Weekend Trips
Power the essentials for short 1–3 day getaways, including your 12V fridge, lights, water pump, fans, phones, and other everyday devices.
Plan Weekend Power↗
From your fridge and lights to water pumps and everyday electronics, build a dependable LiFePO₄ power system for life on the road.
Start with the way you use your RV—from short weekend getaways to extended off-grid stays. Your travel style helps determine the battery capacity and system that fits you best.
Power the essentials for short 1–3 day getaways, including your 12V fridge, lights, water pump, fans, phones, and other everyday devices.
Plan Weekend Power↗Stay comfortable for longer trips with more energy for refrigeration, lighting, water pumps, device charging, fans, and other daily RV loads.
Plan for Longer Trips ↗Build for longer stays away from shore power with more battery capacity for daily appliances, solar charging, inverter loads, and expandable RV power systems.
Build My Off-Grid Setup ↗Select the devices you use and adjust their daily runtime. We'll estimate your energy needs and help you find the right battery capacity for your RV.
Select the nominal voltage of your RV house battery system.
Start with common RV appliances, then adjust wattage, runtime, and quantity to match your actual setup.
Add a common appliance, then edit the example values to match your actual model and usage.
Choose how many days of battery energy you want before recharging.
Compare BUKNUWO 12V LiFePO₄ batteries by energy capacity and BMS output. Start with your calculated energy requirement, then confirm inverter load, charging setup, installation space, and system compatibility.
A compact starting point for RV systems with lower daily energy needs. Its 1,280Whnominal capacity is suited to setups where your calculated battery requirement stays withinthis range and your inverter load is compatible with the 100A BMS.
A practical step up when your RV needs more energy than a 100Ah battery can provide.With 1,920Wh of nominal energy, it offers 50% more capacity than a 12V 100Ah batterywhile retaining a 100A BMS.
Designed for RV setups with higher daily energy requirements or longer periods betweencharging. It provides 4,019Wh of nominal energy and a 200A Smart BMS for higher-output battery systems.
Confirm inverter size, wiring, protection devices, charging equipment, and availableinstallation space before purchase.
Your LiFePO4 battery is only one part of the RV electrical system. Plan the battery, charging sources, inverter, DC loads, wiring, and installation together for a reliable setup.
Check battery dimensions, mounting location, ventilation, terminal access, and cable routingbefore installation.
Make sure your solar controller, DC-DC charger, or shore-power charger supports the voltage and charging requirements of your LiFePO4 battery.
Check inverter power, DC appliance loads, startup surge, BMS current limits, wiring, and overcurrent protection as part of the complete system.
Quick answers to common questions about RV LiFePO₄ battery upgrades, charging, solar compatibility, system sizing, and Bluetooth monitoring.
Explore Battery Help Center ↗In many RV house-battery systems, yes—but it should not be treated as an automatic drop-in replacement. Confirm the system voltage, battery dimensions, terminal layout, charger settings, solar controller, DC-DC charger, inverter requirements, wiring, and protection devices before upgrading.
Start with your total daily energy use in watt-hours (Wh), then multiply it by the number of days you want to run without recharging. Allow additional capacity for system efficiency and usable battery capacity. Use the RV Power Calculator above as a starting point, then confirm inverter load, BMS output, charging sources, and installation space.
Yes, when the solar system uses a compatible solar charge controller configured for LiFePO₄ batteries. Solar panels should charge the battery through an appropriate MPPT or PWM controller rather than being connected directly to the battery. Confirm the controller voltage and charging settings for your specific battery model.
Only if the charger supports the 14.6V voltage and charging profile required by your LiFePO₄ battery. Check the charger output voltage, charging mode, and current against the specifications of your selected BUKNUWO battery. A charger designed only for lead-acid batteries may not charge a LiFePO₄ battery correctly.
On supported Bluetooth models, the BUKNUWO app can display key battery information such as voltage, current, power, temperature, state of charge, and other available BMS data. The exact data and functions may vary by battery model and app version.
Some BUKNUWO battery models support series and/or parallel expansion, but the allowed configuration depends on the battery voltage and model. Use batteries with matching specifications and follow the connection limits in the product manual. Do not mix batteries with different voltages, capacities, models, or significantly different states of charge.

Have your vehicle type, devices, battery bay dimensions and charging setup ready. Let’s find the battery configuration that fits you.
Get RV Battery Selection Help ↗