Portable Operation Power Supply Guide - ON7IR Blog
Choosing the right power supply for portable ham radio operations, including battery types and converters.
Description
The Icom IC-705 portable operation power supply guide details the use of a car battery jump starter and a step-up/down converter for field power. It examines various power supply types, including LiFePO4 batteries, lead-acid batteries, and supercapacitors, discussing their respective advantages and disadvantages for QRP and portable setups. The resource emphasizes practical considerations such as capacity, weight, discharge rates, and charging methods crucial for reliable off-grid operation.
The article compares the energy density and cycle life of different battery chemistries, noting that LiFePO4 batteries offer significantly more cycles (e.g., 2000-5000 cycles) compared to lead-acid batteries (e.g., 300-500 cycles). It also touches upon the integration of solar panels for recharging and the importance of proper voltage regulation to protect sensitive radio equipment, providing insights into maximizing operational time during DXpeditions or POTA activations.