Ships directly from the USA with an estimated time of 3-8 weeks!
You can download the user spec sheet for the battery from here:
You can download the user manual for the inverter from here:
The 12V Van/RV OWL Max System is a complete calibrated drop-in kit designed to fit all existing 12 Volt RV Systems. With up to 4 OWL Max 2 Units you could have over 12KWh of usable power storage calibrated to a Pure Sine Wave Inverter & charger in one which is capable of running all electronics, electric motors and the majority of all heavy appliances in the market today.
This system provides you with 2-3X More Power at 1/4th the weight & size of your current lead-acid battery system. The 12V Van/RV OWL Max System was designed to save you weight, space, time, fuel, money and the headache of maintenance.
With this UL Certified 2,000 Watt Pure Sine Wave Inverter & Charger ( Model Number: PICOGLF20W12V120V ), you will have access to 2x more power in your RV and the capability to run all electric motor appliances such as pumps and hair dryers. It was designed for moderate sized RVs, campsites, tailgating parties, solar systems, and much more. It will also charge your battery seamlessly when connected to shore power. The included 3KWh OWL Packs will provide more power, space and better fuel efficiency while removing a minimum of 500lbs of weight from your RV.
With the 12V Van/RV OWL Max System you will be able to power everything in your RV including high-energy applications. You’ll be able to operate compressors, washing machines and AC units without the need to run, hear or smell your diesel generator. The Inverter/Charger will be able to directly recharge from any shore power outlet, AC outlet, solar system or generator. All batteries included are guaranteed to last 10+ Years with Zero Maintenance!
Why Upgrade Your RV from Lead Acid to BigBattery?
BigBattery: Lasts 10+ Years with Zero Maintenance. (3,000-4,000/Cycles)
Lead-Acid: Lasts 2-3 Years with annual maintenance required. (500-1000/Cycles)
BigBattery: Weighs ⅓ the weight @ 52/LBS for 3KWh of Capacity.
Lead-Acid: Battery Bank adds 600/lbs to your RV lowering your RV’s fuel efficiency.
BigBattery: Provides 2-3x More Power to easily run heavy applications.
Lead-Acid: Relies on your generator using fuel to power heavy applications.
BigBattery: Charges 3x Faster through “Continuous Charge”.
Lead-Acid: Charges slower requiring wave charging and emits toxic offgas.
BigBattery: Requires 1/3rd the space, providing extra storage capacity.
Lead-Acid: Requires 3x more space, eliminating valuable storage for your tools and toys.
BigBattery: Includes Smart Safety Features in every pack. (BMS/FUSE/THERMAL)
Lead-Acid: Zero safety built in. Exposed leads & terminals. Requires additional fuses
Chemistry: LiFePO4 (New)
Charging Voltage Range: 13.9 - 14.5
Max Charge Voltage: 14.7V
Operating Voltage Range: 9.8 – 14.6V
kWh Capacity: 3kWh
Ah Capacity: 228Ah
Cell Configuration: 4S
Max Continuous Discharge Current Amps: 175
Max Continuous Power Watts: 2240
Max Discharge Peak Current Amps: 350 (6 Seconds)
Max Charge Current Amps: 175
Charge Temp Range (°C): 0°C (32°F) / 55°C (131°F)
Discharge Temp Range (°C): -30°C (-22°F) / 55°C (131°F)
Optimal Discharge Temp Range: 15°C (59°F) / 35°C (95°F)
Storage Temp: -5°C (23°F) / 35°C (95°F) (Max 6 Months)
Weight: 52 (LBS)
Length Inches: 10.25
Width Inches: 7.5
Height Inches: 13.1
Safety Features: BMS (Battery Management System)
Over Voltage, Under Voltage, Over-Current
(Thermal Management System), Safety Fuse (300A)
Parallel: Up To (8) Parallel
Designed for 12V Applications:
✅ Lead Acid Replacement
✅ Intense Heat and Cold
✅ Emergency Power
✅ Off-Grid Power
✅ Solar Systems
✅ Camper Vans
✅ Mobile Power
✅ Power Chairs
1X Capacity - 1 × 12V OWL MAX 2 - LiFePO4 - 228Ah - 3.018kWh + 1 × 2000 Watt Pure Sine Inverter Charger + 1 × (1) BB175 to Ring Terminals Cable, 2X Capacity - 2 × 12V OWL MAX 2 - LiFePO4 - 228Ah - 3.018kWh + 1 × 2000 Watt Pure Sine Inverter Charger + 1 × Parallel Busbar + 4 × (1) BB175 to Ring Terminals Cable, 3X Capacity - 3 × 12V OWL MAX 2 - LiFePO4 - 228Ah - 3.018kWh + 1 × 2000 Watt Pure Sine Inverter Charger + 1 × Parallel Busbar + 5 × (1) BB175 to Ring Terminals Cable, 4X Capacity - 4 × 12V OWL MAX 2 - LiFePO4 - 228Ah - 3.018kWh + 1 × 2000 Watt Pure Sine Inverter Charger + 1 × Parallel Busbar + 6 × (1) BB175 to Ring Terminals Cable
I've installed two 170ah batteries from Big Battery in my 40ft 5th wheel to replace my less than adequate factory lead acid batteries and I love them! These batteries are far cheaper in the long run in comparison to any lead acid battery due to the much higher useable capacity and way more discharge cycles than lead acid batteries. Their response time when replying to emails is great, even the same day from my experience. Also their price is comparable to other manufacturers and even cheaper than some of the more well known manufacturers. I highly recommend Big Battery to all my RV friends! Keep up the great work!
I got one of the new kits, and everything was packaged nicely and I put it in my mid-size RV and it's great. It's all connected to solar panels on top and the inverter goes right to my phone so I literally haven't opened my battery compartment since I installed them. Great stuff, I'll probably get more for a cabin project coming up.