Please think health and safety!
Install a fuse direct to one battery terminal. That battery can happily deliver 200A, just before the smoke is released. I use a 20A spade fuse
with car style spade terminals (little silicone applied grease to keep the corrosion at bay).
Incidentally I use 2 X 5Ah Lipos (each with a 20A fuse), parallel up to at the time of use to give me 2 Hrs of activation at 80W CW/SSB. My choice of connector is the XT40 but that is just me. Soldering is not a problem, 25W iron, a little flux and time required.