Recharge tool and vehicle batteries, adjusting the current to the battery type.

Indoor energy storage system Pramac BSI 50/109
Also known as: BESS, battery energy storage system
Key features
- Rated apparent power (kVA)50
- Voltage400 Vac
- Frequency (Hz)50
- Maximum AC current (A)73
- Battery cellLi-Ion (LFP) Pouch type
- Total capacity109 kWh
What it is
Indoor energy storage system Pramac BSI 50/109. Key specifications: rated apparent power (kVA) 50, voltage 400 Vac, frequency (Hz) 50.
The energy storage system is a set of batteries, generally lithium, with management electronics, that stores the energy produced by a photovoltaic system or drawn from the grid and releases it when needed, for self-consumption or emergency use.
What it is for
Used in the installation and maintenance of residential and industrial electrical systems, for installing building services and plant and for emergency power on construction sites, at events and in plants.
How to use it
It is installed by a qualified electrician, in a dry, ventilated environment with the temperature within the stated limits, connecting it to the inverter and to the system according to the manufacturer's diagram. During operation, check the state of charge and the system messages, without opening the enclosures. At the end of their life, the batteries are handed over to an authorised centre.
Where it is used
- Renewable energy (solar PV)
- Building services
- Industrial plant engineering
Technical data
- Rated apparent power (kVA): 50
- Voltage: 400 Vac
- Frequency (Hz): 50
- Maximum AC current (A): 73
- Battery cell: Li-Ion (LFP) Pouch type
- Total capacity: 109 kWh
- Net rated capacity, 90% DoD: 98 kWh
- Module capacity: 4.74 kWh
- Module quantity: 23 n.
- Cycles at 90% DoD, 65% SoH: 7300 n.
Who it is for
Designed for electricians and solar PV installers.
Related products
- Indoor energy storage system Pramac BSI 50/218
- Outdoor energy storage system Pramac BSO PRO 90/109
- Fast battery charger Petzl — from the category Battery Chargers
- Kit, 2 XR 18V 5Ah batteries + charger, DeWalt DCB1104P2-QW — from the category Power Tool Batteries and Chargers
- Beton chemical descaler Chemical Roadmaster — from the category Construction and Solar PV
- Browse the whole category: Batteries
Before you order
In your request, please state the supply voltage, the power rating and the quantities required, so we can give you the right quotation first time.
For prices and availability, request a quote from AMES Srl: we will reply with our quotation, delivery times and, where needed, an equivalent technical alternative.
Specifications 10
| Rated apparent power (kVA) | 50 |
|---|---|
| Voltage | 400 Vac |
| Frequency (Hz) | 50 |
| Maximum AC current (A) | 73 |
| Battery cell | Li-Ion (LFP) Pouch type |
| Total capacity | 109 kWh |
| Net rated capacity, 90% DoD | 98 kWh |
| Module capacity | 4.74 kWh |
| Module quantity | 23 n. |
| Cycles at 90% DoD, 65% SoH | 7300 n. |
The perfect setup for this job
Everything you need in one place, from functionality to safety.
For the job
Bring power to site tools through protected connections, including outdoors.
Distribute power on site and protect people and tools from overloads and earth leakage.
Connect, protect and distribute power in electrical installations and household supplies.




