Description
Overview
The Renogy Core Mini 300Ah packs a lot of capacity into a light, compact case: at 55.1 lb (25 kg), one person can carry it. Renogy says it’s 31% smaller than its counterparts and fits common battery boxes, including 8D and 4D sizes.
One 300Ah battery replaces a three-battery setup with two simple cable connections and no cell imbalance between batteries. The built-in BMS cuts off charging automatically in low temperatures.
Who it’s for
- RVers who want big capacity without the weight.
- Boat owners powering navigation, heating and lighting.
- Home backup systems that need to scale.
Key benefits
- Light: 55.1 lb, easy for one person to carry.
- Compact: fits 8D and 4D battery boxes.
- Cold protection: automatic low-temperature charging cut-off.
- Scales big: up to 4 in series and 4 in parallel, up to 61.44kWh.
- Real-world capacity: two batteries provide 7,680Wh, which Renogy says can run an RV fridge, microwave, coffee maker and A/C for 24+ hours.
Specifications
| Voltage | 12.8V |
|---|---|
| Capacity | 300Ah |
| Chemistry | LiFePO4 |
| Expandable to | 61.44kWh (4S4P) |
| Options | 1 or 2 batteries, or 1 battery with battery monitor |
| Installation clearance | Leave 1.97 to 3.94 in (5 to 10 cm) above the battery and at least 7.87 in (20 cm) on the busbar side. |
| Weight | 55.1 lb (manufacturer figure) |
FAQ
Will it fit my battery box?
Renogy says it fits various battery boxes, including 8D and 4D sizes.
Can I charge it in winter?
The BMS stops charging automatically when it’s too cold, to protect the cells.
Warranty
Manufacturer’s warranty: 5 years, prorated. Prorated: replacements in the first 12 months are free; after that Renogy charges a share of the original price based on the time used. Source: Renogy limited warranty.
Defective on arrival or within 30 days? You can also return it to us under our Returns & Refunds Policy. See how warranty claims work.














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