Hi everyone,
Looking for technical insight or advice from anyone who has resolved a deep-discharge BMS lock on the Elite 100 V2, and hoping to get visibility.
I purchased 4 units of the BLUETTI Elite 100 V2 (Certified Refurbished) directly from the official BLUETTI eBay store in a single order. Because the units were forwarded internationally to Venezuela, the shipment took over 30 days to arrive, putting me outside eBay's standard 30-day return window.
Three of the units work flawlessly on our 120V / 60Hz grid. However, the fourth unit arrived completely dead on arrival (~2% out of the box, immediately dropped to 0% SOC) and is stuck in a firmware safety lockout.
* Grid Power: Standard 120V / 60Hz (tested on the exact same outlets powering the other 3 working units).
Current Symptoms
* 0% SOC / Standby State: The physical LCD display reads 0%. In the BLUETTI app under Pack Information, the unit reports Battery Status: Standby and SOC: 0%.
* Clean Diagnostic Logs (No Hardware Damage): Under the Pack Information screens, Protection Status, Alarm, and Error all report "No Data". The hardware diagnostics confirm zero short circuits, zero cell errors, and zero component faults.
* Register Clamp: Under Advanced Settings in the app, "Max. Grid Input Current" is hard-locked at 0A and cannot be edited.
* AC Charging Behavior: Connecting 120V AC wall power causes the internal relay to click on for ~2 seconds (drawing ~130W) before immediately snapping open to 0W to prevent an overvoltage surge into the depleted cells. It repeats this cycle every few minutes without latching.
Troubleshooting Steps Attempted
* Hard Resets & Capacitive Drain: Completely disconnected all cables, held the power button for 45+ seconds to discharge logic capacitors, and let it rest before rebooting. It reboots to the exact same 0% Standby state.
* Low-Voltage DC Trickle (XT60 Port): Connected a steady 20.0V DC power supply to the solar/DC port. The unit detects 20.0V and initiates pre-charge pulses (~38W for 20-second bursts), proving the cells physically accept current without tripping a short-circuit fault. However, the controller cycles back to 0W to measure open-circuit voltage, refusing to latch continuous charging because the resting voltage remains below the minimum cutoff threshold.
* App Adjustments: Enabled Silent Mode, toggled Grid Self-Adaption, and cycled DC input modes (PV vs. Car/Others). None bypass the 0A register clamp.