I am using a Fluke 87 III true RMS multi-meter to record voltage and resistance values.
MOD: EA clone with gold plated contacts.
RBA: Nimbus V2 clone, dual coil RDA
LOAD: Dual 2.2Ω coils. 1.1Ω load
BATTERY: Efest 18500 IMR
Kick2 wattage setting: Max ~15w
When the kick 2 started pulsing the output indicating that low voltage protection circuitry was active, I performed and observed the following conditions.
1. Static voltage (no load) of battery 3.65v
2. Placed battery back in same MOD, using same RBA, same coil/load without kick2: Measured voltage drop @ 3.39v
Both of my kick 2s do this although the 2nd one as of last measurement cutoff at 3.55v static.
Reading kick 2 specs on your website is states:
low battery cutoff: 2.7 Volts loaded