SKU: 81050938701

Braille i48CX Intensity Carbon Group 48 (Std Height) Lithium Battery

Sale price$562.50 Regular price$625.00
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Description

Braille i48CX Intensity Carbon Group 48 (Std Height) Lithium Battery* i48CX batteries are currently on backorder, please send us an e mail if you wish to receive notification, as and when these next become available. Braille's i48CX model is a standard height lithium upgrade for vehicles that are equipped with a Group 48 battery. This model has been used in hundreds of Porsche cars ranging from Cayman GT4 to air cooled 911 models all the way up to GT3RS and GT3 Cup cars Also successfully used by BMW, Audi, C7 and C8

* i48CX batteries are currently on backorder, please send us an e-mail if you wish to receive notification, as and when these next become available.

Braille's i48CX model is a standard height lithium upgrade for vehicles that are equipped with a Group 48 battery. This model has been used in hundreds of Porsche cars ranging from Cayman GT4 to air-cooled 911 models all the way up to GT3RS and GT3 Cup cars

Also successfully used by BMW, Audi, C7 and C8 Corvettes and other sports cars and exotics for over a decade. Direct replacement for Audi RS3 & TTRS; VW Golf 7/8 GTI, CS & R; Cupra Leon; Porsche Cayman 987 GT4 & Spyder, 997 GT3 & GT3RS, GT3 Cup, 997 GT2RS, 981/718 Spyder, GT4 & GT4 Clubsport, 991 GT3 & GT3RS, 911R; Toyota Yaris GR.

At only 10 pounds, it offers more cranking power than the OE Porsche lithium battery and is a true 'race grade' product compared to the majority of 'consumer grade' (lesser) products on the market.

There is a reason that Braille lithium batteries have an annual failure rate of less than 1/2 of 1% in road and factory race cars and those are almost always linked to abuse, improper maintenance or other factor that could damage any battery!

Braille lithium race batteries are used by more professional race teams, car builders and race series globally, than any other lithium battery on the market!!

  • Braille i48CX - the ultra-lightweight Group 48 size lithium upgrade
  • Max weight Savings!! (Only 10 pounds vs 45-60 in a lead battery)
  • 100% compatible with ALL standard charging systems
  • Can be used in total loss (no alternator) applications
  • True 'Race Grade' lithium battery Made in USA (Sarasota, Florida)
  • Most reliable lithium battery on the market
  • Braille Lithium delivers a higher, cleaner voltage which improves the performance of every electrical component and has shown to provide: quicker starting, improved management & data logging performance, less horsepower draw from the alternator due to efficient charging (5 times faster than lead), will last 3-5 times longer (especially under the harshest environments), much more reliable, all of this on top of the significant weight savings.

    They also don’t self-discharge, so if the battery is disconnected (no draw or via power disconnect switch), they can sit for over a year and still have over 13 volts to start the vehicle. To get all these benefits in one simple step makes it a very cost effective upgrade!!

       Physical Specs

    BCI Group 48 Width 6.8" / 173mm
    Weight 10.5lbs / 4.8kg Height 7.7" / 195mm
    Length 11" / 279mm Polarity Right Side Positive

    Performance Specs

    Voltage 12 Full Voltage Charge
    Pulse Cranking Amps (PCA) 1520 Amp hour (Ah) 22.5
    Lithium Amp hour/Lead-Acid Equivalent 70 Life Cycle @ 10% DOD 5000
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 81050938701

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    4.8 ★★★★★
    Based on 15 reviews
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    L
    Leon
    Bozeman, US
    ★★★★★ 5
    Great upgrade for a rental apartment mattress
    The mattress in my rental place is firm to the point where it almost feels unfinished. Instead of replacing it, I decided to try adding this topper. It made an immediate difference in the way the bed feels when I sit or lie down. There’s a nice cushioned layer that softens that “flat” feeling but still holds its shape. Another thing I noticed is how breathable it is. I expected thick padding to feel warm, but the airflow here feels better than the original mattress surface. Even after moving around, it never felt heavy or stuffy.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on November 22, 2025
    A
    Alexa Young
    Massapequa, US
    ★★★★★ 5
    Soft and Comfortable Topper
    I got this bamboo mattress topper for a small single bed we keep in our guest room, but I ended up testing it out myself first. The material feels soft and breathable, which is nice because that room can get a little warm in the afternoons. It adds a good amount of cushioning without making the bed too soft. After a couple of nights, my back actually felt better compared to the old mattress alone. I also appreciate that it’s machine washable, because our guest room sometimes doubles as a nap spot for my son after swim class, and spills happen. It dried pretty quickly in the dryer and kept its shape. Overall, it made the bed feel much more comfortable and fresh.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on November 24, 2025
    T
    TED
    Lexington, US
    ★★★★★ 5
    Added comfort for someone working night shifts
    I work odd hours, so my sleep schedule is all over the place. My mattress has always felt a bit too stiff after long shifts, so I got this topper hoping it would help me relax faster. It really changed the overall feel of the bed. The padding has a cushioned lift that makes lying down feel smoother, especially around the shoulders and lower back. Instead of feeling like I’m dropping onto a firm surface, there’s a soft layer that evens out the pressure. What surprised me most is how light the surface feels. Even after staying in one position, it never gets stuffy or heavy. The airflow makes a difference when your body is trying to wind down after work. The fitted pocket also stays tight around the mattress, so nothing shifts when I move. I can stretch out without worrying about the topper sliding off.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on November 24, 2025
    K
    Kyle
    Belleville, US
    ★★★★★ 5
    Good option for softening a college apartment bed
    I moved into a college apartment where the bed felt like it belonged in a dorm from years ago—flat and stiff. Instead of dealing with it, I tried this topper, and it added a cushiony layer right away. The surface feels much more forgiving when I fall onto the bed after studying or hanging out with friends. It has just enough padding to take away that board-like feeling without making the bed sag. Another thing I noticed is how breathable it is. I expected something this thick to feel warm, but it actually stays cool even if I stay on one side for a long stretch.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on November 19, 2025
    L
    Luna
    Carnegie, US
    ★★★★★ 5
    Makes an older family mattress feel brand new
    There’s an older mattress in my place that everyone avoids because it feels too worn in the middle. Instead of replacing it, I decided to give this topper a shot. Once it settled on the bed, it added a thick cushioned layer that helped level out the whole surface. Lying down feels smoother, and the middle no longer dips the way it used to. The fabric feels cool when you touch it, and it keeps that same feel even after staying on it for a while. I thought a thick topper might hold warmth, but this one keeps the air moving enough that the bed stays comfortable throughout the night.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on November 25, 2025

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