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Core Mini - 12.8V 300Ah Lithium Iron Phosphate Battery

Core Mini - 12.8V 300Ah Lithium Iron Phosphate Battery

Sold by Renogy UK

From £419.99across the range: £419.99 – £3,016.99

Renogy UK's price when we last checked, on 2 September 2026. They run promotions and price by variant, so confirm the current price on their page before you buy.

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Multiple variants; verify the linked variant before quoting a price

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Overview

Core Mini - 12.8V 300Ah Lithium Iron Phosphate Battery

300Ah and 3,840Wh in the short Core Mini case. The most capacity Renogy will sell you in a 384mm footprint, and the obvious single-battery answer for a full-time build that has bench depth but not bench length.

  • 300Ah / 3,840Wh at 12.8V nominal
  • 5,000 cycles to 80% depth of discharge
  • 200A continuous discharge, 380A peak for 10 seconds
  • 150A maximum charge current
  • 25.0kg, 384 × 194 × 253mm
  • IP65, M8 terminal bolts

Capacity against recharge

3,840Wh is a lot of reserve — comfortably several days for a build running a fridge, heater, lights and laptops. The thing to plan for is putting it back. At 150A maximum charge current you can run a 60A DC-DC charger and a substantial roof array together without hitting the ceiling, which is what turns a long drive into a genuinely full battery.

Charging in the cold

Renogy quote a 0°C to 60°C charge window on this pack. There is no self-heating here, so below freezing it stops accepting charge until the cells warm. In a heated habitation space that rarely bites; in an underfloor locker through January it will. The self-heating 300Ah is the version that solves it.

Before you order

25kg in a 384 × 194 × 253mm case. Check payload and secure it on all axes — mass this size needs proper restraint, not a strap over the top.

Specification

Renogy's published figures

Taken from Renogy's own specification for this product, on the date shown by the price. Anything wired into 230V mains should be signed off by a qualified electrician.

Rated capacity 300Ah at 12.8V
Energy 3,840Wh
Cycle life 5,000 cycles (80% DOD, 80% EOL)
Charge temperature 0°C to 60°C
Discharge temperature -20°C to 65°C
Max continuous charge 150A
Max continuous discharge 200A, 380A peak for 10s
Dimensions 384 × 194 × 253mm
Weight 25.0kg
Protection rating IP65
Warranty 5-year prorated, material and workmanship

Build notes for this part

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