Power
Power: 4 guides.
01
18650 power: capacity, BMS and safety
How to build a self-contained 18650 power pack for a hotspot and radio: real cell capacity, why you need a BMS, the CC/CV charge profile, a 5 V converter and safety…
Power
02
Powering a DMR hotspot: clean PSU and battery backup
Why Raspberry Pi and MMDVM are so sensitive to power: the lightning-bolt icon (undervoltage) leads to glitches, reboots and a dead SD card.
Power
03
Radio batteries: Li-ion vs Ni-MH, capacity and care
What batteries are inside your radio: Li-ion/LiPo versus outdated Ni-MH and Ni-Cd. Why
Power
04
Solar panel for a hotspot: an off-grid node in the field
How to power an MMDVM hotspot from the sun: the panel-controller-battery-5V chain, choosing PWM or MPPT, sizing capacity for the night and cloudy weather, Li-ion protection and…
Power