GROUP 27 RV LITHIUM BATTERY
12V LiFePO4 Replacement for Reliable RV Power
Upgrade your Group 27 lead acid battery with TUORDE Smart LiFePO4 technology, delivering balanced energy capacity, lightweight design and intelligent battery monitoring for modern RV applications.

ENERGY CHOICE
100Ah / 120Ah configurations
INSTALLATION
Group 27 fit reference
CONNECTED OPTIONS
Smart BMS · App · CAN / RS485
| Specification | 100Ah Configuration | 120Ah Configuration |
|---|---|---|
| Battery chemistry | LiFePO4 | LiFePO4 |
| Nominal voltage | 12.8V | 12.8V |
| Rated capacity | 100Ah | 120Ah |
| Nominal energy (calculated) | 1,280Wh | 1,536Wh |
| Dimensions (L × W × H) | 306 × 173 × 225 mm | 306 × 173 × 225 mm |
Nominal energy = nominal voltage × rated capacity; these figures are not measured usable energy. The dimensions match the supplied 100Ah and 120Ah battery illustrations. Confirm the final model drawing, terminal clearance, current ratings and charging limits before ordering. Review Battery Datasheets & Technical Resources, then request the approved drawing and electrical limits for your 100Ah or 120Ah Group 27 configuration.
Choose 100Ah or 120Ah configurations to balance energy requirements with the selected battery’s installation footprint.
Group 27 options for suitable RV battery compartments and replacement applications, with dimensions verified for each model.
Cell monitoring, temperature protection and communication options selected for your system requirements.
Energy storage designed for repeated RV charging and discharging within the specified operating limits.
A larger group-size reference does not automatically mean more amp-hours. Compare rated energy, BMS current and the physical housing. Explore RV Lithium Battery Solutions for other battery platforms. Browse AI Smart RV Batteries for current model listings; confirm the Group 27 housing for the selected configuration.
| Feature | Lead Acid Group 27 | LiFePO4 Group 27 |
|---|---|---|
| Voltage | 12V nominal | 12.8V nominal |
| Usable Energy | Depends on discharge depth, load and battery condition. | Higher usable energy at a comparable rated capacity, within the selected model’s limits. |
| Weight | Generally heavier at a comparable rated capacity. | Generally lighter; confirm the actual model weight. |
| Cycle Life | Depends on battery type, temperature, discharge depth and maintenance. | Model-specific cycle life; compare under equivalent test conditions. |
| Maintenance | Flooded batteries require watering; AGM batteries do not. | No electrolyte watering; inspect mounting, cable connections and charging settings. |
Runtime and cycle performance depend on load, charging, temperature and discharge depth. Use the selected model datasheets for the final comparison.
Before a Group 27 RV battery replacement, record the installation envelope and compare it with the selected battery drawing. Group size is a reference, not a guarantee of matching dimensions.


| Fit check | What to record | Why it matters |
|---|---|---|
| Length | Usable tray length and full battery body length. | Housing projections and retaining hardware must fit. |
| Width | Tray width and available side clearance. | Allow the required space for straps or brackets. |
| Height | Body height plus terminals and cable bends. | Verify clearance beneath the compartment lid. |
| Terminal Position | Polarity, terminal location and cable reach. | Confirm connector compatibility and protection covers. |
| Battery Tray Clearance | Mounting access and service space around the battery. | Follow the selected model’s installation requirements. |
Use the RV Lithium Battery Compatibility Guide to check physical fit alongside converter, solar, inverter and charging requirements. Compare Group 24, Group 27 and Group 31 Lithium Battery Sizes. Compare alternative enclosure options in our Group 24 Lithium Battery and Group 31 Lithium Battery guides.
Select protection, communication and monitoring around your RV energy system. A Smart BMS can connect the battery’s operating information with compatible app and equipment interfaces.

View SOC, voltage, current and temperature through a compatible mobile application.
Exchange battery data with supported RV equipment using a validated protocol.
Connect compatible controllers and communication interfaces.
Review battery condition through operating data and diagnostic indicators.
Estimate available operating time as connected loads and conditions change.
Smart BMS & AI RV Battery Technology
Bluetooth, CAN, RS485, health monitoring and runtime prediction are configuration-dependent. Selected configurations also support abnormal drain alerts and One-Tap Smart Troubleshooting to identify abnormal conditions and guide diagnosis; these functions do not perform physical battery repair. Confirm firmware, protocols and connected equipment compatibility before integration.
Group 27 offers a practical platform for balancing installation space with RV energy requirements. The selected capacity, current rating and charging setup determine the final fit.
Support campsite house loads and solar-assisted camping.
Selection priority: Daily consumption and recharge opportunities.
House energy for lighting, appliances and compatible inverter loads.
Selection priority: Continuous current and inverter startup demand.
Install in a suitable tray with practical cable and service access.
Selection priority: Available footprint and terminal clearance.
Plan energy storage around the required operating time.
Selection priority: Usable energy, charging sources and autonomy.
Treat a chemistry change as a system upgrade. Confirm the existing installation first, then verify the complete LiFePO4 setup before operating the RV.

Review RV Lead Acid To Lithium Battery Replacement for the checks that accompany an RV lithium battery upgrade.
A Group 27 lithium battery is a LiFePO4 battery designed around the physical format commonly associated with Group 27 batteries. The group label is a fit reference; capacity, current rating and charging requirements depend on the selected model.
A compatible 12V LiFePO4 battery with the correct dimensions, terminal position and electrical ratings can replace a Group 27 RV house battery. TUORDE provides 100Ah and 120Ah Group 27 configurations; confirm the model drawing and system requirements before selection.
Many RV house battery systems can be upgraded after checking installation space, voltage, charging settings, inverter loads, wiring and fuse protection. Verify converter, solar controller and alternator charging compatibility rather than assuming an automatic drop-in replacement.
Group 27 does not specify a fixed amp-hour capacity. TUORDE Group 27 options include 100Ah and 120Ah configurations. Choose capacity using daily energy consumption and required runtime, then verify dimensions and BMS current capability.
A properly selected Group 27 LiFePO4 battery can provide deep cycle house power for travel trailers, motorhomes and camper vans. Its usable energy, current limits, mounting and charging conditions should match the application.
Yes, when the solar charge controller supports the selected battery’s LiFePO4 profile, charging voltage and current limits. Check low-temperature charging protection and the combined current from all charging sources.
They require compatible charging settings. An existing charger may be suitable if its voltage, current and modes meet the battery specifications. Do not use lead-acid equalization or desulfation modes; alternator charging may require a DC-DC charger.
Selected TUORDE Group 27 configurations support Bluetooth monitoring and CAN or RS485 communication options. Validate the protocol, firmware, app functions and connected equipment compatibility for the selected battery configuration.
Choose TUORDE Group 27 LiFePO4 batteries for balanced RV energy storage, deep cycle performance and intelligent battery management.
Share your installation dimensions, daily energy requirements and charging equipment for a battery recommendation. For custom branding, battery configurations and integration requirements, explore our RV Battery OEM & Private Label Solutions.