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Sales & Specials
Sales & Specials

Intensity Carbon Lithium-ION Battery - i48CX - 10.5lbs

Replace your stock, heavy battery with a direct replacement, lightweight performance Lithium battery that weighs in at only 10.5lbs!
Upgrade for a standard Group 48 size battery.
Mfg Part #
I48CX
ECS Part #
ES#3617648
Brand
Braille
1649.99
Direct Ship
Qty
Does this fit my vehicle?

Product Details

Upgrade for a standard Group 48 size battery.

Whether you are looking to replace your battery to reduce weight for track purposes or just want to upgrade to a lithium battery for it's long life and exceptional reliability, Braille Battery has you cover with their Intensity Carbon line of Lithium-ION batteries. Designed to the same stock specifications in terms of size, for easy installation and proper fitment, these batteries are significantly light that stock batteries by a ridiculous amount! The i48CX battery weighs in at only 10lbs! This is a 35 pound reduction in weight, while still producing a whopping 1520 Pulse Cranking Amps (PCA) and offering a 75 Lithium Amp Hour/Lead-Acid Equivalent capacity. This makes the i48CX another leader in the battery industry for performance to weight ratio by a significant margin!

Some may ask, "Why should I upgrade to a Lithium battery?"

Braille Lithium delivers a higher, cleaner voltage which improves the performance of every electrical component and has shown to provide:

  • Quicker starting (a full volt higher than lead and less voltage drop during cranking)
  • Improved engine management & data logging performance (more stable voltage)
  • Less horsepower draw from the alternator due to efficient charging (5 times faster than lead),
  • Lasts 3-5 times longer (especially under the harshest environments),
  • Much more reliable (less than 1% failure rate)
  • Significant weight savings. (up to 1/4 the weight)
  • 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 Specifications:

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

Performance Specifications:

  • Voltage:  12
  • Full Charge Voltage:  13.8
  • Pulse Cranking Amps (PCA):  1520
  • Amp Hour (AH):  25
  • Lithium Amp Hour/Lead-Acid Equivalent (LAH/PbEq):  75
  • Life Cycle @ 10% DOD:  5000

** PbEq equals Lead-Acid Equivalent also known as LAH Lithium-Amp-Hours. This means that a 72 LAH PbEq (24AH) Lithium Iron Phosphate battery could perform the same near as a 72 AH Lead-acid battery under a high rate discharge in comparison.

When installing a lithium battery in a BMW that requires the battery to be coded in, Braille recommends setting the battery code to the lowest/smallest AGM battery setting possible.

Before purchasing a battery, please double check the size of your stock battery and the battery compartment. Many BMW's can use both a Group 48 or Group 49 size, but some vehicles are limited to Group 48 only due to constraints in the battery's total length.

This Part Fits the Following Vehicles

Make Model Submodel Engine
BMW E46 323Ci M52 2.5L
BMW E46 323i M52 2.5L
BMW E46 325Ci M54 2.5L
BMW E46 325i M54 2.5L
BMW E46 325xi M54 2.5L
BMW E46 328Ci M52 2.8L
BMW E46 328i M52 2.8L
BMW E46 330Ci M54 3.0L
BMW E46 330i M54 3.0L
BMW E46 330xi M54 3.0L
BMW E46 M3 S54 3.2L
BMW E70 X5 M57 3.0L
BMW E70 X5 N52 3.0L
BMW E70 X5 N55 3.0L
BMW E70 X5 N62 4.8L
BMW E70 X5 S63 4.4L
BMW E70 X5 M S63 4.4L
BMW E70 X5 xDrive30i N52 3.0L
BMW E70 X5 xDrive35d M57 3.0L
BMW E70 X5 xDrive35i N55 3.0L
BMW E70 X5 xDrive48i N62 4.8L
BMW E70 X5 xDrive50i N63 4.4L
BMW E71 X6 S63 4.4L
BMW E71 X6 35iX N54 3.0L
BMW E71 X6 50iX N63 4.4L
BMW E71 X6 50iX S63 4.4L
BMW E71 X6 ActiveHybrid N63 4.4L
BMW E71 X6 M S63 4.4L
BMW E71 X6 xDrive35i N54 3.0L
BMW E71 X6 xDrive35i N55 3.0L
BMW E71 X6 xDrive50i N63 4.4L
BMW E82 1 M Coupe N54 3.0L
BMW E82 128i N52 3.0L
BMW E82 135i N54 3.0L
BMW E82 135i N55 3.0L
BMW E83 X3 M54 2.5L
BMW E83 X3 M54 3.0L
BMW E83 X3 N52 3.0L
BMW E84 X1 sDrive28i N20 2.0L
BMW E84 X1 xDrive28i N20 2.0L
BMW E84 X1 xDrive35i N55 3.0L
BMW E88 128i N52 3.0L
BMW E88 135i N54 3.0L
BMW E88 135i N55 3.0L
BMW E90 325i N52 3.0L
BMW E90 325xi N52 3.0L
BMW E90 328i N52 3.0L
BMW E90 328xi N52 3.0L
BMW E90 330i N52 3.0L
BMW E90 330xi N52 3.0L
BMW E90 335d M57 3.0L
BMW E90 335i N54 3.0L
BMW E90 335i N55 3.0L
BMW E90 335xi N54 3.0L
BMW E90 335xi N55 3.0L
BMW E90 M3 S65 4.0L
BMW E91 325i N52 3.0L
BMW E91 325xi N52 3.0L
BMW E91 328i N52 3.0L
BMW E91 328xi N52 3.0L
BMW E92 328i N52 3.0L
BMW E92 328xi N52 3.0L
BMW E92 335i N54 3.0L
BMW E92 335i N55 3.0L
BMW E92 335is N54 3.0L
BMW E92 335xi N54 3.0L
BMW E92 335xi N55 3.0L
BMW E92 M3 S65 4.0L
BMW E93 328i N52 3.0L
BMW E93 335i N54 3.0L
BMW E93 335i N55 3.0L
BMW E93 335is N54 3.0L
BMW E93 M3 S65 4.0L
BMW F15 X5 sDrive35i N55 3.0L
BMW F15 X5 xDrive35d N57 3.0L
BMW F15 X5 xDrive35i N55 3.0L
BMW F15 X5 xDrive50i N63 4.4L
BMW F16 X6 sDrive35i N55 3.0L
BMW F16 X6 xDrive35i N55 3.0L
BMW F16 X6 xDrive50i N63 4.4L
BMW F22 228i N20 2.0L
BMW F22 228i xDrive N20 2.0L
BMW F22 230i B46 2.0L
BMW F22 230i xDrive B46 2.0L
BMW F22 M235i N55 3.0L
BMW F22 M235i xDrive N55 3.0L
BMW F22 M240i B58 3.0L
BMW F22 M240i xDrive B58 3.0L
BMW F23 228i N20 2.0L
BMW F23 228i xDrive N20 2.0L
BMW F23 230i B46 2.0L
BMW F23 230i xDrive B46 2.0L
BMW F23 M235i N55 3.0L
BMW F23 M235i xDrive N55 3.0L
BMW F23 M240i B58 3.0L
BMW F23 M240i xDrive B58 3.0L
BMW F25 X3 sDrive28i N20 2.0L
BMW F25 X3 xDrive28d N47 2.0L
BMW F25 X3 xDrive28i N20 2.0L
BMW F25 xDrive2.8i N52 3.0L
BMW F25 xDrive3.5i N54 3.0L
BMW F25 xDrive3.5i N55 3.0L
BMW F26 X4 xDrive28i N20 2.0L
BMW F26 X4 xDrive35i N55 3.0L
BMW F30 320i N20 2.0L
BMW F30 320i xDrive N20 2.0L
BMW F30 328d N47 2.0L
BMW F30 328d xDrive N47 2.0L
BMW F30 328i N20 2.0L
BMW F30 328i xDrive N20 2.0L
BMW F30 330e iPerformance B48 2.0L
BMW F30 330i B48 2.0L
BMW F30 330i xDrive B48 2.0L
BMW F30 335i N55 3.0L
BMW F30 335i xDrive N55 3.0L
BMW F30 340i B58 3.0L
BMW F30 340i xDrive B58 3.0L
BMW F30 ActiveHybrid 3 N55 3.0L
BMW F31 328d xDrive N47 2.0L
BMW F31 328i xDrive N20 2.0L
BMW F31 330i B48 2.0L
BMW F32 428i N20 2.0L
BMW F32 428i xDrive N20 2.0L
BMW F32 430i B46 2.0L
BMW F32 430i xDrive B46 2.0L
BMW F32 435i N55 3.0L
BMW F32 435i xDrive N55 3.0L
BMW F32 440i B58 3.0L
BMW F32 440i xDrive B58 3.0L
BMW F33 428i N20 2.0L
BMW F33 428i xDrive N20 2.0L
BMW F33 430i B46 2.0L
BMW F33 430i xDrive B46 2.0L
BMW F33 435i N55 3.0L
BMW F33 435i xDrive N55 3.0L
BMW F33 440i B58 3.0L
BMW F33 440i xDrive B58 3.0L
BMW F34 328i xDrive N20 2.0L
BMW F34 335i xDrive N55 3.0L
BMW F34 340i xDrive B58 3.0L
BMW F36 428i N20 2.0L
BMW F36 428i xDrive N20 2.0L
BMW F36 430i B46 2.0L
BMW F36 430i xDrive B46 2.0L
BMW F36 435i N55 3.0L
BMW F36 435i xDrive N55 3.0L
BMW F36 440i B58 3.0L
BMW F36 440i xDrive B58 3.0L
BMW F48 X1 sDrive28i B46 2.0L
BMW F48 X1 xDrive28i B46 2.0L
BMW F80 M3 S55 3.0L
BMW F82 M4 S55 3.0L
BMW F83 M4 S55 3.0L
BMW G01 X3 M40i B58 3.0L
BMW G01 X3 sDrive30i B46 2.0L
BMW G01 X3 xDrive30i B46 2.0L
BMW Z3 1.9 M44 1.9L
BMW Z3 2.3 M52 2.5L
BMW Z3 2.5 M52 2.5L
BMW Z3 2.5i M54 2.5L
BMW Z3 2.8 M52 2.8L
BMW Z3 3.0i M54 3.0L
BMW Z3 M Coupe S52 3.2L
BMW Z3 M Coupe S54 3.2L
BMW Z3 M Roadster S52 3.2L
BMW Z3 M Roadster S54 3.2L
BMW Z4 2.5i M54 2.5L
BMW Z4 3.0i M54 3.0L
BMW Z4 3.0i N52 3.0L
BMW Z4 3.0Si N52 3.0L
BMW Z4 M Coupe S54 3.2L
BMW Z4 M Roadster S54 3.2L
BMW Z4 sDrive28i N20 2.0L
BMW Z4 sDrive30i N52 3.0L
BMW Z4 sDrive35i N54 3.0L
BMW Z4 sDrive35is N54 3.0L
*The above product applications have been written by ECS Tuning. All warranties, product application, fitment, and performance are the responsibility of ECS Tuning. For additional information see the terms of use.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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