On Saturday, October 27, 2018 at 4:33:10 PM UTC-4, wrote:
Here is one source for the needed battery cells (with tabs pre-welded):
https://www.batterybob.com/products/...tabs-lith-8-1/

Here is a source for the whole battery pack ready to plug in, $50 - not blessed by the factory:
https://www.ebay.com/itm/ACR-ResQlin...1/332810112016

I think I've been convinced that a PLB isn't worth buying.
T8