About BWB LiFePO4 Batteries

What is the warranty for BWB LiFePO4 Battery?



Big Wei Battery warrants BWB LiFePO4 Battery to be free of defects in material and workmanship for the applicable 3-year warranty period.  Warranty is only given to the original purchaser of this product.  The warranty does not extend to subsequent purchasers or users. The 3-year warranty period starts from the date of the original purchase of the product.

The maximum liability of Big Wei Battery under this limited warranty shall not exceed the actual purchase price of the product.


We provide a warranty against defects for the period and application as detailed in this manual.  If you are experiencing any problems with your LiFePO4 Battery unit, you may call (07) 3090-3637 or visit us at our shop address located at Unit 4, 17 Moss St., Slacks Creek, QLD 4127 before returning the product to our business office.  The battery will be tested as per our test procedure. Proof of purchase is required during the claim.  Big Wei Battery will repair or replace any of the battery parts free of charge if found valid. The warranty excludes defects from after-sale damage, abuse, incorrect installation, or neglect. The benefits of this warranty are in addition to any other rights and remedies available at law. Costs of transportation to and from the Big Wei Battery shop will be shouldered by you. Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.


This warranty does not cover damage or defects resulting from normal wear and tear including scratches, abrasions, chips, dents caused by mishandling, accidents, damage during shipping to our business office, unauthorized use or repair, continued use of battery even after it has stopped operating or malfunctioned, alterations, neglect, abuse, misuse, failure to follow recommended proper care and maintenance, acts of god, fire and flood. The natural capacity decrease is not supported within the 3-year warranty period.


We offer Free Lifetime Service. So, whether it’s still under warranty or beyond the warranty period, our service is Free.  You will only have to pay for the parts or materials that need to be replaced when the product is beyond warranty.


Write us an email to infoezshappy@gmail.com and include the following:

  1. Full details of alleged defect or fault and the circumstances surrounding the defect or fault
  2. Provide relevant evidence of the claim, including photographs of the product installed and associated system wiring
  3. Provide proof of purchase and payment


Please DO NOT OPEN the battery box for whatever reason without our authorization as it will VOID the warranty and we are not responsible for any DAMAGE/s it may cause.  These batteries are NOT designed for, nor should be fitted into an engine bay due to high heat.  Damage may occur and is not covered by BWB LiFePO4 Battery Warranty.


Where are your LiFePO4 batteries made?

BWB LiFePO4 batteries are built in Australia. Major battery components are sourced directly from only the best manufacturers with reputable background and experience. This means you will be buying the best quality product for your lithium battery needs.

Our BWB lithium Iron LiFePO4 battery technology will provide you with up to 3000 cycles for Electric Vehicles & up to 8000 cycles for Electronic Storage Systems still provide over 80% of usable capacity.

We are located in Brisbane City, Queensland, Australia.  Our company is dedicated to sell products that are high quality and affordability. 


Watch our BWB LiFePO4 Battery Video!  This is Dangar Marine upgrading to lithium (LiFePO4) for their boat.