12V to 24V Boost Groundside Converter

• Who

  • Daniel Puratich idea

• What

  • Take in 12V and output 24V

  • For powering our 24V battery charger

    • would be massive help at comp and flight tests to be able to charge faster

  • Supply enough power for the charger

    • if the current is really high then this project is going to be waaay out of our skill range

• Why

  • We have 12V server PSUs that are CSA approved

  • We get more power capability out of the charger at 24V

  • we could also just buy this? not sure if it maths out.

Battery charger: HotA F6 Quad Battery Charger (4 x 15 A)

Charger Datasheet

• 1000 W output power limit across the 4 channels, with max current 4 x 15 A.

• Assuming our boost groundside convertor supplies 24V DC to the charger:

  • If we charge 4 batteries at once, the current will max out at 10.4 A per channel (each channel is 250 W / 24V)

  • Alternatively we could just not use max power, and just charge 2 batteries at once with lower power/current.

How much power/current do we need to charge these batteries (how fast do we want to be charging them)?

COTS options:

• AliExpress seems to have the most amount of options and is well priced (but might be a bit sketchy?)