Also applies to:FLA48200
What it means
Charge overcurrent
Cause: The charging current reached the BMS trigger value and stayed there for 15 seconds, activating charge overcurrent protection: the charger or inverter is pushing more current than the pack accepts. The battery disables both charging input and discharging output while in fault mode.
How to fix it
- 1Restart the unit.
- 2If the error persists, contact the repair center.
Source: Felicitysolar FLA12100 12.5Kwh Battery Energy Storage System User Manual.pdf, p.1 · Felicitysolar FLA48200 48V 200Ah 10kWh Lithium Phosphate Battery User Manual.pdf, p.12
What it means
Charge overcurrent — Charging current exceeds the BMS protection limit.
Cause: The charging current reached the BMS trigger value and stayed there for 15 seconds, activating charge overcurrent protection: the charger or inverter is pushing more current than the pack accepts. The battery disables both charging input and discharging output while in fault mode.
How to fix it
- 1Restart the unit.
- 2If the error persists, contact the repair center.
Source: 6peluqppy_66a93554057c8.pdf, p.12
What it means
C05 — Charge overcurrent.
Cause: The charging current reached the BMS trigger value and stayed there for 15 seconds, activating charge overcurrent protection: the charger or inverter is pushing more current than the pack accepts. The battery disables both charging input and discharging output while in fault mode.
How to fix it
- 1Restart the unit.
- 2If the error persists, contact the repair center.
- 3When the charging current reaches the trigger value and lasts for 15 seconds, charging overcurrent protection is activated, entering fault mode.
- 4The battery disables both charging input and discharging output.
- 5The fault is automatically cleared after 1 minute.
- 6After 10 occurrences, the fault can no longer clear automatically, requiring a manual battery restart.
Source: FLA48250-EU_Manual.pdf
Also applies to:HE-GF-FLA-48500
What it means
Charge overcurrent — Charging current exceeded the allowable limit.
Cause: Charge current above recommended (≤200A continuous, 300A 15s peak).
How to fix it
- 1Restart the unit.
- 2If the error persists, contact the repair center.
Source: felicitysolar FLA48500 LiFePO4 Battery System for Households User Guide.pdf · HE-GF-FLA-48500 Manual_20250327_EN.pdf
What it means
Charging Overcurrent Protection — Charging current reached the trigger value and lasted for 15 seconds. Battery enters fault mode, disabling both charging input and discharging output.
Cause: Charging current stayed above the BMS trigger value for 15 seconds — usually because the charge-current setting on the inverter is higher than the battery's recommended value.
How to fix it
- 1Power down the inverter, wait 5 minutes for capacitors to discharge, then restart.
- 2If the fault recurs immediately or repeatedly, record the exact code and contact your installer or the manufacturer's service line.
Source: Felicity-FLB48314TG1-Manual.pdf
What it means
Charge overcurrent — Charge overcurrent. Charging current reached the trigger value for 15 seconds; charging overcurrent protection activated and the battery entered fault mode disabling both charge input and discharge output.
Cause: Charging current exceeded trigger value for 15 s. Inverter charge current setting may be too high.
How to fix it
- 1Fault auto-clears after 1 minute.
- 2After 10 occurrences, manual restart is required.
- 3Restart the unit; if the error persists, return to repair centre.
- 4Set inverter charge current to recommended value (60A x N, max 400A).
Source: Benutzerhandbuch - Felicity FLS48100SG2.pdf
What it means
Battery charge overcurrent — Charge over-current fault displayed on the LCD BMS fault code / flag screen (section 4.4).
Cause: Charge current exceeded the recommended limit. Per section 2.3 the recommended charge / discharge current is <=50 A and the Max Charge/Discharge Current (15 s) is 100 A; per section 2.4 Max. Charging Current is 50 A * N (N = number of packs in parallel).
How to fix it
- 1Restart the unit, if the error persists, contact the repair center.
- 2Reduce charge current at the charger / inverter to within 50 A per pack (section 2.4).
Source: 358-010291-07.pdf, p.8
Also applies to:LPBF48100-H
What it means
Battery charge overcurrent — Charging current has exceeded the BMS protection limit.
Cause: Charging current above the maximum charge current rating (>120A on LPBF48200-H).
How to fix it
Restart the unit; if the error persists, contact the repair center.
Source: Manual-LPBF48200-H.pdf, p.10
What it means
C05
Cause: Charge overcurrent — charging current exceeded the protection trigger value; the inverter or charger charge-current setting is too high for this pack.
How to fix it
Restart the unit, if the error persists, contact the repair center.
Source: Felicitysolar LPBF48350 17.5kWh 48V Solar Battery Pack with BMS User Guide.pdf
Also applies to:LUX-Y-48280LG01LUX-Y-48300LG01
What it means
Charge overcurrent
Cause: Charging current exceeded the protection threshold.
How to fix it
- 1Restart the unit.
- 2If the error persists, contact the repair center.
Source: LUX-E-48100LG03-Lithium-Battery-User-Guide.pdf, p.12 · LUX-Y-4828048300LG01-Lithium-Battery-User-Guide.pdf, p.8
Also applies to:LUX-E-48230LG03LUX-E-48250LG03
What it means
C05
Cause: Charge overcurrent — charging current exceeded the protection trigger value; the inverter or charger charge-current setting is too high for this pack.
How to fix it
- 1Restart the unit.
- 2If the error persists, contact the repair center.
Source: LUX-E-48200LG03-Lithium-Battery-User-Guide.pdf, p.12 · LUX-E-48230.250LG03-Lithium-Battery-User-Guide.pdf
Also applies to:LUX-X-48050LCG01LUX-X-48050LMG01LUX-X-48050LG01M2LUX-X-48050LG01M3LUX-X-48050LG01M4
What it means
C05 — Charge overcurrent.
Cause: Charging current exceeded the protection trigger value — the inverter or charger charge-current setting is too high for this pack.
How to fix it
Restart the unit, if the error persists, contact the repair center.
Source: LUX-X-48050LG01-low-voltage-battery-user-guide.pdf, p.17
Also applies to:LUX-X-48100LCG01LUX-X-48100LMG01
What it means
Charge overcurrent — Charging current has exceeded the protection limit.
Cause: Charging current exceeded the protection trigger value — the inverter or charger charge-current setting is too high for this pack.
How to fix it
Restart the unit; if the error persists, contact the repair center.
Source: LUX-X-48100LG01-Litium-Battery-User-Guide.pdf, p.17
Also applies to:LUX-X-48100LCG01-USLUX-X-48100LMG01-USLUX-X-48100LG01-USM2LUX-X-48100LG01-USM3LUX-X-48100LG01-USM4LUX-X-48100LG01-USM5LUX-X-48100LG01-USM6LUX-X-48100LG01-USM7+1
What it means
Charge overcurrent — Charging current has exceeded the protection limit.
Cause: Charging current exceeded the protection trigger value — the inverter or charger charge-current setting is too high for this pack.
How to fix it
Restart the unit, if the error persists, contact the repair center.
Source: 358-S010024-03LUX-X-48100LG01-User-manual_compressed.pdf, p.23