Reserva — high-voltage LFP battery 6.3–15.8 kWh

Country: Austria · Model: Reserva

The Reserva home battery stacks 3.15 kWh modules into a high-voltage tower with 6.31, 9.47, 12.63 or 15.79 kWh of usable LiFePO4 capacity. Nominal voltage is 204.8–512 V, and the battery connects on the DC side to Primo GEN24 Plus, Symo GEN24 Plus and Verto Plus hybrid inverters.

Usable capacity: 6.31 / 9.47 / 12.63 / 15.79 kWh (2–5 modules of 3.15 kWh)
Nominal voltage: 204.8–512 V
Cell chemistry: lithium iron phosphate (LFP)
Max. current: 32 A

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Technical specifications

More from the manufacturer’s documentation
Usable capacity	6.31 / 9.47 / 12.63 / 15.79 kWh (2–5 modules of 3.15 kWh)
Nominal voltage	204.8–512 V
Cell chemistry	lithium iron phosphate (LFP)
Max. current	32 A
Parallel operation	up to 4 towers, up to 63 kWh
Ingress protection	IP65
Ambient temperature	−20…+55 °C
Dimensions / weight	860–1610 × 780 × 176 mm; 86.6–187 kg
Service life	more than 6,000 tested cycles
Compatible inverters	Primo GEN24 Plus, Symo GEN24 Plus, Verto Plus
Max. charge/discharge power	6.55 / 9.83 / 12.10 / 16.38 kW (Reserva 6.3 / 9.5 / 12.6 / 15.8)
Voltage range	185.6–227.2 V (6.3); 278.4–340.8 V (9.5); 371.2–454.4 V (12.6); 464–568 V (15.8)
Cell type	pouch cells
Battery efficiency	95 % (at 0.2C and 25 °C)
End-of-life criterion	60 % SOH (6,000 cycles at 0.5C)
Warranty	10 years; at least 80 % of capacity after 10 years
Max. altitude	2,000 m
Permissible humidity	5–95 %
Installation	indoor and protected outdoor areas
DC connection	Stäubli MC4-Evo stor (6 mm²)
Interface	RS485
Standards	IEC 62619:2022 (incl. thermal runaway test 7.3.3), CE, VDE 2510-50, IEC 62477-1, UN38.3
Battery module	3.15 kWh, 102.4 V; 250 × 772 × 176 mm; 25 kg
BMS / base	BMS 330 × 772 × 176 mm, 16 kg; base 60 × 772 × 176 mm, 3.5 kg
Backup power	backup power and black start capable (charges and discharges during a grid outage)
Indication	status display on the battery (state of charge, status)
Customs codes (for reference)
HS code	8507.60
UKTZED code (Ukraine)	8507600000
CN code (EU)	85076000

Specifications are taken from the manufacturer’s technical documentation. Updated 10/31/2026. Customs codes are for reference only; the final code is determined at customs declaration for the specific model.

Description

Paired with the Backup Controller or Backup Switch, the storage switches the house to backup power during a grid outage and can black start. The tower is built on a base together with a BMS unit, and one tower holds 2 to 5 modules of 25 kg each. Up to 4 towers run in parallel for up to 63 kWh. Maximum current is 32 A, inverter communication uses RS485, and the DC power cable is 6 mm² on Stäubli MC4-Evo stor connectors. The IP65 enclosure operates at ambient temperatures from −20 to +55 °C, indoors or in a sheltered outdoor spot. Dimensions are 860–1610 × 780 × 176 mm and weight is 86.6–187 kg depending on the number of modules. The maker states more than 6,000 tested cycles.

How to choose

Size the tower by inverter power and daily consumption. Peak charge and discharge power grows with the module count, from 6.55 kW on the Reserva 6.3 to 16.38 kW on the Reserva 15.8, so a 12 kW Symo GEN24 is best matched with a 12.6 or larger. If one tower must hold more than 15.79 kWh or carry more than 32 A, take the Reserva Pro, which scales to 31.9 kWh at 50 A.