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X2Power Relentless

Serious Batteries for Serious Enthusiasts

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X2Power Marine & RV Lithium Bluetooth Batteries

The lightest, most powerful, longest-lasting battery around just got better.

With a Bluetooth connection and the X2Power app, you can check your state of charge (SOC), voltage, cycles and more in real-time. Which means you don’t have to miss a minute in the water or on the road.

We may be a little biased, but we're not afraid to say it: X2Power batteries are the best lithium batteries around. Upgrade today.

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How long do lithium batteries last?

X2Power batteries are designed to last 10x longer than their lead-acid counterparts, meaning that you can fish longer, camp off-the-grid, ride and play for as long as the day lets you.

What are the benefits of lithium batteries?

  • Up to 10x longer life cycle than a traditional lead acid battery
  • Charges up to 4x faster than a traditional lead acid battery
  • Low self-discharge
  • Twice the power of traditional lead acid batteries
  • 10-year replacement limited warranty on X2Power lithium batteries with Bluetooth
  • Flexible installation
  • Consistent power
  • Lightweight, maintenance-free & super safe