Today we will take a look at the Bluetti B300K expansion battery, connect it to basically everything Bluetti makes, do some efficiency testing, speed testing, and sound level testing.

00:00 - Introduction
04:45 - Ports and connectors
08:32 - Size and Weight
10:32 - B300K with AC200Max
15:04 - Mixing different batteries with B300K
19:19 - AC200L and B300K
22:17 - AC300 and B300K
24:41 - AC500 and B300K
25:57 - Single point battery efficiency test
28:43 - Battery recharge max speed test
29:47 - Audio level test
32:12 - Battery compatibility matrix
39:45 - Conclusion