Description
Battery Charge Level Unit for Citroën and Peugeot Vehicles
Product Overview
This used Battery Charge Level Unit is designed for a range of Citroën and Peugeot vehicles and monitors the battery state of charge for the vehicle’s electrical and charging systems. It communicates battery condition information to the vehicle control modules, helping to manage charging, start-stop operation and battery health diagnostics. Commonly referenced by original part numbers, the unit is often searched for by mechanics and DIY enthusiasts using those codes.
Features And Function
The unit measures battery voltage, current flow and state of charge, then transmits this data to the vehicle’s onboard electronics. Accurate battery state information allows the alternator regulation and energy management systems to optimize charging cycles and support features such as start‑stop. Failure or drift of this sensor can lead to incorrect charging, reduced battery life or start/stop malfunctions.
Applications
Compatible With Typical Models:
- Citroën C4
- Citroën C4 II
- Citroën C4 Picasso
- Peugeot 3008 I
- Peugeot 308
- Peugeot 5008 I
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Battery Charge Level Unit / Battery Monitoring Sensor
- Product Codes: 9676592280, 9802043580
- Other Numbers: 6500KV, 6500KR
Replacement Procedure
Basic Replacement Steps (For Experienced Technicians):
- Ensure vehicle is parked on level ground and ignition is off.
- Disconnect the negative battery terminal before beginning work to avoid short circuits.
- Locate the battery charge level unit—typically mounted on or near the battery tray or inner wing in the engine bay.
- Release the electrical connector and any retaining clips or bolts, then remove the old unit.
- Fit the replacement unit in the correct orientation, secure fasteners and reconnect the electrical connector.
- Reconnect the battery and perform system initialization if required.
Note: After installation the vehicle’s battery management may require initialization or coding with PSA diagnostic tools (DiagBox / Lexia / PP2000) to ensure correct communication and calibration. If uncertain, have coding and final checks performed by a qualified technician with proper diagnostic equipment.
Installation Recommendations
- Always disconnect the battery before removal or installation to protect vehicle electronics.
- Check connectors and wiring for corrosion or damage while replacing the unit; poor connections are a common cause of faults.
- Use appropriate torque for mounting fasteners and avoid over-tightening plastic components.
- Perform a full system check with a diagnostic scanner to confirm correct readings and to clear any related fault codes.
Why The Part Fails Most Often
- Environmental Exposure: Moisture ingress and corrosion on connectors reduce signal quality and can cause failure.
- Electrical Stress: Voltage spikes or poor charging system regulation can damage internal electronics.
- Thermal Stress: Heat cycles in the engine bay accelerate wear of internal components.
- Connector And Wiring Damage: Mechanical wear or rodent damage to wiring can interrupt signals between the sensor and control modules.
- Age And Drift: Over time sensor calibration can drift, giving inaccurate state-of-charge readings that affect charging strategy.
Search Tips
Mechanics and DIYers often search by OEM part numbers—use the listed product codes (9676592280, 9802043580, 6500KV, 6500KR) together with model names (Citroën C4, C4 Picasso; Peugeot 3008, 308, 5008) to find the correct unit quickly.
