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Lithium Batteries: Where We Came From, Where Weβre Going.
The best of times. Battery technology has made huge advances in a relatively short amount of time. When batteries started being commercially produced in the early 1900s, lead acid or βwet cellβ batteries were the only option. βDry cellβ batteries were made too, but they were for small applications such... Read more Β»
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My Off-Grid & Grid Down Comms Energy strategy
Benefits of adding parallel batteries in an off-grid system
Power Queen LiFePO4 for Christmas
Off-Grid Grid-Down Comms & Current consumption
The Off Grid Ham 100 Watts For $300 Solar Project -2023 Update
A classic never goes out of style. Way back in 2016 I posted the Off Grid Ham 100 Watts for $300 Solar Plant. Even today, that article is still hugely popular and one of the most viewed posts on this website. In a 2020 update, the $300 threshold not only... Read more Β»
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Lithium Battery Fire Risks: Sorting It Out.
Exponential market growth! Lithium battery technology has made exponential market penetration in the last decade or so. Once an exotic and expensive platform, today nearly every battery-powered device uses lithium. Along with increased market acceptance comes attention, both good and bad. Most of the bad news circulating about lithium batteries... Read more Β»
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Air Compressors need off-grid power too
Turn Thinking Into Doing (But Do Some Actual Thinking First).
Itβs better to have it and not need it, than need it and not have it. Itβs been quite a summer! Flooding, extreme heat, wild fires, and (at this writing) a hurricane just tore up the Western USA and another storm is churning in the Gulf of Mexico. Every time... Read more Β»
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Perovskite Solar Update.
The βholy grailβ of solar energy? Itβs been over six years since Off Grid Ham first covered perovskite solar. For the unfamiliar, perovskite solar is a new type of photovoltaic technology that is based on perovskite-structure crystals. There are several advantages. First, is efficiency. Perovskite solar is far more efficient... Read more Β»
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Planning For Off Grid Home Solar.
Wish list. Most off grid hams are off grid only for portable operations. Many of them would like a larger, permanent home system but donβt know where to start or what such a project involves. If having an off grid home solar power system has been a longtime wish, this... Read more Β»
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Series and Parallel Battery Connection Techniques.
Graduation time. A lot of if not most off grid hams have only one battery in their system. Connecting a single battery is more or less self-explanatory. What should you do when you expand your system to include multiple batteries? Should they be in series? In parallel? Is one way... Read more Β»
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QRP Alternatives: After The Funeral, What Comes Next?
Let the dead rest. Now several weeks out from being the #1 ham radio news story, the Yaesu FT-818/817 product sunset has faded from attention. Anyone not already on the Yaesu platform will have to seek QRP alternatives. Most hams were surprised, some were disappointed, and some were strangelyβ¦glad? One... Read more Β»
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