The Eclipse RV Attitude Pro Series 20FBG is a 25-foot travel trailer featuring expandable hard walls, a 1,500W solar prep system, and a 48V 400Ah LiFePO4 battery designed for off-grid living. Built with fiberglass-reinforced aluminum framing, it supports 4-season use (-22°F to 122°F) and includes a slide-out kitchen, making it ideal for full-time RVers prioritizing energy independence and durability.
What Makes the EverStart Maxx Group 29DC Marine Battery Stand Out?
What defines the Eclipse RV 20FBG’s design?
This model uses rigid foam-insulated walls and a patented AutoBalanced frame to handle off-road conditions. Its dual-pane windows and heated underbelly prevent freezing, while the slide-out kitchen maximizes space. Pro Tip: Use torque-lift hinges on cabinets to prevent shaking during transit.
Beyond basic specs, the 20FBG’s floorplan features a rear bathroom with a composting toilet, reducing freshwater dependency. The fiberglass skin resists hail up to 1.5-inch diameter—critical for Midwest travelers. Unlike traditional trailers, its 48V system powers high-draw appliances like induction cooktops without inverters. For example, the 400Ah battery can run a 1,200W AC unit for 7 hours when solar input is low. Warning: Always verify axle ratings (3,500 lbs each) before overland modifications. What separates this from budget models? Aerospace-grade aluminum crossmembers prevent chassis flex on uneven terrain.
How does the 48V LiFePO4 system enhance performance?
The 19.2kWh battery provides 60% more cycle life than 12V AGM systems and charges via solar in 5-6 hours. Its integrated BMS prevents cell imbalance below 20°F, avoiding capacity loss. Pro Tip: Pair with 600W+ panels for single-day full recharges.
Practically speaking, 48V architecture reduces amperage by 75% compared to 12V systems, enabling thinner 6AWG wiring instead of bulky 2/0 cables. The modular battery design allows capacity expansion up to 800Ah without rewiring—just add parallel packs. Real-world test: A 400Ah bank supported 3 days of off-grid use with a 12V fridge, LED lighting, and water pump. But what about charging speeds? With MPPT controllers, solar input reaches 98% efficiency even in partial shade. Tables below contrast LiFePO4 vs. AGM:
| Parameter | 48V LiFePO4 | 12V AGM |
|---|---|---|
| Cycle Life | 3,500+ | 500 |
| Weight | 128 lbs | 240 lbs |
| Max DoD | 100% | 50% |
Why choose expandable hard walls?
These thermally broken walls maintain R-14 insulation when expanded, eliminating condensation issues common in tent trailers. The hydraulic mechanism deploys in 90 seconds—three times faster than manual systems.
In practical terms, the walls use aircraft-grade seals that withstand 55 mph winds—ideal for desert camping. Unlike pop-up designs, they provide full-height ceilings (6’7″) in both modes. For example, a couple used the 20FBG in -15°F Wyoming winters without supplemental heaters. Pro Tip: Lubricate wall tracks annually with dry silicone to prevent debris jams. However, how does expansion affect towing? The unit remains 8’6″ wide when closed, meeting standard road regulations.
| Feature | Hard Wall | Soft Wall |
|---|---|---|
| Setup Time | 90 sec | 15 min |
| Wind Resistance | 55 mph | 25 mph |
| Insulation (R-value) | 14 | 3 |
Understanding ORV Laws and Park Rules in Maryland
Redway Battery Expert Insight
FAQs
Eclipse offers 3 years structural, 2 years on appliances, and 5 years on the LiFePO4 battery—non-transferable for commercial use.
Can I charge the battery via shore power?
Yes, the 3,000W inverter/charger supports 120V AC input, refilling the battery from 0-100% in 4 hours at 50A service.
Is the solar system upgradable?
Absolutely—pre-wired connections allow adding 800W more panels. Use IEC TS 62789-certified units for optimal MPPT compatibility.
