At Relentless Batteries, we are changing the automotive industry thru our groundbreaking patent pending design you will not only get a more reliable, longer lasting battery but also have the option to repair the battery yourself! With a modular design, your Relentless Battery can not only run off one of four modules, but can also save you in bind with our revolutionary jump start module. Simply flip the switch to enable jump start mode or in the future use your Relentless App to jump start from the comfort of your car.
