Battery Pack
We are still evaluating the best options so this page is also work in progress.
2000mAh LiPo using a Lipo saver LED (to avoid the battery to discharge below a critical 9V)
Tests at Elphel with this battery pack
Digipower battery pack
11.1V 4400mAh 48.8Wh
provides: 5V (USB connector) 0.6A, 16V 2A.
It has remaining capacity status LEDs, power on/off button and can be charged while being used.
Price ~100$
The cameras power consumption (10349 - ElphelWiki) is around 5W at full load (streaming video and writing to internal HDD).
With the optional 9-36V Power supply (best efficiency at around 15V) we did an example with a 12 V battery pack (Pb batteries would do the job)
The maximum current with 12V would be around 400mA
Theory: max 9.5 hours @ 4000mAh
External links:
- How to choose your battery (reference for the power consumption of different cameras and manufacturers. Sony PD 170: 8 Watts Red One: 75 Watts)
- HY Research - Simple Li battery power supply (project of building a small Lithium Ion battery pack)
- http://wiki.elphel.com/index.php?title=Talk:Modifying_the_camera_for_12-... (Some more infos at elphel)
Notes/suggestions:
- Its important to have a proper mount system for the battery pack that allows battery changing without screwing and plugin in multiple connectors. Examples are the Sony V-Mount for their professional cameras or the Anton Bauer mount.