Ready to build a set of 12V 15A portable outdoor power supply. The materials use lithium iron phosphate batteries, a 40A protection board, and include an ammeter, voltmeter, and wiring terminals. The basic setup is as follows: in the future, it can be customized with XT60 connectors and other components according to your needs. Approximately the size of an Yaesu FT-891. I have personally tested SSB communication with approximately 100W power output, which lasts for about 3-5 hours without any issues.
The estimated cost for driving is under 200 yuan. I'm not sure if there's a market for this. I hope that my fellow users can offer valuable suggestions.
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