EEVblog 1707 - REPAIR: Goal Zero Yeti 400 Lithium Battery

Dave's Goal Zero Yeti 400 lithium ion battery failed. Repair time.

Forum: https://www.eevblog.com/forum/blog/eevblog-1707-repair-goal-zero-yeti-400-lithium-battery/

00:00 - Goal Zero Yeti 400 Battery failure
01:32 - Hiccuping
03:28 - Teardown
04:47 - Failure hypothesis and potential solution
05:37 - The mains inverter PCB
06:43 - The control PCB
07:36 - Dual battery connectors
08:09 - Measuring the dual battery connections to make sure they are in parallel.
08:58 - The lithium ion battery pack
09:24 - Measuring the battery pack voltage, and the under voltage lookout protection
10:49 - Re-powering just the controller board
11:38 - Progressive system module power up with the battery, isolating the mains inverter
12:23 - Measuring the battery again to see if it's accepting a charge
13:20 - Winner Winner Chicken Dinner
15:34 - No electronics repair needed
15:54 - Goal Zero battery physical design
17:03 - Back from the gym, what's happened?
18:33 - Fault summary

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#ElectronicsCreators #Repair #lithiumbattery
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https://www.youtube.com/watch?v=km6sJSXot74