After watching Will Prowse videos am doing a beginner friendly series covering this boat upgrade.
Buying the cells - the advice for buying direct from China is at the end of the video.
Building the battery
Part 3 comeing soon - installing in boat and config of MTTP
You can find out more...
This is my new boat 12v 100amp lipo04 battery built outa raw cells with a BMS charged by 24v 250w solar to MTTP controler.
Next stage is to setup spit chargeing with the 20amp constant current DC boost converter feeding say 15-16v to the simple 16amp solar charge controller for the lead acid...