PROT-BAT-INT-SHORTCritical

Felicity battery error PROT-BAT-INT-SHORT

Battery Internal Short Circuit protection

Critical — the battery shuts down and latches a protection fault. Don't keep restarting it — the cause needs checking first.

LPBA48100-OL

BatteryCritical

What it means

Battery Internal Short Circuit protection — Listed under 7.1 Battery System Features 'Battery Protection': protects the cells/pack against an internal short-circuit fault.

Cause: The BMS has detected a short circuit inside the battery pack — on a cell or the internal power path — and tripped the internal short-circuit protection to stop current flow.

How to fix it

  1. Power down the inverter, wait 5 minutes for capacitors to discharge, then restart.
  2. If the fault recurs immediately or repeatedly, record the exact code and contact your installer or the manufacturer's service line.

Source: felicity-5.1-kwh-user-manual.pdf, p.4

Frequently asked questions

What does error PROT-BAT-INT-SHORT mean on a Felicity battery?
PROT-BAT-INT-SHORT means: Battery Internal Short Circuit protection. The BMS has detected a short circuit inside the battery pack — on a cell or the internal power path — and tripped the internal short-circuit protection to stop current flow.
Is error PROT-BAT-INT-SHORT a fault or a warning?
PROT-BAT-INT-SHORT is a fault code: the battery enters protection and stops normal operation until it is cleared.
How do I clear or fix error PROT-BAT-INT-SHORT?
Power down the inverter, wait 5 minutes for capacitors to discharge, then restart. If the fault recurs immediately or repeatedly, record the exact code and contact your installer or the manufacturer's service line.

Related error codes

Other codes on the LPBA48100-OL

All LPBA48100-OL codes

Prefer the full written guide? Read the complete Felicity inverter error-code guide

Compiled from official Felicity user manuals. Always consult your device manual and a qualified technician before performing repairs.