Welcome (back) @Janie47! You've found an AMAZING group of folks here.....
Quickly, re: the batteries. For the Provi MINI - you need 18350 BUTTON-tops. AW is the oft-recommended brand. For the Standard - 18490/18500 BUTTON-top. If you get the extension cap, you can roll with 18650s (button-top - I know, I sound like a broken record.)
I'll BRB with some battery links. And chargers....
Quickly, re: the batteries. For the Provi MINI - you need 18350 BUTTON-tops. AW is the oft-recommended brand. For the Standard - 18490/18500 BUTTON-top. If you get the extension cap, you can roll with 18650s (button-top - I know, I sound like a broken record.)
I'll BRB with some battery links. And chargers....