24/7 Pre-Sale Support — Submit a Case to Contact Us
Best Seller Products
Core Mini - 12.8V 300Ah Lithium Iron Phosphate Battery with 500A Monitor
Core Mini - 12.8V 300Ah Lithium Iron Phosphate Battery with 500A Monitor
ShadowFlux 12V 200W Anti-Shading Solar Panel
Best Seller
ShadowFlux 12V 200W Anti-Shading Solar Panel
12V 3000W Pure Sine Wave Inverter with UPS Backup
Best Seller
12V 3000W Pure Sine Wave Inverter with UPS Backup
12V 50A DC-DC On-Board Battery Charger with MPPT
Best Seller
12V 50A DC-DC On-Board Battery Charger with MPPT
3.84kWh Motorhome Power Kit | 300Ah LiFePO4 Battery, 2000W Inverter
3.84kWh Motorhome Power Kit | 300Ah LiFePO4 Battery, 2000W Inverter
5.12kWh Power System | 200Ah LiFePO4 Batteries, 3000W Inverter
Best Seller
5.12kWh Power System | 200Ah LiFePO4 Batteries, 3000W Inverter
Popular Scenarios
Motorhome
Motorhome
Hit the road with the power of the sun.
Farm
Farm
Keep your farm productive with Renogy's reliable solar solutions.
Shed
Shed
Turn your shed into a self-sufficient space.
Support
Contact us

Core Mini - 12.8V 300Ah Lithium Iron Phosphate Battery

SKU: RBT12300LFP-M-RBM-UK
£419.99 £689.99
Tax included. Shipping Policy.
⚡ Weekend Flash Sale Save 5% Over £350, 8% Over £1,000 | Code: RNGMY. Limit of 1 order per customer during the promotion.
Flash Sale Ends In:
00 00
D
00 00
H
00 00
M
00 00
S
Mid-Year Sale | 5% off £350+ | 8% off £1,000+
valid until 2026-07-31
RNGMY
Key Features
  • • Smaller and lighter than traditional lead-acid batteries for space-saving installation.
  • • Grade-A prismatic LiFePO4 cells deliver 5000+ cycles at 80% depth of discharge (DOD).
  • • Low-temperature protection (charging: <0°C, discharging: < -20°C ).
  • • IP65-rated construction and vibration-resistant design for all-weather durability.
  • • 5-year warranty. Certified by FCC, CE, ROHS, UKCA, and more.
  • • Works with a Renogy 300A Battery Shunt for Remote Monitoring.
Multi-Pack
Free Shipping on All Products
30-Day Return & Refund Service



6% OFF Coupon for New Subscriber
Lifetime Customer Support Contact us: +44 3300589559
Show More Benefits Show Less
Quantity：
Payment Methods
Delivery Methods
Delivery time: 3–6 business days. (Excludes LTL shipping.) Free Shipping
Request Bulk Purchase Prices
Request Bulk Purchase Prices
For Home use For Business Use
Description
Includes
Specs
Downloads
FAQ
Reviews

Find Your Perfect Mini Match

High Capacity. Light weight. Mini Sized.

You won't find a lighter 12V 300Ah Lithium Battery anywhere. With its ultralightweight, compact design, and low-temperature cut-off, this battery is perfect for both travel and home use.

Space-Saving Design
Simplified Power

31% Smaller Than Its Counterparts

This battery's compact and sleek design saves space, provides more room for easier connections and maintenance. and fits in various battery boxes, including 8D and 4D sizes.

Simple. Powerful. Hassle-free.

One 12v 300Ah Battery is three times more powerful than the old three-battery setup. Two simple cable connections saves time, money, and stress. Plus, one battery eliminates cell imbalance issues.

Lighter Than Ever, Easier to Carry.

At only 55.1 lb/25 kg, this battery is easy for one person to carry. That's 9 lb/4 kg lighter than its counterparts! Its lightweight, compact design makes handling and installation hassle-free.

Cold Weather Charging Protection

The built-in BMS with low-temperature cut-off means you don’t have to monitor your lithium battery, manually shutting it down. Stay relaxed and cozy during winter travels while your battery handles itself, letting you focus on the adventure.

Motorhome
Boat

Power Your Motorhome Adventure

Two batteries provide 7680Wh of power. That's enough to run your fridge, microwave, coffee maker, and A/C unit for 24hrs+

Power Your Marine Adventure

Two batteries provides 7680Wh of power. That's enough to run your navigation, heating, lighting, and onboard essentials for 24hrs+

Up to 61.44kWh to Power any Adventure

Customize your power setup to fit your needs. Connect four batteries in series, four in parallel, or a mix of both to create a tailored power backup.

Package Includes

Core Mini - 12.8V Lithium Iron Phosphate Battery

x 1

Long Terminal Bolts (M8 x 1.25 x 16 mm)

x 2

Terminal Bolts (M8 x 1.25 x 12 mm)

x 2

User Manual

x 1

Specification

Core Mini - 12.8V 300Ah Lithium Iron Phosphate Battery

Dimension (L x W x H): 384 x 194 x 253 mm (15.12 x 7.64 x 9.96 in)
Weight: 25.0 kg / 55.1 lbs
Rated Capacity (0.5C, 25°C): 300AH
Nominal Voltage: 12.8V
Terminal Bolt Size : M8 × 1.25 × 12 mm & M8 × 1.25 × 16 mm
Energy: 3840Wh
Cycle Life (0.5C, 25℃): 5000 Cycles (80% DOD, 80% EOL)
Storage Temperature Range: -4°F to 140°F (-20°C to 60°C)
Charge Temperature: 32°F to 140°F (0°C to 60°C)
Discharge Temperature: -4°F to 149°F (-20°C to 65°C)
Operation Relative Humidity: 5% to 95%
Protection Rating: IP65
Charge Voltage: 10V to 14.8V
Maximum Continuous Charge Current: 150A
Maximum Continuous Discharge Current: 200A
Peak Discharge Current: 380A @ 10s
warranty
5-year prorated material and workmanship warranty

Resources Download

User Manual of 300Ah Battery

Download

Warranty

Download

Frequently Asked Questions

1. I have 4 Renogy 100W 12V solar panels. Will these work with this LiFePO4 battery or is that too much wattage?

Yes, but please make sure that your solar charge controller is capable of handling the power your solar panels can output. Do not connect solar panels directly to batteries without a solar charge controller. Feel free to contact us if you have questions about how to size the solar charge controller for your system.

2. Can this battery be used in series to build a 48-volt system？

Yes. Renogy 12V Core Mini Series Batteries can be connected in series to ramp up voltage for a 24V, 36V, or 48V off-grid power system. You can also consider wiring batteries in series first and then wire sets of batteries (same models required) in parallel for maximum power up to 61.44kWh.

3. How many Renogy 12V 300Ah Core Mini Series Batteries can I connect at most?

The Core Mini Series batteries support versatile connections, including series, parallel, and series-parallel connection. You can connect up to 4 batteries in series, 4 in parallel, or 16 in the series-parallel connection. Batteries of the same model and similar capacity are required.

4. How long will the Renogy Core Mini Series Lithium Iron Phosphate Battery last?

Renogy 12V 300Ah Core Mini Batteries are capable of delivering 5000 cycles with a recommended 80% depth of discharge (DOD). Meanwhile, these batteries combine a true 200A battery management system (BMS), IP65 protection, and rugged structural design to brace for challenges wherever you go.

5. Can I pair a Bluetooth Module for this battery to monitor the battery status on the phone?

No. This battery is not compatible with the Bluetooth module. You can use a 500A Battery Monitor With Shunt (sold separately) to keep track of battery status.

6. How to recharge my LiFePO4 batteries?

Whether you prefer charging batteries via solar, a DC-DC battery charger, or an AC-DC charger, we highly recommend a solar charge controller/charger that is compatible with lithium iron phosphate batteries.

Reviews

Best Sellers

Recent Blogs

Have questions?
Chat with us.