Product Description
Reliable 16V Low Voltage Lithium Battery Replacement for Tesla Model S & Model Y
Upgrade or replace your Tesla’s low voltage power system with this high-quality 16V Li-Ion Auxiliary Battery, designed for select Tesla Model S and Tesla Model Y vehicles. Engineered to match OEM specifications, this lithium-ion battery provides stable low-voltage power delivery for essential vehicle electronics, startup systems, onboard modules, lighting, and intelligent control units.
Compatible with OEM part numbers 1598486-00-C and 1598486-00-D, this replacement battery is manufactured for dependable performance, long service life, and direct-fit installation.
Unlike traditional 12V lead-acid batteries found in older vehicles, Tesla’s advanced 16V lithium low-voltage system offers improved efficiency, reduced weight, and enhanced energy management for modern EV platforms.
Key Features
- Direct replacement for Tesla OEM low voltage battery
- Compatible with Tesla Model S and Model Y
- Stable 16V lithium-ion output with 300A capability
- Lightweight and compact battery design
- Supports vehicle electronic systems and control modules
- Durable construction for daily driving conditions
- Designed for repair, replacement, or maintenance applications
- Factory-style fitment for easier installation
- OEM-style connector configuration
- High resistance to vibration and temperature fluctuation
- Stable voltage output for sensitive Tesla electronics
Compatible Vehicles
| Tesla Model | Compatible Years | Configuration |
|---|---|---|
| Tesla Model S | 2016–2021 | First Generation Revised |
| Tesla Model S | 2021+ | Generation Change Models |
| Tesla Model Y | 2020–2024 | AWD Long Range |
| Tesla Model Y | 2020–2024 | AWD Performance |
| Tesla Model Y | 2020–2024 | RWD Long Range |
OEM Part Numbers
| OEM Number | Description |
|---|---|
| 1598486-00-C | Tesla 16V Low Voltage Li-Ion Battery |
| 1598486-00-D | Updated Revision Tesla Auxiliary Battery |
Note: The “-D” suffix is generally considered a newer revision version replacing earlier “-C” production batches in some applications. Please verify your original part number before ordering.
Product Specifications
| Specification | Details |
|---|---|
| Product Type | 16V Low Voltage Lithium Battery |
| Battery Type | Li-Ion Auxiliary Battery |
| Voltage | 16V |
| Current Rating | 300A |
| Condition | New |
| Installation Type | Direct Replacement |
| Material | Lithium-Ion Battery Pack |
| Warranty | 1 Year |
| Package Size | 45 × 20 × 13 cm |
| Gross Weight | Approx. 2.0 kg |
| Application | Tesla Repair & Replacement Parts |
| Place of Origin | Guangdong, China |
| Brand | Chipin Source |
| Packing | Customized Protective Packaging |
Functions of the Tesla Low Voltage Battery
The low-voltage lithium battery in Tesla vehicles is responsible for powering and stabilizing multiple vehicle systems, including:
- Vehicle startup systems
- Touchscreen and infotainment operation
- Door handles and locking systems
- Interior and exterior lighting
- Bluetooth and connectivity modules
- ECU and electronic control modules
- Climate control initialization
- Safety monitoring systems
- Window and seat electronic functions
- Charging communication systems
A weak or aging low-voltage battery may cause warning messages, delayed startup response, unstable electronic behavior, or communication interruptions between vehicle modules.
Installation Notes
⚠️ Important: Installation of Tesla low-voltage batteries should be performed carefully to avoid electrical system interruptions or fault messages. Professional installation is recommended for users unfamiliar with Tesla electrical systems.
Basic Installation Steps
- Power down the vehicle according to Tesla service procedures.
- Access the low-voltage battery compartment.
- Disconnect the negative terminal first, followed by the positive terminal.
- Remove the original low-voltage battery carefully.
- Install the replacement 16V lithium battery in the correct orientation.
- Reconnect the positive terminal first, then the negative terminal.
- Secure all connectors and mounting hardware properly.
- Restart the vehicle and verify normal system operation.
Installation Tips
- Always confirm OEM part number compatibility before installation.
- Avoid short-circuiting battery terminals during replacement.
- Ensure connectors are fully seated and secure.
- Some vehicles may require system reset or recalibration after battery replacement.
- If warning messages remain after installation, diagnostic scanning may be required.
Recommended Applications
This 16V low-voltage battery is commonly used for:
- Preventive maintenance replacement
- Repairing low-voltage battery warnings
- Restoring unstable electronic system behavior
- Tesla collision repair servicing
- Replacing aging original auxiliary batteries
- Tesla electronic system diagnostics and repair
Package Includes
- 1 × 16V Low Voltage Li-Ion Battery
- Protective Transportation Packaging
