PowerTex 2017 Mercedes-Benz AMG GT Car Battery BCI Group 47 H5 Lithium LiFePO4 Replacement Automotive Battery - PTLG47-421

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.

Discover the unparalleled performance of our Powertex LiFePO4 Car Battery with transparent and comprehensive insights into key parameters:

Capacity: Unmatched energy storage capacity to fuel extended journeys and power-hungry applications.

Cycle Life: Exceptional longevity, ensuring a prolonged and reliable service life for your investment.

Charging Time: Swift and efficient charging capabilities, minimizing downtime and maximizing your driving experience.

At Powertex, we prioritize clarity and excellence, empowering customers with the information they need to make informed decisions and elevate their driving experience.

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.

What our Experts Think

• Ultra‑long life & dependability — LiFePO₄ technology outlasts conventional lead‑acid starters by 2–5× or more, dramatically reducing how often you replace the battery over the life of the vehicle.

• Major weight savings — Roughly one‑third the weight of traditional batteries means less under‑hood mass and better responsiveness and efficiency in performance cars.

• Integrated smart BMS — Advanced Battery Management System actively protects against overcharge, deep discharge, and short circuits for safer, reliable starts every time.

• Built‑in jump‑start convenience — Internal jump‑start feature lets you restart the AMG GT easily even if the battery drains — no external cables needed.

• Bluetooth real‑time monitoring — App connectivity lets you track voltage and health in real time for proactive maintenance.

• Maintenance‑free & eco‑friendlier — No fluid top‑ups or corrosion issues, and free of lead or acid — virtually no upkeep and a cleaner environmental footprint.

• Fitment & installation note — This is an aftermarket PowerTex unit, not OEM — verify fit and professional installation or battery registration with your vehicle’s systems for optimal performance.

Q&A

Q: What type of battery is this?
A: A 12.8 V Lithium Iron Phosphate (LiFePO₄) automotive replacement battery in BCI Group 47 / H5 size — a lightweight, high‑performance upgrade for vehicles like the 2017 Mercedes‑Benz AMG GT and other models that use this battery group. Group 47 (also known as H5) is a standard passenger car battery size.

Q: How does LiFePO₄ technology compare to traditional lead‑acid batteries?
A: LiFePO₄ batteries are much lighter (≈9.3 lb / ~4.2 kg) and offer a longer service life (often 2–5×) than conventional lead‑acid batteries. They deliver stable voltage and strong starting power with improved efficiency.

Q: What are the key specs?
A: Typical specs include ~50 Ah lead‑equivalent capacity, ~900 CA (cranking amps), ~600 CCA (cold cranking amps), 12.8 V output, and compact dimensions ~9.6″ × 6.9″ × 7.4″ — all in a lightweight LiFePO₄ build.

Q: What advanced features does it include?
A: Features like a built‑in Battery Management System (BMS) protect against overcharge, over‑discharge, and shorts; internal jump‑start capability means you don’t need external jumper cables; and Bluetooth monitoring lets you view real‑time battery data via smartphone.

Q: Is this battery durable and safe?
A: Yes — PowerTex LiFePO₄ batteries are engineered for reliability with advanced safety protections, waterproof resistance, and certifications backing structural integrity and performance longevity.

Q: Will this battery fit my AMG GT?
A: Yes — if your 2017 Mercedes‑Benz AMG GT requires a BCI Group 47 / H5 battery specification, this LiFePO₄ model is a direct compatible replacement in the same size and voltage profile. Always verify exact fitment and terminals before installation.

Maintenance Tips