Set consisting of 48 MVSV 2V 280Ah gel cells, supplied in 2 transport crates. It allows 12V, 24V, 48V or 96V battery banks to be configured by means of series and parallel connections.
This set comprises 48 MVSV gel cells, each with a nominal voltage of 2V and a capacity of 280Ah at the C10 rate. It is intended for large-capacity stationary systems requiring autonomy, continuous operation and flexibility to adapt the battery bank to the electrical requirements of the installation.
Connecting the 48 cells in series gives a 96V, 280Ah bank. They can also be arranged in series-parallel configurations to operate at lower voltages and increase the available capacity:
- One string of 48 cells: 96V and 280Ah.
- Two strings of 24 cells in parallel: 48V and 560Ah.
- Four strings of 12 cells in parallel: 24V and 1,120Ah.
- Eight strings of 6 cells in parallel: 12V and 2,240Ah.
In a series connection the voltages are added and the capacity remains the same. In parallel the voltage remains the same and the capacities are added. To ensure balanced operation, all strings must contain the same number of cells and use units of the same range, model, capacity and state of charge. New cells must not be mixed with used units.
Valve-regulated lead-acid technology keeps the electrolyte immobilised in gel and requires no water topping up. The cells can be installed in a vertical or horizontal position, always with the same orientation throughout the bank. When installed horizontally, each unit must rest individually on a suitable rack along its entire surface.
The 48 cells are supplied in 2 transport crates.
Main features
- Set of 48 gel cells from the MVSV range.
- 96V, 280Ah configuration by connecting all cells in series.
- Option to configure 48V/560Ah, 24V/1,120Ah or 12V/2,240Ah banks.
- Flexible connection via series and parallel configurations.
- Valve-regulated lead-acid technology.
- Electrolyte immobilised in gel.
- No need for water topping up.
- Installation permitted in vertical or horizontal position.
- Suitable for large-capacity stationary systems.
- Approximate self-discharge of 2% per month at 20°C.
- Supplied in 2 transport crates.
Technical specifications
- Range: MVSV.
- Technology: valve-regulated lead-acid with gel electrolyte.
- Number of cells: 48.
- Nominal voltage per cell: 2V.
- Nominal capacity per cell: 280Ah at C10, down to 1.8V per cell at 20°C.
- C10 discharge current per cell: 28A.
- Series configuration of the 48 cells: 96V and 280Ah.
- Typical alternative configurations: 48V and 560Ah; 24V and 1,120Ah; 12V and 2,240Ah.
- Number of terminal pairs per cell: 1.
- Internal resistance per cell: 0.79m?.
- Short-circuit current per cell: 2700A.
- Float voltage: 2.30V per cell at 25°C.
- Absorption voltage: 2.38V per cell at 25°C, for a maximum of 5 hours.
- Temperature charge compensation: ?5mV/°C per cell.
- Recommended charge current: between 10A and 50A per 100Ah of nominal capacity.
- Operating temperature: from ?20°C to 45°C.
- Nominal operating temperature: from 10°C to 30°C.
- Recommended operating temperature: 20°C.
- Absolute maximum temperature: 55°C.
- Storage temperature: from ?40°C to 55°C.
- Maximum dimensions per cell: 126 × 208 × 399mm.
- Case height without terminals: 357mm.
- Installed length per cell: 135mm.
- Approximate weight per cell: 23kg.
- Approximate total weight of the 48 cells: 1,104kg.
- Terminals: F-M8.
- Tightening torque for M8 connections: 20 ± 1Nm.
- Case material: styrene-acrylonitrile copolymer.
- Case flammability rating: UL 94 HB.
- Recommended minimum spacing between cells: 10mm.
- Recommended maximum temperature difference between cells: 3°C.
- Installation position: vertical or horizontal.
- Approximate self-discharge: 2% per month at 20°C.
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