Fronius Reserva PRO Module 3.98 kWh - Battery Control Unit

Payment
You can pay for your order by bank transfer, in Hungarian Forints or Euros. Cash on delivery is available for orders up to HUF 500,000, with a handling fee of HUF 4,990. For orders over HUF 500,000, only bank transfer is accepted. The proforma invoice will be sent to you by email, containing the details required for the transfer.

Shipping
We deliver your orders throughout Hungary with the help of our reliable logistics partners or our own transport. Personal pickup is possible by prior arrangement. Shipping costs are determined based on the size, weight, and type of the ordered product:

• Small package: HUF 3,790
• Large package: HUF 6,490
• Solar panels and batteries: custom shipping fee (based on size, weight, and quantity)

The Fronius Reserva PRO Module is a 3.98 kWh usable capacity battery module for the high-voltage Reserva PRO energy storage system. It uses lithium iron phosphate cell technology, with a nominal voltage of 70.84 V and an operating voltage range of 55–80.3 V.

The module cannot be used independently. A complete system requires a Reserva PRO BMS, a base unit, and at least three battery modules. A system can be built with a maximum of eight modules. The required number of modules must be determined based on the battery-side voltage range of the connected Fronius inverter and the desired storage capacity.

The entire battery system is IP65 rated and can be installed indoors or in a protected outdoor location. Its operating temperature range is –20 to +50 °C, with a 10-year warranty guaranteeing 80% battery state of health.

Key data
Usable energy: 3.98 kWh
Cell technology: LiFePO₄
Nominal voltage: 70.84 V
Operating voltage: 55–80.3 V
Number of modules in a system: 3–8 units
Dimensions: 160 × 570 × 440 mm
Weight: 36 kg
Cannot be used independently