@jasonI managed to catch a hardware exception when my batteries died. Sorry it's a screenshot; I don't have RN clipboard and the best my OCR capture app could do with it was this f'in mess:
<2>task_start(41): Hypnos: v4.12.21
< 1 Heap Block OX20002COC - Ox20007BFF (19k)
< 1 BOD33 BOD12 SYST WDT EXT POR
< I > log_rcause(385):
Hardware Exception
<2>crash_report(205): —
rO:
rl
OxOOOOffb4
r2
r3
<2> 0): rl 2.
<2>crash_report(211): Ir:
0011070
< crash
_report(21 2): ra.
< 2> crash_report(21 3): xpsr.
< crash_report(21 7).
OxOOOOd1ab
Ox20007f28
Ox20007f23
ox20002c70
OxOOOOda41
Ox0100d9c1
< 1 > Initializing Pas
t Profile: A
<3>usb_hotplug(46): Connected
I hope it's helpful; I'm going back to rechargeables because alkalines are expensive. :)