Picture This
You’re parked on the edge of a pine-covered ridge, coffee in hand, sunlight spilling across your solar panels. The fridge is humming, the lights are on, and your laptop is charging — all without a generator in sight. The secret? Choosing the right Lithionics battery for your RV, van, boat, or tiny home.
In this guide, we’ll walk you through four of our most popular Lithionics battery models—what they’re designed for, how much power they deliver, and which systems they work best in.
There’s no single “right” way to build a power system — but these four batteries have become standouts in our customers’ favorite builds. Let’s look at how each one fits a different kind of adventure and help you find the one that feels made for yours, whether you’re just getting started or upgrading your setup.
The Right Lithionics Battery for your Adventure
Whether you’re chasing the horizon in a van or powering a lakeside cabin, the right Lithionics battery depends on your voltage, storage needs, and system complexity. Here’s a quick comparison:
| Model | Capacity | Best For | Your Story |
| 12V 320Ah | 4,096Wh | Class B vans, weekend RV trips, small off-grid solar setups | Weekend trip, fridge cold, lights on, movie night under the stars — all without plugging in. |
| 12V 640Ah | 8,192Wh | Full-time RV living, boats, tiny homes, or high-draw gear | Morning coffee, A/C for the dog, dinner on the induction stove — power to spare. |
| 24V 315Ah | 8,064Wh | Boats and off-grid homes with 24V systems and high-efficiency inverters | Work remotely, keep the cabin cool, and run essentials straight through sunset. |
| 51V 165Ah | 8,415Wh | Class A motorhomes, large solar cabins, or electric boats | Full climate control while away — return to comfort and power for the night ahead. |
Just getting started? Check out our free Lithium 101 Course to get a head start on the basics.
To keep it simple, here are the two key specs you’ll want to pay attention to:
- Voltage (12V, 24V, or 51V): What your system or appliances require
- Amp hours (Ah): How much energy your battery can store—and how long it can power your setup
Let’s take a closer look at our batteries—and how they power real adventures.
#1 The Van Life MVP – Lithionics 12V 320Ah Battery
Compact Power for Life on the Road
Perfect for: Class B vans, weekend RVers, and small off-grid setups
The Lithionics 12V 320Ah packs a punch in its compact footprint. With an integrated Battery Management System (BMS), it saves space and simplifies installation—no extra components needed. It’s the same model trusted by Winnebago for their EKKO, so it’s road-tested and adventure ready.
Power & Runtime
Power your mini-fridge, run the lights, and still stream a movie or two after a long hike. Heading out for the weekend? This battery can keep your essentials running while you’re off exploring—and even heat up your leftovers when you get back.
Need more power? Easily add a second 320Ah battery to double your runtime.
#2 The Full-Time Favorite – Lithionics 12V 640Ah Lithium Battery Module
Big energy for big adventures
Perfect for: Full-time RVers, liveaboard boaters, tiny homes, and high-draw setups
Built for longer stays and higher demands, the 12V 640Ah battery offers 8,192Wh of usable energy. It’s ideal for full-time RVers, off-grid travel, or marine life where power demands are high and reliability is non-negotiable.
With our proprietary NeverDie® BMS, you get built-in safety, long life, and optimal performance.
Power & Runtime
This battery more than doubles the capacity of the 320Ah model:
Make your morning coffee, run the A/C for the dog while you hit the trail, then cook dinner on your induction cooktop—all without breaking a sweat. Perfect for extended stays, it keeps your systems running for days, whether you’re boondocking in the desert or anchored in a quiet marina.
Want even more? You can parallel multiple units to expand your energy bank.
#3 The Solar Pro – Lithionics 24V 315Ah Lithium Battery Module
Efficient energy for smart systems
Perfect for: Marine systems and 24V off-grid setups with inverter-heavy loads
If your system runs on 24V, the Lithionics 24V 315Ah battery module is designed for top-tier efficiency.
Power & Runtime
You’ll see fewer voltage drops and more consistent output.
Ideal for solar setups, this battery keeps your water pump running, your lights on, and your inverter-fed appliances humming efficiently. You can keep the cabin cool and the power flowing while staying fully off-grid—and still have juice for your next round of solar charging.
#4 The Heavy Hitter – Lithionics 51V 165Ah Lithium Battery Module
High-voltage muscle for next-level power needs
Perfect for: Class A motorhomes, large solar cabins, and electric marine systems
The 51V 165Ah battery offers 8,415Wh of usable energy and is designed for next-gen high-voltage systems. It’s commonly used in electric RVs, Class A motorhomes, and large solar arrays. The 51V architecture reduces inverter strain and enables faster, cleaner charging.
Power & Runtime
Power your RV’s full climate control system while you hike or explore town, or blast your boat’s sound system into the night for a dockside party. This high-voltage beast handles it all—charging fast and keeping even the most power-hungry setups running strong.
Still Not Sure? We’re Here to Help.
Choosing the right lithium power isn’t always simple, but it doesn’t have to be overwhelming. Wherever your journey takes you — from weekend trails to full-time off-grid living — the right power system can make all the difference.
Tell us about your plans, and we’ll help you choose a battery that’s ready to go the distance: Request a Quote | Lithionics Battery Solutions
Power your journey with confidence—with Lithionics.
