running normally, and depending on what it's doing could even be using marginally more power (fullscreen video takes less power than video shown in a viewport covering only part of the screen).
In Default mode, switching to a different app will deactivate the first one, but then the other app is running... you'll almost always have one app active this way. (Running two apps, then closing one without making the other one go fullscreen will mean the leftover app is still deactivated actually, in Default mode.)
If you have the tablet in Paused mode, the app is deactivated immediately when minimized.
Some apps have no need to be minimized... they're written efficiently. Many are not, and could be chewing up extra power, some of them *lots* of extra power, when not deactivated.07-12-11 10:00 AMLike 0 - Agree with pete, play the HD video during one hour and check your battery drain, I will try this at home, just to check.
When I surf on the web I have almost 1% down every 3 minutes., so by extension 5hrs of intensive surfing07-12-11 10:02 AMLike 0 - Yeah, I played nfs for 30 minutes at 0% battery life.
The original build which was the first one you got when you bought the playbook was the best at battery life.
It got worse with 1.0.3 and 1.0.5 but 1.0.6 is good.
I have wifi on, bluetooth on, max brightness, showcase mode on and with medium usage it lasts the whole day.
It's a tough question to quantitatively answer. Nobody is going to use the playbook for 10 continuous hours. But 10 collective hours in one day, I'd say you can get about that.07-12-11 11:56 AMLike 0 -
The display at full brightness.
Streaming audio at full volume (takes power to amplify and power speakers)
Any radios (wifi, bluetooth)
Did I leave out anything?07-12-11 12:17 PMLike 0 - Overall max life of about hours with reasonably good use.
1. Just playing games (with no BB bridge on) - about 4.5 to 5 hours - my family were playing games
2. playing games on PB (again my daughters were playing) and the bridge WAS ON. - full battery drained to 20% in about 3 hours.
3. Streaming a full movie onto my HDTV via HDMI - battery lasted for the entire 2.45 minutes and status indicated 30% still remaining. - NO Bridge again
4. live streaming a cricket match for about 3.5 hours with bridge ON - battery lasted all the time and status at the end - 15% remaining.
5. general browsing including news articles video clips etc battery lasts about 4 hours with bridge ON
and about 5 hours without bridge.
And all the time PB is automatically connected to home wi-fi even when only playing games.
Conclusion is: Bluetooth connectivity for Bridge and the Wi-Fi connections take a lot of power and irrespective of that I think the battery life is pretty decent.07-12-11 02:06 PMLike 0 -
I've published some detailed measurements already covering some of those items.07-14-11 04:36 PMLike 0
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