Can Lithium Batteries Get Wet? Exploring the Impact of Water on Lithium Batteries

Lithium batteries are a popular choice for their impressive performance and reliability. However, a common concern is how they react to water. In this article, we’ll explore the relationship between lithium batteries and water, focusing on the impact of moisture on their performance. We’ll also highlight the differences between lithium batteries and lead-acid batteries when it comes to water exposure. By the end, you’ll have a comprehensive understanding of how to safeguard your lithium batteries from potential water damage.

Can Lithium Batteries Get Wet? Exploring the Impact of Water on Lithium Batteries

Understanding the Interaction of Lithium Batteries with Water

Lithium Batteries vs. Lead-Acid Batteries

To understand how lithium batteries react to water, it’s essential to compare them to lead-acid batteries:

  • Lead-Acid Batteries: These batteries use a sulfuric acid electrolyte solution and need regular maintenance with distilled water. They are more susceptible to water-related issues.
  • Lithium Batteries: In contrast, lithium batteries are hermetically sealed and require no maintenance. This design inherently makes them less vulnerable to water damage.

Can Lithium Batteries Get Wet?

  • General Resilience: Lithium-ion batteries are generally sealed, providing some level of protection against water exposure. They can withstand light rain or splashes without issues.
  • Excessive Exposure: Prolonged water exposure, especially submersion, can lead to reduced battery performance or even make the battery inoperable over time.
  • Water Protection: It’s crucial to protect lithium batteries from extended exposure to water, especially in more severe conditions.

Impact of Water on Lithium Batteries

  • Occasional Exposure: In most cases, occasional encounters with water don’t harm sealed lithium batteries.
  • Extended Exposure: Extended water exposure may potentially damage sensitive components, including terminals.
  • Saltwater Concerns: Saltwater is more damaging than freshwater due to its corrosive and conductive properties, leading to more substantial performance degradation.

Safety Concerns

  • Direct Exposure: Direct exposure of lithium batteries to water can potentially trigger a chemical reaction, producing hydrogen and lithium hydroxide, both of which are hazardous.
  • Destruction: However, this would involve disassembling the battery, rendering it useless before any water interaction.
  • Sealed Batteries: A properly sealed lithium battery should not explode if accidentally submerged.

Recharging Wet Lithium Batteries

  • Damp Batteries: Slightly damp lithium batteries should generally not pose a problem for recharging.
  • Submersion: However, if a battery is fully submerged or has been sitting in water, it should not be charged.
  • Suspected Water Damage: If there’s any suspicion of water damage, it’s safer to dispose of the battery than attempting to recharge it.

Leaving Lithium Batteries Outside

  • Short Periods: Lithium batteries can tolerate short-term exposure to the elements, thanks to their sealed design.
  • Longevity Concerns: Extended exposure to environmental conditions, like rain, may decrease the battery’s lifespan.
  • Protection: To ensure longevity, it’s advisable to shield lithium batteries from rain, water, extreme temperatures, and other weather-related elements.

Precautions for Keeping Lithium Batteries Dry

  • Covered Locations: Install batteries in covered areas to protect them from water exposure.
  • Waterproof Solutions: Consider waterproof battery boxes or compartments to add an extra layer of protection.
  • Limit Usage in Wet Conditions: Avoid using vehicles or boats during rainy or wet conditions to minimize water exposure.

Waterproofing Lithium Batteries

  • Additional Protection: Wrapping batteries tightly or applying waterproof coatings can offer extra protection against water.
  • Exposed Parts: Ensure that critical parts of the battery, such as terminals, remain exposed and functional.

Safety of Lithium Batteries on Boats

  • Usability: Under normal circumstances and with proper care, lithium marine batteries are safe for use on the water.
  • Benefits Over Lead-Acid: Compared to lead-acid batteries, they offer more mounting options and have a lower risk of encountering issues in challenging marine conditions.
  • Lithium-Iron Phosphate Batteries: Some of the most stable and safe lithium-ion batteries include lithium-iron phosphate batteries, like Battle Born batteries.


In conclusion, while lithium batteries can tolerate some degree of water exposure due to their sealed design, precautions should be taken to prevent extended and severe interactions with moisture. By following these basic guidelines, you can ensure both the safety and longevity of your lithium batteries, even in conditions where water exposure is a concern.

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