How to Store Your Lithionics Battery: A Guide for RV and Marine Owners

Originally posted on the Lithionics blog

As the seasons change and cooler weather rolls in, RV and boat owners start to think about off-season storage. Packing up your gear and winterizing your vehicle may already be on your checklist, but don’t forget one of the most important steps—properly storing your Lithionics lithium-ion battery. The good news? With Lithionics, storage is straightforward. Our batteries are safer, smarter and easier to maintain than traditional lead-acid systems when you follow the proper steps.

We’ll walk you through the best way to store your Lithionics battery, answer the most common storage questions we hear and help you keep your system protected and ready for the next adventure.

Storing your battery correctly helps extend its life, protect your electrical system and make sure your RV or boat is ready to go when the season starts again.

Review the official Lithionics Battery Storage Guide for step-by-step instructions specific to your system

We know storage can raise a lot of “what if” questions—especially during the off-season. To make things easier, Lithionics collected the most commonly asked questions. These quick answers will help you store your battery safely, avoid common mistakes and keep your system in peak condition.

1. Can I leave my battery charging in storage?
No—we don’t recommend it. Leaving your battery connected to a charger for extended periods can cause unnecessary stress and reduce its lifespan. Here’s the better way to store it:

• Charge the battery to 100% State of Charge (SOC)
• Discharge it to 50–80% SOC
• Power the battery off completely
  
  

This simple process prevents overcharging and helps your battery stay healthy during storage.

2. Should I recharge my battery if it hasn't been used in over three months?
Yes. Before hitting the road (or water) again, charge your Lithionics battery to 100% SOC. This ensures peak performance and full reliability from the moment you power back up.

3. How should I store my battery in extreme temperatures?
Lithionics batteries are engineered to handle a wide range of conditions, but extreme heat or cold can still impact performance and lifespan.Recommended storage range:

• Minimum: -4°F (-20°C)
• Maximum: 122°F (50°C)
   

Pro trip: When possible, store your battery in a dry, temperature-controlled space.

4. Do I need to disconnect my battery for storage?
Yes. Disconnect all electrical loads from the battery—even small, passive ones like LED lights, sensors or monitoring systems.

These small “parasitic loads” may not look like much, but over time, they can drain your battery and cause undervoltage issues. Disconnecting the battery helps preserve its charge and reduces unnecessary wear during storage.

5. Is it safe to store a lithium battery? 
Yes. When stored properly, Lithionics batteries are safe, stable and reliable. Each battery includes built-in protection features to help prevent over-discharge, overheating or other potential issues. As long as you follow the recommended storage steps, your battery will be ready to perform when you are.

Use this simple checklist to store your Lithionics battery properly:

1. Charge to 100%
2. Discharge to 50–80%
3. Power off the battery
4. Disconnect all loads
5. Store in a dry, cool place (-4°F to 122°F)
6. Repeat charge/discharge cycle every 6 months

Follow these simple steps, and your Lithionics battery will stay healthy, reliable and ready when you are.