Porsche, Audi LiFePO4 12V Lithium Battery BMS Repair + Charging Service

## Porsche • Lamborghini • Audi LiFePO4 Lithium Ion 12V Battery Repair + Charging & Balancing Service Professional **LiFePO4 12V Lithium Ion Battery** repair & reset service for Porsche, Lamborghini, Audi, and Bentley. Keep your original OEM battery and save hundreds compared to costly replacement. ## Same-Day Service • Free U.S. Return Shipping Ship us your complete **12V Lithium Battery**. We will repair, reset crash data, recharge, and balance the cells. Your battery is returned **within 24 hours**. **Free return shipping** is included (inbound shipping is the buyer’s responsibility). ## How Our Service Works 1. 2. Carefully remove and ship your **complete 12V LiFePO4 battery** to us. 3. We reset crash data, repair the BMS, recharge and balance cells, and thoroughly bench-test. 4. Within **1 business day**, we ship your restored battery back. 5. Reinstall — your car will recognize it immediately. **No coding or programming required.** ## Symptoms We Fix - Vehicle won’t start / intermittent no-start after parking. - “Electrical system error” / “12V battery fault” messages on the dashboard. - Battery appears completely dead after storage or jump-start attempts. - Crash data stored in the battery (post-accident) preventing start. - DTCs related to 12V LiFePO4/BMS or energy management module. - Low-voltage lockout: BMS shut down after deep discharge. - Unbalanced cells, rapid voltage drop under load. ## Supported Vehicles Porsche Cayenne (2019–2024, 9YA/9YB)Porsche 911 (992, 2020–2024)Porsche Taycan (2020–2024)Porsche Macan (Hybrid models, 2022–2024)Lamborghini Urus (2019–2024)Audi Q8 / SQ8 / RSQ8 (2019–2024)Bentley Bentayga (2019–2024)Other VAG group models with 9Y0-series LiFePO4 batteries ## Compatible Part Numbers Part NumberPart NumberPart Number9Y0-915-1059Y0-915-105-LY9Y0-915-105-P9Y0-915-105-0Y9Y0-915-105-M9Y0-915-105-Q9Y0-915-105-CY9Y0-915-105-NY9Y0-915-105-R9Y0-915-105-GY9Y0-915-105-J9Y0-915-105-K9Y0-915-105-JY9Y0-915-105-L ## Common Fault **DTC P1D6C00 – 12V Lithium Battery Diagnostic System Monitoring Fault** This diagnostic trouble code typically appears after a **critical battery discharge**. When the 12V LiFePO4 battery voltage drops too low, the **BMS (Battery Management System)** enters protection mode and isolates the pack from the vehicle’s power network. Our service safely clears this protection state and restores full BMS functionality. ### Technical Explanation During deep discharge (below approximately 9 V), the internal microcontroller disables all output FETs and sets a protection bit to prevent overcurrent or reverse charging. Once locked, standard external chargers cannot wake the BMS. Our reset process removes this locked state, refreshes EEPROM data, and reestablishes communication between the control board and battery cells. After service, the pack should be precharged to around **13.6 V** before reinstallation to ensure proper synchronization. ## Important Notes - **This is a repair/reset service only** – no new battery is sold. - **You must send us your complete battery** for service. - Not covered: physical damage (burned PCB, broken connectors, water/fire damage). - All batteries are **bench-tested** before shipping back. ## Why Choose Our Service? - Save hundreds compared to new OEM battery replacement. - Crash Data Reset + Cell Charging & Balancing included. - Fast **24-hour turnaround**. - 100% Money-Back Guarantee. - BBB A+ Accredited • ASE Certified • Dealer Certified. - Free U.S. Return Shipping. We return your repaired battery **within 1 business day** of receiving it. Mail-in BMS board repair; wake-up/unlock protection after deep discharge; low-voltage recovery service; pack “sleep/transport mode” exit; no coding required; plug-and-play reinstall; SOC recalibration; BMU reinitialization; cell-balancer check; current-shunt calibration; AFE reset; MOSFET gate-driver test; EEPROM reflash/firmware restore; CAN-bus handshake sync; bench charging available; auxiliary 12V starter battery reactivation; packaging tips: antistatic bag, bubble wrap, rigid box; include label photo and VIN for validation. Servicio de reparación de placa BMS por correo; desbloqueo de protección tras descarga profunda; recuperación de bajo voltaje; modo “reposo/transporte” del módulo; reinstalación plug-and-play sin codificación; recalibración de SOC; reinicio del BMU; comprobación del balanceador de celdas; calibración de shunt de corriente; reinicio del AFE; prueba de controlador MOSFET; reflasheo de EEPROM/firmware; sincronización de CAN-bus; carga de banco de prueba disponible; reactivación de batería auxiliar de 12 V; embalaje antistático: bolsa + burbujas + caja rígida; incluir foto de etiqueta y VIN para verificación.

• Nominal Voltage: 12v
• Manufacturer Part Number: 9Y0 915 105 M, 9Y0 915 105 0Y, 9Y0 915 105 CY, 9Y0 915 105 GY, 9Y0 915 105 JY, 9Y0 915 105 NY, 9Y0 915 105, 9Y0 915 105 K, 9Y0 915 105 P, 9Y0 915 105 Q, 9Y0 915 105 R, 9Y0 915 105 LY, 9Y0 915 105 L, 9Y0 915 105 J, 9Y0-915-105, 9Y0-915-105-GY, 9Y0-915-105-0Y, 9Y0-915-105-CY, 9Y0-915-105-J, 9Y0-915-105-JY, 9Y0-915-105-K, 9Y0-915-105-L, 9Y0-915-105-LY, 9Y0-915-105-M, 9Y0-915-105-NY, 9Y0-915-105-P, 9Y0-915-105-Q, 9Y0-915-105-R
• Brand: Porsche
• Type: Lithium Ion Battery
• DTC: P1D6C00
• Capacity: 0 Ah - 100 Ah
• Manufacturer Warranty: 1 Year
• OE/OEM Part Number: 9Y0915105, 9Y09151050Y, 9Y0915105CY, 9Y0915105GY, 9Y0915105J, 9Y0915105K, 9Y0915105L, 9Y0915105LY, 9Y0915105M, 9Y0915105NY, 9Y0915105P, 9Y0915105Q, 9Y0915105R, 9Y0915105JY
• Porsche: Cayenne
• Features: CAN bus Communication, Integrated Circuit (IC), Low Self-Discharge, Overcharge Protection, System Diagnostics, Repair Service
• Universal Fitment: No
• Country of Origin: United States
• Item Weight: 250 g
• Performance Part: No