Low battery with a battery boost accessory

Why does my Tempest station battery not maintain with a new battery accessory. My battery is at 2.38 with a fully loaded battery accessory and goes into save mode?? What am I missing? Yes I have checked the connectors! The station is in full sun as well but was cloudy all day yesterday and boom save mode!

First question - Are you powering the PBA from batteries, or using its external power input? The Tempest’s behavior varies based on the power source.

Second question - What is the firmware revision in your Hub and Tempest? If you provide your station number, we can look it up on the web and see what firmware is installed…

Yes PBA is battery powered, all new lithium

Firmware revision is hub 194 station 165

Station 75753

Battery is currently at 2.34 in the sun!!