No idea with regards to the cost of these, but I guess not cheap.
By the way, HKJ, we have an open discussion about soldering batteries with low temperature solders. Came to my mind it could be useful to have experimental results with regards to the actual health/performance/health impact inflicted by the soldering procedure thermal stress.
Take a peek here if you wish: Soldering (batteries, etc) … with Sn42Bi58, Rose's Metal and other low melting solders
Maybe a little “before” and “after” test batch on a handful of cell formats/chemistries? Wouldn't need to be very thorough, a few cells and a few low/high rate discharge graphs can bring us pretty decent information.
And thanks for another review. :-)
Cheers ^:)