Survival Tech Nord has an open project running for making a small external battery bank for radios that operate at low output (5+ watt).
The basic principle is using 18650 lithium-ion (Li-Co or Li-Mn) batteries that have big energy density and match their voltage to that of the radio.
Continue reading “The Ultrapack Battery Pack for QRP Low Power Radios”
This is a continuation of two other projects the External Battery Pack for our handheld radios and an improvement on the Battery Eliminator we did for the Bao.
The Battery-Pack / Powerbank
This is a smaller size using two 18650 Lithium-ion rechargables to get the same voltage as the original Baofeng battery.
We have an affinity for the 18650 batteries, mainly because they are easy to handle, they lead the battery technology at the moment, can be cross loaded to other devices such as USB powerbanks, and we have a plenty of, since we are into flashlights too.
Continue reading “New Batterypack and Custom UV-5R Battery Eliminator”