EarthX Lithium Battery Technology

American engineering

Not all lithium batteries are equal, there are dozens of different types of chemistry used in lithium batteries. The EarthX batteries use cells made of Lithium Iron Phosphate (LiFePO4) chemistry that was developed in the U.S.A. This chemistry is the highest performance, most robust and the safest on the market today.

Lithium batteries are fundamentally different than lead-acid batteries. The lithium cells inside the battery need electronics to monitor and balance the voltage/charge of the individual cells. Other companies sell a balancing charger, which you have to plugin periodically to “top off” and balance the cells. Inside every one of the ETX-Series batteries is a microprocessor Battery Management System (BMS) that monitors the charge level of each cell and balances the charge when needed, protecting the cells from overcharge or over-discharge. What this means for you is more starting power, longer battery life, and the safest lithium battery on the market. All types of lithium batteries (not just ours) require a “BMS” that monitors and balances the cell charge and protect from over discharge or over charge.

BMS Features

Protection from Over Charge

Protection from Over Discharge*

Thermal Protection*

Short Circuit Protection

Built-in Cell Balancing

*Not included in the ETZ-Series

Why Choose an EarthX Battery? S. P. E. E. D.

  • Speedy Charging: EarthX Batteries will charge 2-3x faster than a lead acid battery. No expensive balancing charger needed
  • Powerful & Long Lasting: EarthX batteries crank your engine over easily and will improve your starting performance. The 12V series resting voltage is 13.3V compared to a lead acid which is only 12.6V. EarthX batteries also have a larger life span, up to 6 years.
  • Extremely Lightweight: EarthX batteries are up to 80% lighter than their lead acid equivalents. Lighter weight = better performance.
  • Environmentally Friendly: EarthX batteries are environmentally and user friendly. They are nonhazardous, nontoxic, and nonpoisonous. They will not sulfate, corrode, freeze, or boil over. They will never need water added and will never spill acid.
  • Discharge Rate: EarthX batteries have a much slower discharge rate than a lead acid battery, the need to charge is greatly reduced.
Why Choose an EarthX Battery? S.P.E.E.D.

Other features of EarthX batteries

  • No special mounting direction – can be used on its side or even upside down
  • All batteries are tested to industry standards (SAE, UL, CE)
  • Flexible battery connection – batteries can be used in either left or right side polarity application. Option to connect battery leads directly to the vehicle
  • EarthX uses American battery technology and the batteries are assembled, engineered, and designed in the US
  • Longer storage life – up to 4000 charge/discharge cycles (~4-6 years), over 4 times the life of a lead-acid battery
  • Wide operating temperature range (-30°C to +60°C) – lithium batteries are dry cell technology and will not freeze, boil, sulfate, or corrode

Interesting facts about lithium

  • A lithium battery can use 100% of its storage capability (measured as Amp-Hour, Ah), while a lead-acid battery typically only uses 30%
  • A lithium battery’s voltage remains relatively constant while discharging, while voltage for a lead-acid battery decreases
  • A lithium battery’s cranking power will not drop-off, and it will crank your engine longer. But when the lithium battery runs out of power it does so abruptly, just like your lithium powered hand tools
  • LiFePO4 cells by the nature of their chemistry are 3.3 volt. 12V lithium batteries, like our motorsport batteries, are created by using 4 cells in series (technically it is a 13.2 volt battery). The lithium cells (in series) in a 12V battery pack diverge in both levels of charge and capacity with each charge/discharge cycle. This condition reduces the performance of the battery (reduces capacity) and can lead to overcharging or over discharging a cell.
  • The lithium cells (in series) in a 12V battery pack diverge in both levels of charge and capacity with each charge/discharge cycle. This condition reduces the performance of the battery (reduces capacity) and can lead to overcharging or over discharging a cell. A cell is permanently damaged if over charged or over discharged just one time. In the case of overcharging, cells can rupture, and the entire battery will need to be replaced