First, thank you for @BI4JMO The battery solution shared by the expert can be found in the original post here:https://forum.hamcq.cn/d/3427
I decided to recreate it during the New Year for everyone's reference.
Cost
Battery pack
The seller provided a battery and welded the semi-finished product for 74 yuan + 15 yuan in shipping fees = 89 yuan.
Protective board: 26 yuan + 8 yuan shipping = 34 yuan
Battery waterproof box (including pre-drilled holes) - 15 + 5 = 20 yuan
XT60 connector set (XT60E-F with waterproof cover + XT60H-M + each with 12AWG cable, 20cm) for a total of 14.8 yuan.
10 AWG silicone wire, 1 meter (only a very short section was actually used) - 8 yuan
Other
Stainless steel flux, 3.2 yuan (recommended purchase)
EVA foam, 4 yuan (unused, didn't use it after inserting the battery; there were no gaps)
Quinoa paper - 3.9 yuan (unused; the seller of the batteries helped to prepare it)
Epoxy board, 1 yuan (unused; the seller of the battery helped to make it)
Buki tape - 9.6 yuan (unused, the seller of the batteries helped to install it)
SKYRC's neo6 charger, along with a small yellow fish (model number 109) that I purchased.
Coulomb meter - Not yet purchased
Some suggestions
Finally, the XT60E-F was not used. I bought a pre-soldered kit and wrapped it with heat shrink tubing. However, the connection was too stiff and difficult to bend, making it hard to fit into the waterproof box. Therefore, I ended up using a standard female connector (as shown in the picture). If you want to replicate this, I recommend not buying the XT60E-F kits that come with wires pre-soldered.
Display
Testing has shown that a 100W transmitter works perfectly. With a 15W transmitter, I was able to use FT-8 intermittently, and it seems like I could get about 3-4 hours of operation (approximately using 12Ah, the radio is still running).
Regarding the waterproof box, if you need the seller to drill holes, here's a sketch I drew and can send to them. The drilling is very precise.
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