The Renogy Core Mini 12V 300Ah LiFePO4 Battery 4-Pack (SKU RBT12300LFP-Mx4-US) includes four 12.8V 300Ah lithium iron phosphate batteries for a combined 15,360Wh of dependable deep-cycle power — built for larger RV, van, marine, home backup, and off-grid power systems. Each battery uses a built-in 200A BMS with low-temperature protection that limits charging below 32°F and discharging below -4°F, adding a safeguard in cold-weather conditions without manual oversight. Each unit weighs just 55.1 lb in a compact 15.12" x 7.64" x 9.96" case that's 57% lighter than a comparable 12V 200Ah lead-acid battery and fits common 4D and 8D battery boxes. Grade-A prismatic LiFePO4 cells support 5000+ cycles at 80% depth of discharge, and the four batteries can be wired in series, parallel, or a mix to match your system voltage and capacity needs.
This package includes four Core Mini batteries, each delivering 3840Wh, for 15,360Wh of combined lithium storage. That capacity suits larger RV, marine, and off-grid loads — such as a refrigerator, small appliances, and other essential circuits — when paired with a properly sized inverter. Actual runtime depends on your specific loads and inverter, so heavier draws like air conditioning will draw down capacity faster.
Each battery's integrated 200A battery management system guards against overcharge, over-discharge, over-current, and short circuits, and self-balances cell voltage. The low-temperature cut-off limits charging below 32°F (0°C) and use below -4°F (-20°C), helping protect the cells during winter travel and cold storage.
At 55.1 lb each, these batteries are manageable for one person to lift and install one at a time. The compact case is roughly 31% more space-efficient than many other 12V 300Ah LiFePO4 batteries and fits a range of enclosures, including 4D and 8D battery boxes, leaving more room for clean wiring and easier maintenance across a multi-battery bank. An IP65 rating adds protection against dust and low-pressure water.
Four batteries give you flexibility to build the bank your system needs — wired in series, parallel, or a series-parallel mix. The Core Mini supports configurations up to 4S4P (16 batteries) for systems as large as 61.44kWh, so this 4-pack can serve as a complete bank or a starting point for further expansion. Battery matching, cable sizing, fusing, charger settings, inverter compatibility, and clearance should be confirmed against current Renogy documentation before installation.
Four 12.8V 300Ah lithium batteries deliver 15,360Wh of combined deep-cycle capacity for larger RV, van, marine, and home backup systems. The lightweight, compact design keeps each unit easy to handle during installation.
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 for each unit during layout planning to support safe access, clean wiring, and proper serviceability across the bank.
Need help sizing the right lithium battery bank for your RV, boat, or off-grid setup?
Contact TrueStead Supply for capacity sizing, expansion guidance, and quote assistance.
✔ Battery sizing guidance
✔ Series & parallel expansion support
✔ RV, marine, home & off-grid options
| Brand | Renogy |
| Series | Core Mini |
| Model / SKU | RBT12300LFP-Mx4-US |
| Product Type | Deep-Cycle Lithium Iron Phosphate (LiFePO4) Battery |
| Configuration | 4-Pack (four 12.8V 300Ah batteries) |
| Nominal Voltage | 12V / 12.8V |
| Voltage Range | 10V to 14.8V |
| Rated Capacity (each) | 300Ah at 0.5C, 25°C |
| Rated Energy (each / combined) | 3840Wh each / 15,360Wh combined |
| Maximum Charge Current | 150A |
| Maximum Discharge Current | 200A |
| Peak Discharge Current | 380A for 10 seconds |
| Cycle Life | 5000+ cycles at 80% depth of discharge |
| Built-in BMS | 200A, with low-temperature cut-off |
| Charge Temperature Range | 32°F to 140°F / 0°C to 60°C |
| Discharge Temperature Range | -4°F to 149°F / -20°C to 65°C |
| Storage Temperature Range | -4°F to 140°F / -20°C to 60°C |
| Connection Method | Series and parallel, up to 4S4P (platform expandable to 61.44kWh) |
| Protection Rating | IP65 |
| Terminal Bolt Size | M8 x 1.25 x 12 mm & M8 x 1.25 x 16 mm |
| Recommended Terminal Torque | 70.8 in·lb / 8 N·m |
| Dimensions (each) | 15.12" x 7.64" x 9.96" / 384 x 194 x 253 mm |
| Weight (each) | 55.1 lbs / 25.0 kg |
| Included Accessories (per battery) | 2 long terminal bolts (M8 x 1.25 x 16 mm), 2 terminal bolts (M8 x 1.25 x 12 mm), user manual |
| Certifications | MSDS, UN38.3, FCC, CE, PSE, RCM, RoHS, UKCA |
| Warranty | 5-year prorated material and workmanship warranty |
