This post will be regularly updated with new results that have been collected by me, and also by my kWeld customers.
The following high current power supplies have been tested with the kWeld system and can be recommended:
IMPORTANT: Lithium Polymer batteries are potentially dangerous. If they fail internally, they can spontaneously self-ignite. It is therefore strongly advised to permanently supervise them during use and also while charging them, and to store them in a fire safe container when not using them.