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The FIRMAN 5kWh 25.6V Lithium Battery (model B2520002) is a high-performance LiFePO4 (Lithium Iron Phosphate) energy storage solution designed for 24V inverter systems. It is commonly marketed as the "PentaWall" or "Wall Lithium Battery" and is widely available from retailers like Sumec Plaza and Zit Nigeria
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(edit with the Customer Reassurance module)
(edit with the Customer Reassurance module)
The FIRMAN 5kWh 25.6V Lithium Battery (model B2520002) is a high-capacity energy storage unit specifically designed for 24V solar and inverter systems. Marketed under the PentaWall series, it is a wall-mounted solution intended for residential or small office backup power.
Technical Specifications
According to manufacturers and retailers like Sumec Plaza and Zit Nigeria, the battery features the following parameters:
Model Number: B2520002
Nominal Energy: 5.12kWh (5120Wh)
Nominal Capacity: 220Ah
Rated Voltage: 25.6V (compatible with 24V inverter systems)
Charging Voltage: 27.6V – 28.8V
Max Charge/Discharge Current: 150A (continuous)
Weight: 50.4kg
Dimensions: Designed for space-saving wall-mount installation
Key Features & Performance
LiFePO4 Chemistry: Uses Lithium Iron Phosphate cells, which are widely regarded as the safest and most stable lithium technology.
Long Cycle Life: Rated for 6,000 cycles at 80% Depth of Discharge (DoD), which translates to an estimated 15-year service life under standard conditions.
Intelligent BMS: Features a built-in Battery Management System that monitors temperature, voltage, and current to prevent overcharging, short circuits, and overheating.
Scalability: Supports parallel connection of up to 6 units, allowing you to expand your total storage capacity to 30.72kWh as your power needs grow.
LCD Display: Includes an integrated screen for real-time monitoring of battery status, current, and voltage levels.
Warranty and Availability
The battery typically comes with a 6-year warranty. It is available through several Nigerian retailers, including Sumec Plaza, Zit Nigeria, and Ifesolox.
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Brand: FIRMAN
The FIRMAN 5kWh 25.6V Lithium Battery (model B2520002) is a high-performance LiFePO4 (Lithium Iron Phosphate) energy storage solution designed for 24V inverter systems. It is commonly marketed as the "PentaWall" or "Wall Lithium Battery" and is widely available from retailers like Sumec Plaza and Zit Nigeria
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