RV Lithium Batteries for Off-Grid Adventures

WattCycle 12V LiFePO4 batteries for RVs, vans, and trailers. Power your fridge, lights, and gear past cell service and far from the crowds.

Shop RV Batteries

Explore the 628Ah Ultra

Find the Right RV Lithium Battery for Your RV

Select your RV type to see the best-matched 12V LiFePO4 batteries, from Class A motorhomes to travel trailers and food trucks.

CLASS A · FULL-SIZED MOTORHOME

Keep your AC, refrigerator, kitchen appliances, and everyday essentials running with reliable battery power for extended trips and off-grid living.

CLASS B · COMPACT CAMPER VAN

Make the most of your space with reliable power for your fridge, lights, electronics, and everyday essentials on the road.

CLASS C · FAMILY-READY MOTORHOME

Enjoy every road trip with reliable power for your refrigerator, lighting, water pump, and essential appliances, from weekend getaways to extended adventures.

TRUCK CAMPER · GO ANYWHERE

Explore further with compact, reliable power for your lights, fridge, water pump, and essential devices on remote off-grid adventures.

TRAVEL TRAILER · UNHITCH AND STAY

Enjoy more freedom wherever you park with reliable power for your refrigerator, lights, water pump, and everyday essentials.

5TH WHEEL · FULL-TIME LIVING

Bring home-like comfort to every destination with reliable power for your appliances, entertainment, and everyday essentials during extended stays.

FOOD TRUCK · POWER THAT KEEPS SERVING

Keep refrigerators, freezers, lighting, ventilation, and POS systems powered with reliable energy for busy days on the go.

Choose Your RV Battery by Trip Length

From weekend getaways to months on the road, compare WattCycle LiFePO4 batteries by capacity, monitoring features, and how long you'll be off-grid.

Flagship 12V 628Ah Ultra

Our biggest RV battery: 8 kWh of lithium power with a 300A smart BMS and Bluetooth monitoring, built for long trips and full-time living.

Go longer. Worry less.

One 12V 628Ah battery powers your fridge, lights, inverter, and appliances for days, with 300A of output ready when you need it.

8038Wh

Capacity

300A

Smart BMS

ECE R10

Europe Certified

IP67

Waterproof Metal Case

Which WattCycle Battery Suits Your RV?

Pick the right power, size, and features for your setup.

BATTERY	12V 314Ah Mini Super	12V 314Ah Mini Self-heating	12V 314Ah Mini Bluetooth	12V 314Ah Mini
Energy	4019Wh	4019Wh	4019Wh	4019Wh
BMS	200A	200A	200A	200A
Bluetooth
Active Balancing
Dimension	15.22 × 8.12 × 10.74 inches (including handle)	15.12 × 7.64 × 9.76 in	15.12 × 7.64 × 9.76 in	15.12 × 7.64 × 9.76 in
Weight	60.30 lbs	59.52lbs	59.52 lbs	59.52 lbs
Self-heating
Price	$509.99 $899.99	$529.99 $699.99	$489.99 $679.99	$469.99 $629.99

Battery Runtime Calculator

Enter your battery specs and the devices you'll run at once to estimate how many hours it will last.

Voltage (V)

Capacity (Ah)

Battery Qty

Devices Running at Once

Device	Power (W)

Total Energy 0 Wh

Total Power Draw 0 W

Estimated Runtime 0 hrs

· Estimated at 95% usable capacity, assuming all devices run continuously and simultaneously. Actual runtime varies with startup surge, temperature, and wiring losses.

WattCycle at RV Shows & Events

From trade shows to outdoor expos and local meetups, see where we show up to talk lithium power with the people who use it.

Jun 26–28, 2026 · Redmond, Oregon · Booth A339
Overland Expo Pacific Northwest
Thanks to everyone who stopped by Booth A339 in Redmond, Oregon. Among 300+ exhibitors, we met overlanders and adventure travelers and talked off-grid power for their rigs, vans, and campers.
Jan 17–25, 2026 · Quartzsite, AZ · Booth #650A
Quartzsite RV Show
Thanks to everyone who stopped by Booth #650A in Quartzsite, Arizona. We showed off our 12V LiFePO4 lineup, from 100Ah to the 628Ah Ultra, and swapped real-world power tips with RVers.
Jun 23–25, 2026 · Munich, Germany · Booth C4.251
Intersolar Europe
Three days in Munich with solar pros, RV owners, and creators. We showed our new balcony storage system and the 12V 314Ah under-seat RV battery, and talked real-world power needs.
Oct 28–29, 2026 · Melbourne, Australia · Booth RR151
All Energy Australia
Two days in Melbourne with Australia's clean energy community. At Booth RR151, we shared our LiFePO4 battery solutions and talked storage needs with professionals, partners, and customers.

Real RV Setups and Real Off-Grid Power

Watch real WattCycle customers and creators put these batteries to the test.

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The Active BMS Arrives on the WattCycle 12V 314Ah Mini Super Lithium Battery

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THE BEST LITHIUM BATTERY FOR RV AND VAN?? Wattcycle 12V 314Ah Mini & Super Battery, Testing, Review

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I Built A Completely WATERPROOF DIY Power Station With Over 1200kw Of #WattCycle POWER!

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