waaronw
Member Since: August 23, 2008
Country: United States
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I thought this info may be useful. Last night I did a run test to see how long this block with the 400mah battery would run the Edison. Config:
- Edison, base block and battery block connected
- Power LED traces cut on both blocks
- Ubilinux (not yocto) installed
- Bluetooth drivers were active but radio was not
- Wifi up and connected to a good-signal N network
- System idle apart from a cron job every 5 mins appending uptime to a log and a couple of quick ssh sessions to check up on things.
I saw right at 8:30. Yup, over 8 hours on 400mah.
[UPDATE] A second run with the wifi interface down resulted in 8:55. (The driver was still loaded, so the adapter was likely still powered. More tests to come!)
[UPDATE 2] Removing the driver for both BT and WiFi yielded the same 8:55 runtime. Either the drivers practice some great power saving or I don't know how to properly disable a device. :) PLEASE NOTE: These runtimes are best-case scenarios with no load. If you're doing anything at all with your Edison, it's going to get less time on this 400mah batt.
Hope this is useful!
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Is there any way to monitor the current charge level of the battery with this board? That is, can the Edison monitor charge and warn or gracefully shut down when nearing the end of battery life?
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I love this thing! Saves me a ton of time. My only complaint: The screw terminals are marked "+" and "-" but it would be more accurate to have them labeled as Center and Ring using the classic icon used on most wall-wart transformers. Same on the male version.
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I love this thing! Saves me a ton of time. My only complaint: The screw terminals are marked "+" and "-" but it would be more accurate to have them labeled as Center and Ring using the classic icon used on most wall-wart transformers. Same on the female version.
No public wish lists :(