Big Wei Slimline 12V 100Ah LiFePO4 Battery - AUS Made 4WD Camping SS12100S

BWB Slimline 12V 100AH Lithium LiFePO4 Battery Model SS12100S - AUS Made with Optional Bluetooth Connectivity

The BWB SS12100S is a compact and robust 12V 100Ah LiFePO4 battery, perfect for 4WD, camping and marine applications. Measuring just 37 x 12 x 19.2 cm and weighing 12.8 kg, its slimline design allows for easy installation in tight spaces without compromising performance.

Built for demanding environments, 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.

Main Features:

• Compact Design: Slim dimensions (37 x 12 x 19.2 cm) ideal for space-constrained setups.

• High Performance: Delivers up to 8000 life cycles with 90% usable capacity.

• Durable Construction: Encased in heavy-duty 304 stainless steel for enhanced durability.

• Advanced Protection: Equipped with JBD Battery Management System (BMS) for smart protection.

• Optional Bluetooth Monitoring: Monitor battery status in real-time with the available Bluetooth feature.

• Expandable: Can be connected in parallel with up to four units for increased capacity.

• Premium Cells: Built with 100% brand new A-grade prismatic GFB cells.

• High Current Handling: Supports up to 100A continuous charge/discharge current.

• Warranty: Backed by a 5-year warranty with lifetime free service.

Quick Specs:

BWB LiFePO4 Model No.: SS12100S
Nominal Voltage: 12.8V
Rated Capacity:  100Ah
Usable Capacity: 90%
Max. Charge Voltage: 14.6V
Max. Continuous Charge Current: 100A
Standard Continuous Charge Current: 50A
Max. Continuous Discharge Current: 100A
Standard Continuous Discharge Current: 50A
Operating Temperature: 0-55℃
Cut-off Voltage: 10V
Warranty:  5 years (Lifetime Free Service)
Weight: 12.8 kg
Dimensions: 37 x 12 x 19.2 cm (excl. terminals)

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.