I've been testing the new Renogy Pro S1 120Ah Solid-State battery in my 2019 Hymer Touring GT trailer, and this is my first-week report. I'll walk you through the installation process, performance under heavy load, Bluetooth functionality, and point out some critical discrepancies I found between the marketing specs and the real-world performance.
What Was Tested This Week? (Nov 3-9, 2025)
- Received and unboxed the battery (Nov 3).
- Completed installation into the 2019 Hymer Touring GT trailer (Nov 4).
- Performed an initial full charge and benchmarked high-draw appliances (Nov 4-7).
- Conducted a high-load inverter stress test with combined loads (Nov 9).
- Completed a Bluetooth range test (Nov 9).
Key Findings & Detailed Analysis
Installation: Not a True "Drop-In" Replacement for RVs
The battery's end-terminal orientation is a significant issue for typical RV applications. It is not a direct "drop-in" for standard battery boxes.
I had to remove my battery box and re-orient the battery to connect the main 4/0 cables, which is a key piece of feedback for RV owners. The typical battery post locations on AGM and LiFePO4 batteries will require alternative battery box and wiring locations.
Final installation with the battery box removed and cables re-routed.
High-Load Performance: The BMS is Flawless and Precise
The battery's BMS is flawless. I ran a combined load of ~184A (Heater + Microwave).
Test setup and appliance benchmarks on a cold, snowy day (Nov 9).
The results were definitive: the Battery Management System (BMS) performed perfectly. The battery sustained this load for exactly 58-60 seconds before the BMS safely shut down power. This perfectly validates the "Primary Protection" spec of 165A @ 60s listed in the user manual (Page 24). It's reassuring to see such precise and reliable safety features in action.
Bluetooth Range: A Major Upgrade
The Bluetooth range is excellent. I was able to connect and monitor from 40m away, both outside and inside my house (through brick/drywall). This is a major improvement over the older BTS2 module.
App: Easy to Use
The DC Home app is clear, easy to use, and paired immediately.
Initial DC Home App connection (Nov 4, 50.39% SoC).
Issues & Discrepancies Identified
- Spec Discrepancy: There's a data discrepancy that's important to note. The website lists "150A Continuous" and "350A@30s," but the manual lists 165A@60s. My test proves the manual (165A@60s) is the correct functional spec, as my ~184A load tripped at exactly 60s.
- Marketing Discrepancy: The website's claim of "3000W output" (which requires ~234A) is asterisked for the 240Ah model. My test confirms the 120Ah model cannot meet this, as it's limited to ~165A. The claims about running multiple high-powered appliances are based on the 240Ah model's superior BMS and could create a misleading expectation for 120Ah buyers.
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Renogy Official Statement:
The protection system operates on two levels:
Your 184A load falls within the primary protection range, hence the 60s cutoff. Therefore, both the website's 350A@30s (Level 2) and the manual's 165A@60s (Level 1) specifications are correct. |
Plan for Next Week (Week 2)
- Conduct a full recharge test from a low SoC to time charge speed.
- Disconnect shore power and allow the battery's internal temperature to drop below 5°C to test the self-heating function upon charging.
- Prepare the final summary report as I will need to winterize the trailer soon.
Week 1 Conclusion
Overall, the Pro S1 120Ah battery is performing exceptionally well. The high-load test proves the BMS safety features are not only reliable but also perfectly aligned with the user manual's 165A@60s specification. The Bluetooth range and DC Home App are significant upgrades that enhance the user experience.
The main points of feedback for this week are:
- Physical Installation: The end-terminal layout is a challenge for standard RV battery boxes and requires planning and potential modification.
- Marketing Clarity: The specifications and performance claims on the website need to be clearly differentiated between the 120Ah and 240Ah models to ensure customers have accurate expectations.
I'm looking forward to testing the self-heating function next week. Stay tuned.
