The Renogy Pro S1 12V 240Ah LiFePO4 Battery (SKU RBT12240LFP-SBH-G1-US) is a high-output deep-cycle lithium battery built for RVs, motorhomes, marine, and off-grid systems that run energy-hungry appliances. With 240A continuous charge and discharge and a 450A peak (30s), a single battery can deliver over 3000W of output and pair with up to a 2880W inverter, enough to run demanding loads when sized correctly. Up to 70% faster self-heating lets it recover from low-temperature cut-off and even accept charge down to -4°F, while Intelligent Power Armor (IPA) technology applies multi-level BMS protection that scales to the risk instead of shutting power off abruptly. Grade-A LiFePO4 cells are rated for 6000 cycles at 80% depth of discharge and backed by a 7-year warranty, all in a rugged IP67, UL94 V-0 flame-retardant case with Bluetooth and CAN monitoring.
With 240A maximum continuous charge and discharge and a 450A peak for 30 seconds, the Pro S1 240 delivers over 3000W of continuous output and works with up to a 2880W inverter. That headroom supports demanding loads — such as coffee machines and even air conditioning — and brief simultaneous use of high-draw appliances, provided your inverter and wiring are sized for the load. Actual capability depends on your specific system design.
Built-in self-heating helps the Pro S1 recover from low-temperature cut-off up to 70% faster than conventional packs, so power stays available on cold nights. Thanks to this, the battery accepts charging across a -4°F to 131°F (-20°C to 55°C) range — a meaningful advantage for winter travel and cold-climate off-grid use where standard lithium batteries pause charging near freezing.
The intelligent battery management system uses Intelligent Power Armor (IPA) to deploy targeted safeguards at different risk levels rather than cutting all power at once. It protects against overload and fault conditions while keeping output steady under normal demand, which helps the battery handle inverter surges and heavy loads more gracefully.
The Pro S1 is constructed from UL94 V-0 flame-retardant materials and carries an IP67 rating for dust and water resistance, along with vibration resistance for mobile installs. Enhanced Bluetooth reaches up to 32.8 yd / 30 m for easier remote monitoring through the Renogy app, with CAN communication and OTA firmware updates for ongoing system visibility.
High continuous and peak output lets the Pro S1 240 run demanding RV and off-grid appliances from a compact 12V battery. Rugged IP67 construction and vibration resistance suit mobile and marine installations.
Renogy lists installation clearance guidance of 1.97" to 3.94" above the battery and at least 7.87" on the busbar side. Check these spacing requirements during layout planning to support safe access, clean wiring, and proper serviceability.
Need help sizing the right lithium battery and inverter for your RV, boat, or off-grid setup?
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| Brand | Renogy |
| Series | Pro S1 |
| Model / SKU | RBT12240LFP-SBH-G1-US |
| Product Type | Deep-Cycle Lithium Iron Phosphate (LiFePO4) Battery |
| Battery Cell Type | Lithium Iron Phosphate (LiFePO4) |
| Nominal Voltage | 12.8V |
| Charge Voltage | 14.4V |
| Voltage Range | 10.8V to 14.6V |
| Rated Capacity | 240Ah (0.5C, 25°C) |
| Nominal Energy | ~3072Wh (12.8V × 240Ah) |
| Max Continuous Charge Current | 240A |
| Max Continuous Discharge Current | 240A |
| Peak Discharge Current | 450A for 30 seconds |
| Cycle Life | 6000 cycles at 80% depth of discharge |
| Self-Heating | Yes — up to 70% faster recovery from low-temperature cut-off |
| Charge Temperature Range | -4°F to 131°F / -20°C to 55°C |
| Discharge Temperature Range | -4°F to 140°F / -20°C to 60°C |
| Storage Temperature Range | -4°F to 140°F / -20°C to 60°C |
| Connection Method | Series and parallel, up to 4S4P |
| Protection Rating | IP67 |
| Flame-Retardant Rating | UL94 V-0 materials |
| Communication | Bluetooth (up to 30 m) and CAN, with OTA updates |
| Terminal Bolt Size | M8 x 1.25 x 12 mm (long: M8 x 1.25 x 16 mm) |
| Recommended Terminal Torque | 70.8 in·lb / 8 N·m |
| Dimensions (L x W x H) | 15.94" x 9.61" x 7.4" / 405 x 244 x 188 mm |
| Weight | 56.21 lbs / 25.5 kg |
| Operating Humidity | 5% to 95% |
| Certifications | MSDS, UN38.3, FCC, CE, PSE, RoHS, RCM, IC, UKCA |
| Warranty | 7 years |
