Guest dwok Posted February 27, 2011 Report Posted February 27, 2011 Anyone know what it actually is? I also have a Commtiva N700 which has a battery capacity of 3240 mAh. I typically use the N700 for an hr per day mainly for ebook reading and for little light browsing and only charge it once a week (if that). The standby time of the Vega improved with an update but I still have to check it on a daily basis and might get 2 days max before having to recharge. Different hw obviously but I'm curious about the standby efficiency of the Vega.
Guest Bobbler Posted February 27, 2011 Report Posted February 27, 2011 Anyone know what it actually is? I also have a Commtiva N700 which has a battery capacity of 3240 mAh. I typically use the N700 for an hr per day mainly for ebook reading and for little light browsing and only charge it once a week (if that). The standby time of the Vega improved with an update but I still have to check it on a daily basis and might get 2 days max before having to recharge. Different hw obviously but I'm curious about the standby efficiency of the Vega. 3300 mAh http://www.flickr.com/photos/morchuboo/5209067144/
Guest madmerlin Posted February 28, 2011 Report Posted February 28, 2011 not quite on topic so i apologize for hi-jacking thread but i noticed today that after i stupidly let my battery run out completely, i mean dead, when i booted it up, all clock / time settings were reset to defaults. Not sure whether this is just a small bug or gap in code and if any other settings were re-set, but the time and date are most obvious. Im running advent vega r7 from the online kitchen will all the goodies ( i have the r8 ready just haven't pushed it yet. )
Guest warriorscot Posted February 28, 2011 Report Posted February 28, 2011 In order to keep things like time and date up to date some power is required PCs and Laptops have something called a CMOS battery that provides power to store the basic computer state and keep the time and date correct. The vega being a completely portable device only has one battery so letting it run flat means no power for the chronometer.
Guest dwok Posted March 1, 2011 Report Posted March 1, 2011 I'm going to stick my neck out here and claim the vega is drawing too much current on standby. I suspect by as much as 5x what it should be. Anyone have any contacts/docs to check?
Guest jamsiel Posted March 1, 2011 Report Posted March 1, 2011 It does seem to go down quick in stand by. Got Mine a week ago, 1.09, installed custom R8 rom, few app's (fb, twidroyd)installed, turned off as much auto syncing as i can, and background data. Dont know if there is still something sucking the battery. Switched it on at lunchtime today, showing 69% checked a couple emails over wi-fi, did full power off. someone came to ask about it, turned it back on, battery now showing 20%???? Clearly something not right somewhere in the battery power reporting.
Guest dwok Posted March 1, 2011 Report Posted March 1, 2011 100 hrs standby seems typical with owners here but I think it should be much better. Still trawling but I've seen a figure of 10mW for the Cortex-A8 in standby. Allowing for other hw if we say 50mW sounds more practical then that would be 244.42/0.05 = 488hrs (hence the 5x figure above). Has anyone confirmed battery drain when powered off? This would definitely point to leaky component/s somewhere. Although the fact that standby time was significantly increased with an update might also point to driver problems.
Guest warriorscot Posted March 1, 2011 Report Posted March 1, 2011 There are so many things on the standby battery drain its not funny, just read the forum. Also the vega draws power if it was drawing 5x the current you would have a smoking plastic brick. The vega has apps that will continue to update and use processor cycles even when on standby this gives a drain of 8-14% for a 12 hour period on standby. It could be improved but it's not that bad really could be a lot worse. Nothing to do with "leaky" components just good old fashioned software issues and the necessary power to run a 1Ghz chip and DDR2 memory.
Guest dwok Posted March 1, 2011 Report Posted March 1, 2011 There are so many things on the standby battery drain its not funny, just read the forum. Also the vega draws power if it was drawing 5x the current you would have a smoking plastic brick. The vega has apps that will continue to update and use processor cycles even when on standby this gives a drain of 8-14% for a 12 hour period on standby. It could be improved but it's not that bad really could be a lot worse. Nothing to do with "leaky" components just good old fashioned software issues and the necessary power to run a 1Ghz chip and DDR2 memory. WR I think you are misunderstanding "standby", nothing should be running in standby and essentially any hw that can be powered down should be powered down. The processor specifically should be doing nothing no matter what speed it is rated at when fully powered up. This link provides a useful comparison especially near the bottom where it says Battery life: The dual-core processor in the LG Optimus 2X is less power hungry than a single core processor and so 2X's 1500mAh battery stretches to over 7 hours of talk time and 400 hours of standby. That compares favorably with the iPhone 4’s battery life of 7 hours of talk time and up to 300 hours of standby. LG Optimus 2x Review
Guest jamsiel Posted March 2, 2011 Report Posted March 2, 2011 There is definitely something not quite 100% with the battery status reporting on the custom r8 rom though. When i put my Vega on charge last night, it was at 2% battery. When i turned it on this morning, it was still showing 2% ... a count of around...20-30 seconds, and it catches up and shows 100% So. Battery 100% , Wifi, Autosync both turned off. App's that have Notifications control have all been turned off, and the device has been put into standby (single power button click) Will see what the battery reports when i get home.
Guest warriorscot Posted March 2, 2011 Report Posted March 2, 2011 I understand what standby is "supposed" to mean however the vega and more specifically android have other ideas. The ARM cpu in the tegra 2 system is a miracle of efficiency it is however still drawing a lot of power because a comparable single core could at the same speed draws even more isn't really saying anything other than the single core design isn't as good. Just read the forum this topic has been discussed to death by those of us who have had our vegas since last november.
Guest jamsiel Posted March 2, 2011 Report Posted March 2, 2011 SO, at 6:45 am, device unplugged, 100% battery, everything turned off as mentioned in previous post. Just home, Battery at 86% so it's used...16% battery in standby over...10ish hours...
Guest matthijskox Posted March 2, 2011 Report Posted March 2, 2011 Hi, I've had a lot of troubles with battery life in standby too. To check whether the battery was faulty, i looped a (SD) Divx movie with WIFI on and push email enabled. The vega ran for more than 7.5 hours. Seems normal, right? If so, the standby drain most likely is a software thing since i find it hard to believe that it would hardware-wise leak in standby but not during operation. What are your thoughts on this?
Guest dwok Posted March 5, 2011 Report Posted March 5, 2011 Just to be clear I'm claiming that if you are not playing music, not running any periodic service and have wifi turned off then Android or whatever driver is handling power management should put the Vega into the lowest power state and that in that state you should get significantly more than 4 days standby. I've seen at least one reference from last August (possibly Shuttle info) claiming a standby time of up to nine days, which is more like what I would expect. When I have more time I'm going to do comparisons to other Tegra 2 devices and try and get some actual info from NV (maybe the Advent people would like to chip in?).
Guest schprlock Posted March 5, 2011 Report Posted March 5, 2011 Did you guys remove the Phone.apk and TelephonyProvider.apk? I find battery drain in standby much better after I did, and the only drawback is an extra icon in the notification bar.
Guest jastonas Posted March 6, 2011 Report Posted March 6, 2011 My vega with 1.09 drains battery faster when in standby! Or aaat least badly anyway. 70% 7 hours and found it dead!
Recommended Posts
Please sign in to comment
You will be able to leave a comment after signing in
Sign In Now