36V EVE MB31 314Ah 12.05kWh LiFePO4 Battery Pack Kit with 200A Smart BMS
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36V EVE MB31 314Ah 12.05kWh LiFePO4 Battery Pack Kit with 200A Smart BMS

AUD $4,699.00 AUD $6,000.00 SAVE AUD $1,301.00

or $18.07/week with Humm — no deposit required

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5-Year Cell Warranty · 3-Year BMS Warranty Genuine matched EVE cells with full Australian warranty serviced from Yatala, QLD.
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Genuine EVE Cells
Brand new, matched, Grade A LiFePO4 cells direct from EVE.
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Complete DIY Kit
Cells, BMS, bus bars, wiring loom & nuts everything to build.
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Ships within 24 hours from our QLD warehouse.
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DESCRIPTION
DOCUMENT & VIDEOS
CUSTOMER REVIEWS
SPECIFICATIONS
RETURN AND REFUND POLICY
SHIPPING INFORMATION

36V (38.4V) EVE MB31 314Ah 12.05kWh LiFePO4 Battery Pack Kit with 200A JK Smart BMS

5 Year Warranty on Cells
3 Year Warranty on BMS

This Battery Pack is a 36Volt (38.4V) EVE MB31 314 (Ah) Amp Hour, 12.05 (KWh) Kilo Watt Hour.

This is a kit made up of:

  • 12 x 3.2v LiFePO4 EVE MB31 314ah cells
  • 1 x JK BMS 8S~24S 200A
  • 1 x 12S BMS balance wires
  • 11 x Copper Bus Bars
  • 11 x Ring Terminal Connectors
  • 12 x 6M nuts
  • 5A Parallel Module (Optional Extra)
  • 1A Active Balancer (Optional Extra)

Total Dimensions is approximately 173.5w x 209h x 864d (mm)
Dimensions for each cell is: 173.5w x 209h x 72.0d (mm)

Total Weight: 67.2kg
Each cell is 5.6kg

These are genuine MB31 314ah, Brand New, Matched cells.  Do not be fooled by cheap recycled batteries.  Buy from a local Australian Supplier with Australian backed warranty.

This kit is perfect for building your own power bank for caravans, RV's, Motorhomes or Off-Grid houses.   LiFePO4 are around half the weight as AGM or Lead Acid batteries with higher charge cycles.  They are also more stable than other Lithium Iron (Li-ion) batteries.

Please Note: Make sure you use a BMS (Battery Management System) with temperature sensor when connecting in series to ensure safety and longevity.

We also have 12V, 24V & 48V Packages available.

What is a Parallel Module?

What is an Active Balancer Module?

Before working with LiFePO4 cells please read our Product Safety Disclaimer


Customer Reviews

Based on 211 reviews
82%
(172)
18%
(39)
0%
(0)
0%
(0)
0%
(0)
Z
Zara E
Easy Setup

Simple to install and works great with my charge controller.

S
Sophia B
Better Than Expected

I had high hopes, and this battery still exceeded them.

Z
Zara E
Easy Setup

Simple to install and works great with my charge controller.

A
Annabelle P
Perfect for My Energy Needs

This battery is a game-changer for my setup.

E
Ethan G
Game-changer for off-grid living

Forget lead-acid�this is the way to go!

System Overview

System Voltage
36V
Battery Chemistry
LiFePO4

Installation & Warranty

Installation Type
DIY
Difficulty
Intermediate
Warranty
5 years (cells)
Total Weight
67.2kg
Compatibility Notes
Suits 36V inverter systems; Compatible with JK BMS

We have a 30-day return policy if the item is damaged or is not as described, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

To start a return, you can contact us at sales@lifepo4oz.com. If your return is accepted, we’ll provide instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

You can always contact us for any return question at sales@lifepo4oz.com.

If you change your mind, you may be eligible for a return, however the items must be unused and in their original packaging. Once returned to us, we will inspect the goods and, if approved, a 20% restocking fee will apply.


Damages and issues
If you receive any items which appear to be damaged, do not attempt to use them. Please inspect your order upon receipt and contact us immediately if the item is defective, damaged, or if you receive the wrong item, so that we can evaluate the issue and make it right.


Products damaged in transit
If you receive a shipment that has been damaged in transit, a replacement or refund may be provided, subject to the following conditions:

  • The return or damage claim must be made within 24 hours of receiving the shipment.
  • All shipments must be inspected for damage during the unloading process.
  • Clear photos of the damaged packaging and damaged product must be provided as evidence.
  • Photos must be taken during the unloading process.
  • Photos must clearly show all damage and, where possible, the likely cause of the damage.
  • The total approved claim value, including freight costs, will be credited to your account.

Exceptions / non-returnable items
We do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.


Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item. A 20% restocking fee will apply.


Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded to your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund.

All orders will be safely packed and shipped within 1 day.  All products are shipped via Road Freight only.

All efforts are made to ensure the products safe during transport, however if you receive an item which looks like it may have been damaged during tranport you must take a photo before trying to use the product.

Common Questions

Frequently Asked

1. Is this 36V 12.05kWh LiFePO4 battery kit suitable for caravans and off-grid use?

Yes. This kit is suitable for building your own power bank for caravans, RVs, motorhomes, and off-grid houses. Final suitability depends on your energy usage, inverter setup, and overall system requirements.

2. What is included in this battery kit?

This kit includes 12 x 3.2V EVE MB31 314Ah cells, 1 x JK BMS 8S–24S 200A, 1 x 12S BMS balance wires, 11 x copper bus bars, 11 x ring terminal connectors, and 12 x M6 nuts.

3. What is the total capacity of this battery pack?

This battery pack is rated at 38.4V nominal, 314Ah capacity, and 12.05kWh energy storage, configured as 12 cells in series.

4. Are these genuine EVE MB31 cells?

Yes. These are genuine MB31 Grade, brand-new matched cells — not cheap recycled batteries. This kit is sourced from a local Australian supplier with an Australian-backed warranty.

5. Is this a complete ready-to-use battery?

No. This is a DIY kit supplied unassembled. It includes the cells, BMS, balance wires, bus bars, terminal connectors, and nuts. A suitable battery enclosure and compatible system components are required separately.

6. How heavy is this kit and what are the dimensions?

Total weight is approximately 67.2kg, with each cell weighing 5.6kg. Total dimensions are approximately 173.5mm wide x 209mm high x 864mm deep. Each cell measures 173.5mm wide x 209mm high x 72mm deep.

7. What warranty is included?

This kit includes a 5-year warranty on cells and a 3-year warranty on the BMS.

8. Why choose LiFePO4 over AGM or lead-acid?

LiFePO4 batteries are around half the weight of AGM or lead-acid batteries, offer higher charge cycles, and are more stable than other lithium-ion batteries.

9. Do I need to use a BMS with a temperature sensor?

Yes. Always use a BMS with a temperature sensor when connecting cells in series to help ensure safety and longevity.

AUD $4,699.00
$18.07/wk Humm