The first night I had it, running UBports OTA-4 (the latest at the time), I charged it up to 100% and roughly 12 hours later it was <30% with the modem disabled

The first night I had it, running UBports OTA-4 (the latest at the time), I charged it up to 100% and roughly 12 hours later it was <30% with the modem disabled. Battery life is not anywhere near what you're used to on Android or iOS because in addition to SoC suspend functionality, the wireless/cellular drivers also need work re: sleep.