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Tag Archives: radiob

Build a Really Big Lithium Ion Solar Battery

Roy Creek Ranch Posted on August 30, 2023 by JimSeptember 9, 2023
photo of the Really Big Lithium Ion Battery Box

The next upgrade for our Solar Power System was a Really Big Lithium Ion Battery (RBB). When we first installed the system in 2020, I didn’t have a cost-effective solution for Lithium Ion (LiFePo4 chemistry). That came later with the acquisition of a lot of LiFePo4 cells. Since then, I’ve built two small batteries to get used to the technology; one as a portable solar generator, and a slightly larger one to power the ham shack. With those under my belt, it’s time to tackle a 48-volt battery to replace the existing lead acid batteries.

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Posted in solar, Projects | Tagged 16s, 48 volt, battery, battery management system, bms, howto, lithium ion, off-grid, radiob, solar, storage

Build a Handy 12-Volt Solar Generator with LiFePo4 Batteries

Roy Creek Ranch Posted on July 23, 2023 by JimDecember 7, 2023
photo of the completed solar generator

Previously, I wrote about Upgrading a Solar Power System and mentioned a cache of new Lithium Iron Phosphate (LiFePo4) cells. The “ThunderSky Winston” cells had come from a Segway repair operation and were new. A little looking around the ‘net revealed they were still available from GWL Group. With a capacity of 60 Amp Hours (AH) and nominal voltage of 3.3 volts, they looked useful for building a 12-volt Solar Generator.

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Posted in solar, Projects | Tagged battery, bms, build, bus bar, charge, controller, DIY, generator, howto, inverter, iron, lifepo, lithium, management, phosphate, radiob, solar, storage, system, wb0mmc
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