PowerTex 2018 BMW 440i xDrive Gran Coupe Car Battery BCI Group 49 / H8 Replacement Lithium LiFePO4 Automotive Battery
Concerned About The Safety of Powertex LiFePO4 Car Batteries?
After undergoing rigorous testing, we've engineered the most efficient and secure battery solution. Our LiFePO4 battery utilizes cells that have undergone puncture testing to prevent potential fire and explosion hazards. With crush-resistant technology, it's built to withstand intense pressure, collisions, and maintain structural integrity, ensuring your safety in any situation. Additionally, boasting IP65 and IP67 waterproof ratings, it offers unparalleled protection against water damage. Certified with UN38.3, MSDS, 62133, 62619, and CE, our battery is a testament to its reliability and safety standards, providing you with peace of mind on every journey.
Unveiling the Key Attributes
Maximized Longevity: Elevate your driving experience with the Powertex Lithium Iron Phosphate car battery, an optimal solution for maximizing your vehicle's potential. Crafted for extended durability surpassing conventional car batteries, this powerhouse delivers enhanced power and prolonged longevity. With LiFePO4, revel in sustained performance and unwavering reliability that elevates your journey every mile of the way.
Optimized Performance: Elevate your driving experience with the Powertex Lithium car battery, meticulously crafted for enhanced performance and dependability. This battery offers increased power and an extended lifespan, making it the ideal selection for those aiming to optimize their vehicle's capabilities. Choose Lithium Iron Phosphate for improved and consistently reliable performance.
Jump Start Button: Never worry about external jump starting again! Our battery features an internal jump start button, activated in the event of battery discharge or BMS triggering, ensuring hassle-free operations wherever you go.
Battery Management System: Experience peace of mind with our cutting-edge Battery Management System (BMS), acting as a vigilant protector against overcharge, over-discharge, and short-circuit incidents. This intelligent system tirelessly monitors and controls battery performance, ensuring both your safety and the durability of your investment.
Grade A Cells: Trust in the highest quality and reliability with UL-certified Grade A cells, delivering unmatched performance and peace of mind.
Specifications
| Model |
PTLG49 |
| Dimensions (L×W×H) |
14.0 × 6.9 × 7.4 inches |
| Terminal |
Standard (STD) |
| Weight |
19.8 lbs |
| Voltage |
12.8V |
| Capacity |
60 Amp Hours |
| Power |
768 Watt Hours |
| Cranking Amps (CA) |
1500 CA |
| Cold Cranking Amps (CCA) |
1000 CCA |
| Charging Voltage |
14.2V ~ 14.6V |
| Charging Current |
30A ~ 150A |
| Internal Resistance |
< 30mΩ |
What Our Experts Think
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Superior Power & Efficiency: The PowerTex Lithium LiFePO4 battery is specifically designed to deliver outstanding power and efficiency for the 2018 BMW 440i xDrive Gran Coupe, enhancing overall vehicle performance.
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Lightweight & Space-Saving: Significantly lighter than traditional lead-acid batteries, it improves fuel efficiency and handling while reducing vehicle weight.
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Longer Battery Life: Lasts 3-4X longer than standard batteries, minimizing replacement costs and offering more reliability over time.
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Reliable Starting Power: High cold cranking amps (CCA) ensure dependable starts even in freezing weather, providing peace of mind year-round.
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Smart Protection: Features an integrated Battery Management System (BMS) to prevent overcharging, overheating, and short circuits, ensuring maximum safety.
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Eco-Friendly: Free from toxic lead and acid, providing a greener and more sustainable battery alternative.
Q&A
Q: Is the PowerTex Lithium Battery a direct replacement for my 2018 BMW 440i xDrive Gran Coupe?
A: Yes, it directly replaces BCI Group 49 / H8 batteries, offering superior performance and extended lifespan.
Q: What are the benefits of a LiFePO4 battery over traditional lead-acid?
A: LiFePO4 batteries are lighter, charge faster, last 3–5 times longer, and provide more consistent power with better safety features.
Q: Does this battery require special installation?
A: No, it installs just like a standard battery with no special tools or maintenance required.
Q: Is this battery compatible with the BMW 440i xDrive Gran Coupe’s electrical system?
A: Yes, it’s fully compatible with the 2018 BMW 440i xDrive Gran Coupe, including the start-stop system.
Q: How does this battery affect vehicle performance?
A: The lightweight design reduces overall vehicle weight, enhancing acceleration, fuel efficiency, and handling.
Q: Can this battery perform well in extreme weather conditions?
A: Yes, it operates reliably in both hot and cold temperatures, ensuring consistent power year-round.
Maintenance Tips
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Use a Lithium-Compatible Charger – Always charge with a LiFePO4-specific charger. Avoid using lead-acid chargers as they may overcharge the battery and damage the internal cells, reducing battery life.
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Maintain Charge Levels Between 20%–100% – To maximize battery life, keep the charge between 20% and 100%. Avoid letting the battery drop below 10V to prevent permanent damage.
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Optimal Temperature Range – LiFePO4 batteries perform best in temperatures between -4°F and 140°F. Always ensure the battery temperature stays above 32°F when charging for safe operation.
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Secure Installation – Make sure the battery is properly mounted and secured to prevent vibrations, which can damage internal components and shorten the battery's lifespan.
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Regular Terminal Inspections – Periodically check the battery terminals for corrosion or loose connections. Use dielectric grease to prevent oxidation and ensure a solid electrical connection.
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Proper Storage Practices – When storing the battery for long periods, maintain it at 50-80% charge and store in a cool, dry location. Disconnect the battery to prevent parasitic drain.
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Avoid Jump-Starting with Lead-Acid Batteries – Never jump-start the vehicle with a traditional lead-acid battery, as it can cause harmful voltage spikes that damage the Battery Management System (BMS). Use the proper jump-starting equipment.
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Monitor the Battery Management System (BMS) – The BMS protects the battery from overcharging, deep discharges, and overheating. If the BMS shuts down, let it reset before recharging.
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Limit Deep Discharges – While LiFePO4 batteries handle deep discharges better than lead-acid, avoid draining the battery below 20% frequently to prolong its lifespan.
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Follow Manufacturer Recommendations – Adhere to PowerTex's guidelines for maintenance, charging, and care to ensure your LiFePO4 battery stays in optimal condition, delivering reliable performance.
