Power Overview, Battery Selecting and Sourcing

[WYVERN2742]

Create an overview of power consumption. Should include:

• Draw when Idle
• Draw when max computation
• Draw when transmitting
• Draw when recieving
• Estimated lifetime in all modes

[WYVERN2742]

Original idea was to use 14500's (AA) LiFePO4 batteries, but their discharge rate didn't meet our criteria (0.2C, of 600mAh is nowhere near enough)

Found out there are good (0.2C @ 1800mAh) 18650's, which aren't that much larger than AA. https://www.allbatteries.co.uk/lithium-iron-phosphate-battery-ifr18650-lifepo4-3-2v-1-8ah-ft-acl9073b10.html These have a budget of 360mAh max draw.

Max Draw of BL602 is 310mA at with (11b - 11Mbps @21dBm 99% duty cycle)

And can use a nice battery charger for them, don't need a custom charge circuit https://www.amazon.co.uk/dp/B0CB81GV49

Since LiFePO4's are good at trickle charging, they're already used in most solar applications, so making a solar charger shouldn't need to change the battery type.

[WYVERN2742]

Batteries have been purchased! (#7)