BEFORE YOU DO ANYTHING - CHECK THE BATTERY!

I-fixit sent me a bad battery, which I didn’t realize until it was already install. They sent me a new one, but I wasted hours uninstalling and reinstalled.

Get a volt meter and measure the voltage on the output of the battery pack. If it reads 0 V, SEND IT BACK. It should read over 2 V.

Went the the entire replacement process, the tried to turn it on and nothing. Checked all the connectors and everything looked good. Then I measured the voltage at the pancake connector and I see 0.000V (reassembled and left it plugged in for a while, but no change). Did I receive a bad battery pack?