Big Wei Slimline 12V 100Ah LiFePO4 Battery - AUS Made Marine & Boat Series SP12100
- Description
- Specifications
- Find my kit
- Why Buy from Buzz?
- Shipping
- Disclaimer
Big Wei Slimline 12V 100AH Lithium LiFePO4 Battery Model SP12100 - AUS Made Marine & Boat Series with Optional Bluetooth Connectivity
Upgraded 12V 100AH LiFePO4 batteries can be connected in series to make a 36V bank perfect for your boat
Built for demanding environments, our BWB LiFePO4 batteries feature A-Grade GFB prismatic cells and a reliable JBD BMS. Each cell is cushioned with double-coated 3M foam tape for shock absorption, secured with fibreglass tape, and insulated using high-quality epoxy resin boards. Additional foam padding on the sides and base helps protect against vibration and heat — making these batteries ideal for 4WD, marine, and off-road applications
Main Features:
Lifetime free service
Up to 8000 life cycles
JBD BMS smart protection
Bluetooth option available
Can be connected in parallel up to 4
100% Brand new A-grade Prismatic GFB cells
MAX. 100A continuous charge/discharge current
Quick Specs:
-
BWB LiFePO4 Model No.: SP12100
-
Nominal Voltage: 12.8V
-
Rated Capacity: 100Ah
-
Usable Capacity: 90%
-
Max. Charge Voltage: 14.6V
-
Max. Continuous Charge Current: 100A
-
Max. Continuous Discharge Current: 100A
-
Operating Temperature: 0-55℃
-
Cut-off Voltage: 10V
-
Warranty: 5 years (Lifetime Free Service)
-
Weight: 11.6 kg
-
Dimensions: 39.4 x 10.3 x 28.6 cm
Why Chose LiFePO4 Batteries?
Longer Lifespan
Up to 3,000–5,000+ cycles (compared to 500–1,000 for lead-acid).
Can easily last 10+ years with proper care.
More cycles = better return on investment.
Deep Discharge Capable
Can regularly discharge to 80–90% Depth of Discharge (DoD) without damage.
Lead-acid prefers only 50% DoD for longevity.
Higher Efficiency
Charge/discharge efficiency around 95–98% (vs. ~80–85% for lead-acid).
More of your solar power is usable.
Lightweight & Compact
About 1/3 the weight of equivalent lead-acid batteries.
Easier to transport, mount, and install.
Built-in Battery Management System (BMS)
Most LiFePO₄ batteries come with a BMS for overcharge, over-discharge, short circuit, and thermal protection.
Safer and smarter.
Stable Chemistry = Safer
Unlike other lithium chemistries, LiFePO₄ is thermally and chemically stable, reducing fire risk.
Ideal for residential, RV, and marine applications.
Low Maintenance
No need to water them like flooded lead acid.
Can sit idle with minimal self-discharge (~2–3% per month).
Better in Partial Charge States
No need for full charges to maintain health (unlike lead acid which can sulfate).
Perfect for solar, where full charging isn’t always guaranteed.
About The Brand:
BigWei has operating in Brisbane, Australia since 2017 and provides high-quality batteries for cars, trucks, automobiles, motorcycles, and boats/marine. Big Wei specialise in deep cycle batteries for solar power system needs and we are proudly producing their very own Lithium Iron Phosphate (LiFePo4) batteries.
Interested in starting your solar journey, but need some help in deciding what is the best system for your needs, free and without obligation?
Start by CLICKING HERE
We'll be glad to assist you, in achieving Energy Independence... Your Way.
Yep, we know... there are lots of options when buying products online.
We also believe in providing you with only the highest quality products, combined with exceptional customer service.
How You Win:
- Free shipping Australia wide on most orders
- Most competitive prices available
- Pre and after sales Technical Support
- 30 Day Easy Returns Policy
We offer Free Shipping on most products, however some custom orders and heavy/bulky items may require specialised freight to some destinations, incurring additional cost.
We want to be upfront. Nobody like nasty surprises and we strive to give you the best value. In these instances, we will contact you before processing the order to determine the fastest and most cost effective way of getting your items delivered.
If you decide that doesn't work for you, no biggie....we'll try to work out a suitable alternative or cancel and refund your order in full.
Important Disclaimer: Installation of Hardwired Electrical Products in Australia
Please read the following information, including the disclaimer at the bottom of this page;
by purchasing from Buzz Energy Systems, you understand and acknowledge these terms.
When it comes to the installation of hardwired electrical products in Australia, it is important to be aware of the regulations and guidelines in place to ensure safety and compliance.
As per the Electrical Safety Act, installations operating at ELV (Extra Low Voltage) levels of 60 volts and below can be installed by individuals with the necessary knowledge and skills.
However, it is crucial to note that installations operating above ELV levels require the expertise of licensed electricians and experienced installers. Products falling under this category are not suitable for DIY (Do-It-Yourself) installation and must be handled by professionals. Attempting to install such products without the proper qualifications can not only compromise performance but also invalidate any manufacturer's warranties.
At Buzz Energy Systems, we recognise the importance of reliable and efficient installations that prioritise safety, performance and warranty compliance. Our team consists of qualified tradespeople and specialists who are equipped with the expertise required to handle complex electrical installations.
For installations that operate above ELV levels, we strongly advise against DIY installation. Instead, we recommend seeking professional assistance from licensed electricians and experienced installers to ensure the proper installation and optimal performance of such products.
When it comes to installing hardwired electrical products above ELV levels, rest assured that Buzz Energy Systems can provide the necessary qualified tradespeople and specialists. Our professional installation services guarantee compliance with regulations, the preservation of manufacturers warranties and most importantly, your safety.
Do not compromise on the installation of your hardwired electrical products. Trust Buzz Energy Systems for a professional and hassle-free experience.
Contact us today for advice or to schedule your installation with our qualified team.
Legal Indemnity Disclaimer
By engaging with Buzz Energy Systems, purchasing and utilising our products and services, you acknowledge and agree to the following indemnity disclaimer. This disclaimer covers any potential claims for death, injury, property damage, financial loss, or warranty claims:
Assumption of Responsibility: Buzz Energy Systems shall not be responsible or liable for any consequences arising from the installation, operation or use of our products or services, excluding any rights or remedies you may have under the Australian Consumer Law or other applicable legislation. You, as the user or purchaser, assume full responsibility for any potential risks, damages, or losses that may occur, including those not covered under Australian Consumer Law.
Proper Installation and Use: It is your responsibility to ensure that the installation, operation, and use of our products align with relevant laws, regulations, and safety guidelines. We strongly recommend seeking the expertise of licensed professionals to handle installations above ELV levels and to ensure compliance with all applicable codes and standards.
Personal Injury and Property Damage: Buzz Energy Systems shall not be held liable for any injuries, damages, or losses caused by improper installation, operation, or maintenance of our products. You agree to indemnify and hold Buzz Energy Systems harmless from any liability in relation to personal injury or property damage resulting from the use of our products or services.
Financial Loss: Buzz Energy Systems shall not be liable for any financial loss, including but not limited to direct or indirect loss of profits, revenue, or savings, arising from the use or inability to use our products or services. Any costs associated with repairs, replacements, or damages incurred fall under your responsibility.
Warranty Claims: Buzz Energy Systems provides manufacturer warranties on our products, subject to the terms and conditions outlined in the accompanying documentation. However, we shall not be held liable for any warranty claims resulting from improper installation, operation or maintenance of our products. Warranties may become void if our products are not installed or used in accordance with supplied instructions or if unauthorised modifications or repairs are made.
Independent Advice: It is recommended that you seek independent advice, particularly legal or professional guidance, to assess the suitability of our products and services for your specific requirements.
By engaging with Buzz Energy Systems, you acknowledge and voluntarily assume all risks associated with the installation, operation, and use of our products and services. This disclaimer extends to any third parties who may be affected by the use of our products or services.
Please note: This indemnity disclaimer is intended to be a general statement of our position and should not be interpreted as a comprehensive legal contract. We recommend seeking legal advice to draft and review any specific agreements or contracts related to the use of Buzz Energy Systems' products and services.