Hi, I have a question on 18650 battery compatibility with the Weltool T19. What is the minimum max. discharge current required for an 18650 to function properly in the T19? Is 5~8A enough? If not, will it just run dimmer or will it keep blinking? Thanks.

The T19 requires a battery with at least 10A discharge. If a battery has less than 10A, the output will be reduced.

The T19 comes with a Weltool battery with a Continuous discharge current of 15A. As a general rule, we would recommend using the same battery for the best results.