JWM PS-019 LiFePO4 Replacement Battery – McLaren 12C / 650S / 675LT
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JWM PS-019 LiFePO4 Battery – McLaren 12C / 650S / 675LT
JWM PS-019 LiFePO4 lightweight battery, direct replacement for McLaren Gen1 lithium systems and 019-size batteries. Delivers up to 2100CCA, major weight reduction, and improved reliability with optional Restart Technology.
Full Product Description
The JWM PS-019 LiFePO4 Battery is a high-performance, lightweight replacement designed specifically for McLaren 12C, 650S and 675LT models using the factory Gen1 lithium battery system.
Engineered as a direct-fit upgrade, the PS-019 replaces both early McLaren lithium batteries and conventional 019 lead-acid units, offering a substantial improvement in performance, weight, and reliability.
Utilising advanced LiFePO4 (Lithium Iron Phosphate) technology, the PS-019 delivers exceptional cranking performance (up to 2100CCA), rapid recharge capability, and significantly extended service life compared to traditional batteries.
Weighing approximately 12kg compared to ~26.5kg for a conventional battery, it provides an approximate 12kg weight saving, contributing to improved vehicle dynamics and overall efficiency.
For vehicles that are not used regularly, the optional Restart Technology integrates a secondary reserve battery. If the main battery becomes discharged, the system can be reset via the top-mounted button to restart the vehicle instantly — eliminating the need for external jump starting.
Key Features
- Direct replacement for McLaren Gen1 lithium battery systems
- Fits standard 019 battery size applications
- Advanced LiFePO4 lithium technology
- Up to 2100CCA cold cranking power
- Approx. 12kg weight saving vs lead-acid battery
- Optional Restart Technology (integrated backup start system)
- Rapid recharge capability
- Extremely low self-discharge (retains charge up to 2 years when isolated)
- Long service life with high cycle durability
- Fully sealed, non-liquid design (multi-position mounting)
- Integrated battery management system (BMS protection)
- UK Motorsport (MSA) registered
Specifications
General
- Model: JWM PS-019
- Technology: Lithium Iron Phosphate (LiFePO4)
- Battery Type: 019 Direct Replacement
- Nominal Voltage: 14.4V
Electrical Performance
- Main Battery Capacity: 90Ah (Lithium)
- PowerPlus Capacity: 110Ah (Optional)
- Cold Cranking Amps: 2100CCA
- Reserve Battery Capacity: 10Ah (Lithium)
- Reserve Battery CCA: 500CCA
Physical Dimensions
- Size (L x W x H): 354 x 176 x 187 mm
Weight
- Standard 90Ah: 12.0kg
- PowerPlus 110Ah: 12.2kg
- Restart 90Ah: 12.7kg
- Restart PowerPlus 110Ah: 12.9kg
- Equivalent Lead Acid Battery: ~26.5kg
Compatible Vehicles
McLaren Super Series (Gen1 Lithium Systems)
- McLaren MP4-12C Coupe
- McLaren MP4-12C Spider
- McLaren 650S Coupe
- McLaren 650S Spider
- McLaren 675LT Coupe
- McLaren 675LT Spider
Why Choose JWM LiFePO4?
JWM batteries combine motorsport-grade engineering with real-world usability, delivering superior cranking power, reduced weight, and exceptional durability.
Compared to conventional batteries, LiFePO4 technology offers:
- Faster recharge times
- Significantly longer lifespan
- Stable voltage delivery
- Improved resistance to deep cycling
For McLaren owners, this translates to greater reliability, reduced weight, and improved usability, particularly for vehicles that are driven less frequently.
Important Notes
- Designed for McLaren Gen1 lithium battery systems
- Restart Technology recommended for low-use vehicles
- Avoid full discharge due to parasitic drain
- Battery conditioner recommended for stored vehicles
- Professional installation recommended
We offer professional installation services directly in the Rennworks workshop, where your product will be expertly fitted and fully set up for optimal performance. To book an installation appointment, simply contact us and we’ll be happy to arrange a time that suits you.
Not sure if this product is the right fit for your vehicle? We’re here to help. Our team can quickly check compatibility and make sure you’re choosing the correct item before you buy. Just reach out with your vehicle details, and we’ll confirm everything for you.
Some product images are for illustrative purposes only and may show a generic or representative version of the item. Actual components may vary slightly depending on vehicle application or specification, but all products supplied will match the description and meet our quality standards.
Most orders are processed within 1–2 business days and usually ship within 3–7 business days. Not all items are held in stock, as some products are bespoke and made to order — for example, certain coilover suspension kits and exhaust systems — and delivery times may be longer in these cases. Where this applies, we’ll keep you fully informed and confirm expected dispatch dates as soon as possible. If you’d like to check availability or lead times, feel free to contact us before making a purchase.