SimpliPHI 1.4 kWh 24V Lithium Ferro Phosphate Battery (by Briggs & Stratton)

SimpliPHI 1.4 kWh LFP Battery 24 V – ABS packs the safety and longevity of Lithium Ferro Phosphate chemistry into a compact, lightweight module that’s perfect for smaller off-grid systems, RVs, marine and backup power. The tough ABS enclosure keeps weight and cost down while the internal protection electronics safeguard every cycle.

• 1.4 kWh usable capacity (≈56 Ah @ 25.6 V nominal) — up to 100% DoD
• Cobalt-free LiFePO₄ chemistry for maximum safety and thermal stability
• Designed for 10,000 cycles at 80% DoD; 10-year limited warranty
• High round-trip efficiency (≈98%) and very low self-discharge
• Integrated BMS provides cell balancing plus over/under-voltage, over-current and temperature protection
• Wide operating range: –4 °F to 140 °F (–20 °C to 60 °C)
• Parallel-ready: add more modules to expand capacity as needs grow
• Lightweight ABS housing with front-access terminals for quick installs
• Ideal for 24 V inverter/chargers, telecom gear, lighting, pumps and mobile applications
• Approx. dimensions & weight: 13.5″ W × 7.5″ H × 8″ D | ~40 lb

Compact, safe energy storage

LiFePO₄ cells eliminate cobalt and the risk of thermal runaway, so you can mount the battery indoors or in tight mobile spaces without special ventilation or cooling.

Smart protection built in

The integrated Battery Management System continuously monitors voltage, current and temperature to protect the pack and report accurate state of charge, ensuring long life and reliable performance.

Grows with you

Start with a single 1.4 kWh module and parallel additional batteries later—no need to replace what you already bought.

Light, durable ABS enclosure

The molded ABS case resists corrosion and vibration while keeping the unit easy to handle—great for vehicles, boats and remote sites where every pound matters.

Typical Applications

Cabins and sheds • RVs and camper vans • Marine house banks • Telecom and surveillance power • Backup for critical 24 V loads