Description

SAJ B2-25.0-HV1 is a high-voltage LiFePO4 battery system made of one BC2-HV1 control module and five BU2-5.0-HV1 battery modules: 25.0 kWh rated energy, 22.5 kWh usable energy, 512 V nominal voltage. It works only as a set with a SAJ H2 series storage inverter.

SAJ B2-25.0-HV1

  • One BC2-HV1 control module and five BU2-5.0-HV1 battery modules: 25.0 kWh rated energy and 22.5 kWh usable energy, 90 % depth of discharge.

  • 512 V nominal voltage and 15360 W rated power; maximum charge and discharge current 30 A.

  • IP65; ground mounting or optional wall mounting; charging at 0 to 50 °C, discharging at -10 to 50 °C.

  • One B2 stack holds one to five BU2-5.0-HV1 modules on one BC2-HV1, 5.0 to 25.0 kWh rated energy.

30 A charge and discharge current.

Maximum charge current and maximum discharge current are 30 A. Rated power is 15360 W at 512 V nominal voltage; the operating voltage is 448 to 576.0 V.

IP65, on the ground or on the wall.

Ingress protection is IP65 and cooling is by natural convection. The stack is mounted vertically, on the ground or optionally on a wall, indoors or outdoors, with 50 cm clearance above, on both sides and in front. An indoor or sheltered place is suggested, away from direct sunlight, rain and snow.

One control module, five battery modules.

SAJ BU2-HV1

One control module, five battery modules.

The BC2-HV1 control module is the top unit of the stack and carries the circuit breaker, the display, the start button and the battery and communication ports to the inverter. Below it: 5 × BU2-5.0-HV1, each with 32S1P cells, 102.4 V and 50 Ah. Control module and battery modules together measure 1505 × 626 × 365 mm (H × W × D) and weigh 263.5 kg.

Technical data

B2-25.0-HV1 in figures

Rated energy
25.0 kWh
Usable energy
22.5 kWh
Max. charge and discharge current
30 A
Ingress protection
IP65
About these specifications

25.0 kWh rated energy at 512 V nominal voltage.

Five BU2-5.0-HV1 battery modules under one BC2-HV1 control module: 25.0 kWh rated energy, 22.5 kWh usable energy, 15360 W rated power, 448 to 576.0 V operating voltage and 30 A maximum charge and discharge current.
Battery system
Battery module
BU2-5.0-HV1 (32S1P, 102.4 V, 50 Ah)
Number of modules
5
Rated energy
25.0 kWh
Usable energy
22.5 kWh
Rated power
15360 W
Dimensions of the battery modules (H × W × D)
1305 × 626 × 365 mm
Weight of the battery modules
252.5 kg
Nominal voltage
512 V
Operating voltage
448 to 576.0 V
Max. charge current
30 A
Max. discharge current
30 A

Documents

SAJ B2 Series (5.0-25.0) HV1/HV5 Battery Datasheet (EN, BEU)Datasheet · PDF · ENSAJ B2 high-voltage battery, B2-5.0 to B2-25.0 with BU2-5.0 and BC2-HV1: datasheet (German)Datasheet · PDF · DESAJ B2 HV1/HV5 battery datasheet (EN, AU)Datasheet · PDF · ENSAJ B2 Series (5.0-25.0) HV1/HV5 High Voltage Battery User Manual (EN)Manual · PDF · ENSAJ B2 battery systems and BC2-HV1 control module: EU declaration of conformity (multilingual)Certificate · PDF · MultilingualSAJ B2 battery systems and BU2-5.0 battery modules: EU declaration of conformity (multilingual)Certificate · PDF · Multilingual

Product questions

Which inverter does the B2-25.0-HV1 work with?

The B2-25.0-HV1 can only be used as a set with SAJ's H2 high voltage series storage inverter.

How tall and how heavy is the assembled B2-25.0-HV1?

The assembled B2-25.0-HV1 (Battery Control Unit + Battery Unit) is 1505*626*365 mm (H*W*D) and weighs 263.5 kg.

Where and how is the stack installed?

The stack is installed either on the ground or on a wall. Mount it vertically; never install it tilted forwards, sideways, horizontally or upside down. For wall mounting, use a solid wall; cavity walls and timber walls are not allowed.

Compatibility records

SAJ H2-10K-T3 (10 kW three-phase hybrid inverter)SAJ H2-10K-T3 (10 kW three-phase hybrid inverter)Item number DLK-SAJ-H210KT3Documented by SAJSAJ H2-12K-T3 (12 kW three-phase hybrid inverter)SAJ H2-12K-T3 (12 kW three-phase hybrid inverter)Item number DLK-SAJ-H212KT3Documented by SAJSAJ H2-15K-T3SAJ H2-15K-T3Item number DLK-SAJ-H215KT3Documented by SAJSAJ H2-20K-T3SAJ H2-20K-T3Item number DLK-SAJ-H220KT3Documented by SAJSAJ H2-25K-T3SAJ H2-25K-T3Item number DLK-SAJ-H225KT3Documented by SAJSAJ H2-30K-T3-DESAJ H2-30K-T3-DEItem number DLK-SAJ-H230KT3DEDocumented by SAJ

SAJ's Configuration Instructions V1.0 (Section 2) give the H2 series system as H2 + BC2 + BU2. SAJ's B2 datasheet names B2-5.0 to B2-25.0 as one to five BU2-5.0 modules with one BC2-HV1 control module, and SAJ's B2 manual (V1.2, PDF p5) says the B2 can only be used as a set with SAJ's H2 high voltage series storage inverter. The listing does not cover the one-module B2-5.0, whose operating voltage lies below the H2 T3's battery voltage range.

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