Energy storage units ULTRA-5 51.2V 280Ah 200A [14336Wh] 6AES510028

Increase energy independence and optimize electricity consumption

The device with a capacity of 14336 Wh (51,2 V, 280 Ah) is a solution dedicated to storing surplus energy from photovoltaic installations. It works on the principle of buffering electricity produced during the day to make it available during peak consumption hours – in the morning and evening, when sunlight is insufficient. Thanks to this, a household or commercial facility (restaurant, hotel, warehouse) can significantly reduce energy intake from the grid and become independent of its costs.

Chemical safety and long service life

The heart of this storage unit consists of lithium iron phosphate (LiFePO4) cells. The choice of this chemistry is not accidental – it provides a significantly higher level of thermal safety compared to other types of lithium cells and guarantees an extremely high number of charge cycles. The device is designed for approximately 6000 cycles, which in practice means the possibility of many years of use while maintaining at least 60% of the original capacity. This is crucial for an investment intended to serve stably for years, not just for a season.

The Battery Management System (BMS) actively monitors key operating parameters: the voltage of each module, current intensity, and temperature. In the event of an anomaly – e.g., excessive discharge, overcharge, or extreme temperatures – the BMS automatically disconnects the circuit or limits operation, protecting the entire installation from damage.

Expansion flexibility and universal application

The device's design was conceived with future system expansion in mind. Thanks to its modular construction, units can be connected in parallel (up to 16 units), allowing the total storage capacity to increase as the energy demand in the home or company grows. However, it should be noted that connecting in series is not permitted for this model.

Small dimensions (680 x 412 x 231 mm) and a modern design allow for the installation of the device inside a building – in a garage, boiler room, or even in a dedicated technical cabinet without the need to build an external anti-theft enclosure. However, a weight of approx. 85 kg requires appropriate preparation of the surface during static installation.

Key benefits in practice:

• Cost optimization: Store cheap solar energy for use in the evening, when electricity rates are higher or consumption exceeds PV production.
• LiFePO4 chemistry safety: These cells are less prone to thermal runaway than other lithium types, increasing safety for use in enclosed spaces.
• Longevity: Assuming an average of 1 cycle per day, the device can work effectively for over 15 years before capacity drops below the utility threshold.
• Scalability: The possibility of connecting additional units in parallel allows the system to be adapted to changing energy needs without replacing the entire device.
• Versatility: It will work well in both single-family houses and public utility facilities with high demand for reserve or autonomous energy.

Operating conditions and installation details

The basic electrical parameters of the device are a rated voltage of 51,2 V and a nominal capacity of 280 Ah, providing a total energy of approx. 14336 Wh. The device supports a maximum charge and discharge current of 200 A; therefore, during installation, appropriate wire cross-sections should be ensured to minimize power losses and the risk of cable overheating. The recommended charging voltage is 57,6 V with a maximum threshold of 58,5 V.

Regarding the physical construction, it is worth noting the dimensions of 680 x 412 x 231 mm and a net weight of approximately 85 kg (+/-5%). The device operates correctly in an ambient temperature from -20°C to +55°C (recommended operating conditions), making it suitable for installation in