LiFeBlue Battery

12 Volt, 300AH

Model LB12300D-LT

Lithium Iron Phosphate (LiFePO4)


300AH Model LB12300D-LT

Size: 20.5" x 11" x 9.25" Tall

Weight: 87 Pounds

Charge Current: 120A; Up to 150A @ <75° F

Charge Voltage Range: 13.8 to 14.8 Volts

Discharge Current: 150A continuous, 200A for 30 Minutes

Terminals: M8 Bolts with washer and lock washer

NEW! Dual Modbus Port, RS485

NEW! Reset Button

NEW! LED SoC Meter


LiFeBlue Low Temperature batteries use our latest Lithium Iron Phosphate (LFP or LiFePO4) prismatic cells. Charging any Li-ion battery with frozen cells can cause permenant damage. Our unique BMS and built in heater will warm the cells to a safe temperature to protect the battery.

The LB12300D-LT is ideal for deep cycle energy storage in recreational vehicles (RV) and boats. With our high current design, a single battery can supply up to 200 Amps output. In addition to RV and Marine use, it is well suited for all 12 Volt off-grid use, industrial applications and more. LiFeBlue Low Temperature batteries are only for 12 Volt parallel connection and not suitable for 24, 36 or 48 Volt systems.

Our "drop in" replacement battery is unlike any other on the market. The automatic BMS system offers 10 different protection modes including, over and under voltage, over and under temperature, over current, short circuit, fault events and more. We have specially designed the BMS for RV and Marine use where there are multiple charge sources with different charge profiles and voltages. Our battery can be charged directly from ANY PV solar controller, ANY inverter/charger and with properly sized wiring, ANY alternator can be used without the need for a special regulator or DC-DC converter. You do not need a special "Lithium" capable charger. Some multi-stage converters will not work but any standard CV converter that can output 13.8 Volts or higher will work.

Our New Design

This is our newest D model battery, Version 3, that has the latest battery cell development and our new BMS, designed with the future in mind. A dual Modbus data port allows us to update firmware should it become necessary or to add new features. Comminications development is ongoing now that will let you use Smart Connect WIFI App from anywhere you have an internet connection. With Push Notifications, you wil be kept up to date about your battery condition and State of Charge (SoC). A top mounted reset button has been added to check the SoC or to reset the MCU should that need occur.

Low Temperature

Built in heating system.

Safely charge and use your

battery down to -5°F!

Smart Connect Bluetooth Monitoring

Every LiFeBlue Battery has Wireless Bluetooth communications built in. Our free Aple IOS or Android App called Smart Connect keeps you informed about the functioning of your battery from your tablet or smart phone. No internet connection is needed!

Our App includes Battery Monitoring so you will always know the State of Charge (SoC) or how much energy is left in the battery. This feature is not available in most other batteries and will save you hundreds of dollars buying an external battery monitor.

The Event page will list any fault event to help diagnose any problem you may have.

Must Ship By Freight Truck Only


All 300AH batteries must ship by LTL Freight. You must make provision for unloading a truck. Forklift or loading dock recommended. Do not sign for a liftgate unless you choose to use it or you will be billed for it by the carrier. Contact us before ordering for a quote or more details.