[Solved] Unprotected BT 26650 and 21700 30A

Batteries and Chargers Rechargeable Batteries
1

Edit: I will order this BT Shockli 26650 5500mAh 3.7V 30A
and 21700 Shockli 21700 4550mAh 30A

I don’t think FT Shockli 26650 5500mAh 30A and
FT Keeppower 26650 5250 mAh 20A. will work in series.