The AXIOM Beta developer kits ship with 5V DC power supply.
AXIOM Beta takes two 5V inputs (1x Microzed, 1x rest of electronics) and together draws 4A max, power consumption depends on operation and is in the 10-20 W range typically.
Two 5V 2.5A output converters should be suitable.
For batteries both isolated as well as non-isolated DC converters are suitable.
https://octopart.com/search?q=171050601 would be an option.
Battery mount for NP-F970/F750/F550 batteries to power the AXIOM Beta. Includes power usage and capacity monitoring to estimate remaining charge and time remaining.
Proprietary protocol from Sony that exchanges metadata between batteries and devices. Expected data inside the protocol includes: charge cycles, battery ID, remaining total capacity, remaining current capacity, etc. Only official Sony batteries incorporate this protocol, cheap replacement parts don't and some Pro Sony cameras refuse operation with batteries without InfoLithium communication.
Decrypting this protocol could give us more insight into the battery but is not essential as we can measure the discharge curve and estimate remaining capacity rather accurately that way.
With batteries the conveniences are being able to:
An external battery needs to provide two clean and accurate 5V supplies rated at 2 Amps or more. We have witnessed a battery that could not provide the required peak currents and resulted in visible horizontal "wave" noise artifacts being visible in the image of the Beta.
For connecting the Beta to dual USB power supplies a special cable is required:
1x Molex 87439-0500 Pico Spox 5pin Housing 4x Molex 87421-0000 Pico Spox Crimp Terminal AWG24 4x 19x36AWG - 45x40AWG 24AWG Flexible Cable 2x CNC Tech 1002-024-01300 CONN USB A TYPE SOLDER ASSY 2x CNC-Tech 1001-027-BL-01000 CONN HOOD USB A MALE BLACK CNC-Tech 1001-026-BE-01000 CONN HOOD USB A MALE BEIGE
TODO: add picture of assembled dual USB cable here.
We have successfully tested the following USB battery packs with the Beta so far:
When evaluating a new battery/power supply we recommend using two USB power meters between camera and battery: https://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Delectronics&field-keywords=usb+current+meter
On Labs: Battery System
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