This is the second test video for the UltraPack DIY 4S 18650 Lithium-ion Battery Pack for man-portable & Emergency Communications. in this video we're running a 30 minute long stress test on the Yaesu FT-817ND and Olight 18650 Lithium-ion batteries. This DIY battery pack project can be used with the Yaesu FT-817ND or other QRP radios.

Pick up some Olight 18650 batteries during the Olight Black Friday Sale.

You can read about this project on SurvivalTechnology.Net
[ Ссылка ] Disclosure: Some of the links above are affiliate links. This means that, at zero cost to you, I will earn an commission if you click through the link and finalize a purchase.

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