12V Van / RV Power System Plus


10 Year Warranty

Category SKU#:

Upgrade Your System & Save

3x Capacity

w. Pre-Wired Parallel Box
$ 5,587
  • (3) 12V OWL Max - LFP - 606AH - 7.8 kWh
  • 2000 Watt Pure Sine Inverter Charger
  • Parallel Box
  • All Cables

4x Capacity

w. Pre-Wired Parallel Box
$ 7,026
  • (4) 12V OWL Max - LFP - 808AH - 10.4 kWh
  • 2000 Watt Pure Sine Inverter Charger
  • Parallel Box
  • All Cables


The 48V All-In-One RV Power System Plus is a complete calibrated drop-in kit designed to fit all existing 12 Volt RV Systems. With (2x) Owl MAX Units you will have over 5.1KWh 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 – Power System Plus Upgrade Kit 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, 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 for moderate sized RVs, small off-grid homes,  business back up power, campsites, tailgating parties, or solar systems. It will also will charge your battery seamlessly when connected to shore power.The included 5.1KWh OWL Packs will provide more power, space and better fuel efficiency while removing a minimum of 500lbs of weight from your RV.

With the Power System Plus 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 re-charge from any shore power outlet, AC outlet, solar system or generator. All batteries included are guaranteed to last 10+ Years with Zero Maintenance! 


Installation Time Required: (2-3 Hours)

Gain More Power, Fuel Efficiency, Storage Space, and Peace Of Mind with the Power System Plus!

This Kit Includes:

BATTERY:    (2x) 5.1kWh Battery Pack : (2x) [OWL MAX LiFePO4 Packs]
INVERTER:  2,000 Watt Pure Sine Wave Inverter & Charger: AIMS POWER – Model: PICOGLF20W12V120V

SAFETY:      Built-In BMS & Thermal Management System & 300A Fuse
CABLES:     SB-175 Ring Terminal Cable & SB-175 Paralell Cable 2 to 1


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 @ 94/LBS for 5.1KWh 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. 


We are here to help! If you have any questions about your specific application, feel free to contact us via email at Sales@BigBattery.com or call # (818) 280-3091.

Tech Spec


✅ LED Display
✅ Compact Modular Design
✅ High Temp Operating Range
✅ Best Power Density/Pack Size
✅ Best Aluminum Mosfet Design
✅ 3000 A Short Circuit Protection
✅ High Cold-Cranking Amps (400A)



Modal Title


Modal Title

For more information or larger quantity inquiries, visit our B2B page or please call our sales team at #(818) 280-3091

Stay Up To Date

Get access to exclusive deals, hear about new products before anyone else, and enjoy tips, tricks, and DIY hacks from our community of experts.

Online Support

LiveChat, Call & eMail

10 Years Warranty

Full Battery Coverage

Fastest Shipping

Manufacturing In USA

Safest Batteries

Reliable: LiFePO4