SAJ B2-5.0-HV1
Description
50 A high-current discharge with enhanced thermal dissipation.
SAJ B2-5.0-HV5 is a high-current 5.0 kWh high-voltage LFP battery tower delivering up to 50 A continuous discharge (5 kW output from a single brick), engineered for heavy heat pump startup loads and SAJ H2 inverter pairing.
50 A High-Current Power Output (5 kW)
Delivers 66% more continuous power than standard 30 A modules, driving heavy motor loads from a single module.
Heavy-Duty High-Capacity Cells (52.5 kg)
Built with enhanced thermal cooling channels to sustain continuous 50 A cycling without overheating.
Cable-Free Direct Modular Stacking
Internal busbar terminals eliminate external high-voltage DC wiring and simplify maintenance.
Expandable up to 25 kWh (50 A)
Add up to 4 additional HV5 bricks on top of this exact stack to expand storage as household energy needs grow.
More product details
Delivering high continuous discharge generates thermal stress inside battery cells. The B2-5.0-HV5 incorporates enhanced internal cooling channels and heavy copper interconnects to sustain 50 A continuous power.
- Delivers up to 5 kW continuous DC discharge per single module (102.4 V @ 50 A).
- Heavy-duty 52.5 kg chassis provides robust thermal mass and structural heat dissipation.
- Cell-level thermal sensors and active balancing prevent localized degradation across thousands of daily cycles.
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4 models
Usable energy
4.8 kWh
9.6 kWh
14.4 kWh
19.2 kWh
Nominal energy
5.0 kWh
10.0 kWh
15.0 kWh
20.0 kWh
Nominal voltage
102.4 V
204.8 V
307.2 V
409.6 V
Max. charge current
30 A
30 A
30 A
30 A
Max. discharge current
30 A
30 A
30 A
30 A
Ingress protection
IP65
IP65
IP65
IP65
Weight
52.5 kg
105 kg
157.5 kg
210 kg
Low-profile floor column with multi-year expansion headroom.
Standing on its heavy-duty base pedestal, this 1-module tower delivers extreme energy density while leaving vertical headroom to add up to 4 additional modules later. Heavy-duty floor pedestal isolates power modules from ground moisture and standing cellar condensation. Expandable up to 5 modules (25.0 kWh) by simply stacking additional BU2-5.0-HV5 bricks on top. IP65 weatherproof enclosure certified for unheated basements, technical utility rooms, and sheltered outdoor alcoves.
30 A charge and discharge.
Current stays at 30 A from the first HV5 brick through a full column.
IP65 outdoor module.
Charge 0-50 C, discharge -10-50 C, CAN to the hybrid.
Technical data
High-throughput energy storage engineered for heavy domestic electrification and commercial H2 systems.
50 A high-current discharge starting tower delivering 5 kW power from a single brick.
Upgraded to 50 A high-throughput cell architecture, this 5.0 kWh B2-HV5 tower delivers up to 5,000 W of continuous battery power from a single module. Sized for homes needing high instantaneous power in a compact footprint, it pairs seamlessly with SAJ HS2 and H2 hybrid inverters without current throttling.
- Nominal Storage
- 5.0 kWh
- High-Voltage Bus
- 102.4 V
- High-Rate Throughput
- 50 A
- All-Weather Build
- IP65
Type & Configuration
- Type
- High-voltage residential battery system, B2 Series (HV5)
- Battery module
- BU2-5.0-HV5 (32S1P, 102.4 V / 50 Ah)
- Control module
- BC2-HV1 (as printed in the HV5 table)
- Control module dimension (H x W x D mm)
- 220 x 626 x 365
- Control module weight (kg)
- 11
Energy & Electrical
- Number of modules
- 1
- Rated energy (kWh)
- 5.0
- Usable energy (kWh)
- 4.8
- Rated power (W)
- 3072
- Nominal voltage (V)
- 102.4
- Operating voltage (V)
- 89.6 - 115.2
- Max. charge current (A)
- 30
- Max. discharge current (A)
- 30
Mechanical
- Module stack dimension (H x W x D mm)
- 261 x 626 x 365
- Module stack weight (kg)
- 52.5
- Control module dimension (H x W x D mm)
- 220 x 626 x 365
- Control module weight (kg)
- 11
Environment
- Ingress protection
- IP65
- Protection class
- I
- Mounting
- Wall-mounted (optional) / ground-mounted
- Operating temperature range
- Charging 0 ~ 50 C; discharging -10 ~ 50 C
- Ambient humidity
- 0 ~ 95% non-condensing
- Cooling method
- Natural convection
- Communication
- CAN
Project fit
Where this model fits.
Scenarios that show which projects the SAJ B2-5.0-HV5 belongs in, what to verify before quoting, and when another model is the better pick.
Project scenario
Small Footprint Projects Requiring High Instantaneous Power (5 kW Output)
Homes with compact utility space running an electric heat pump or domestic workshop machinery that demand 5 kW instantaneous discharge from a single 5 kWh pack.
50 A continuous discharge delivers full 5 kW power from a single brick, whereas standard 30 A modules are limited to ~3 kW.
- BoundaryIf the household requires overnight storage capacity (> 8 kWh), step up to the 10.0 kWh (2-module) tower. ---
What Linker confirms with you
- If the household requires overnight storage capacity (> 8 kWh), step up to the 10.0 kWh (2-module) tower. ---
Documents
SAJ B2 HV1 / HV5 Series high-voltage battery datasheet (AU, EN) SAJ B2 Series (5.0-25.0) HV1/HV5 Battery Datasheet (EN, AU)Product questions
Why choose the B2-5.0-HV5 over the B2-5.0-HV1?
HV5 delivers 5 kW continuous discharge (50 A); HV1 delivers 3 kW (30 A). * B2-5.0-HV1: Standard 30 A residential tower (max output ~3 kW per module). * B2-5.0-HV5: High-throughput 50 A tower (max output ~5 kW per module), specifically designed to pair with SAJ H2 inverters and drive high-inrush heat pumps.
What is the total assembled height and weight of this 1-module HV5 tower?
522 mm height; ~63.5 kg total weight. * Total Height: 522 mm (626 mm wide × 365 mm deep). * Total Weight: 63.5 kg (approx. 140 lbs).
Approved pairings
SAJ CH3-100K-T8Item number DLK-SAJ-CH3100KT8CB3-L261 and CB3-M20, through the CB3-HVC high-voltage cabinet. SAJ's CB3 datasheet states it directly: the battery is compatible with SAJ CH2 and CH3 series inverters. 60 to 260 kWh per cluster.
SAJ CH3-110K-T8Item number DLK-SAJ-CH3110KT8CB3-L261 and CB3-M20, through the CB3-HVC high-voltage cabinet. SAJ's CB3 datasheet states it directly: the battery is compatible with SAJ CH2 and CH3 series inverters. 60 to 260 kWh per cluster.
SAJ CH3-125K-T8Item number DLK-SAJ-CH3125KT8CB3-L261 and CB3-M20, through the CB3-HVC high-voltage cabinet. SAJ's CB3 datasheet states it directly: the battery is compatible with SAJ CH2 and CH3 series inverters. 60 to 260 kWh per cluster.
SAJ CH3-75K-T6Item number DLK-SAJ-CH375KT6CB3-L261 and CB3-M20, through the CB3-HVC high-voltage cabinet. SAJ's CB3 datasheet states it directly: the battery is compatible with SAJ CH2 and CH3 series inverters. 60 to 260 kWh per cluster.
SAJ CH3-80K-T6Item number DLK-SAJ-CH380KT6CB3-L261 and CB3-M20, through the CB3-HVC high-voltage cabinet. SAJ's CB3 datasheet states it directly: the battery is compatible with SAJ CH2 and CH3 series inverters. 60 to 260 kWh per cluster.
SAJ CH3-99.9K-T8Item number DLK-SAJ-CH3999KT8CB3-L261 and CB3-M20, through the CB3-HVC high-voltage cabinet. SAJ's CB3 datasheet states it directly: the battery is compatible with SAJ CH2 and CH3 series inverters. 60 to 260 kWh per cluster.
SAJ H2-10K-T3 (10 kW three-phase hybrid inverter)Item number DLK-SAJ-H210KT3B2-5.0-HV1 to B2-25.0-HV1 and B2-5.0-HV5 to B2-25.0-HV5, through the BC2-HV1 control module. SAJ's Configuration Instructions V1.0 state the system as H2 plus BC2 plus BU2. CAVEAT: the signed statement is SAJ's Oceania issue and names the -AU model variants. Ask SAJ to confirm the EU and DE variants in writing before a first order.
SAJ H2-12K-T3 (12 kW three-phase hybrid inverter)Item number DLK-SAJ-H212KT3B2-5.0-HV1 to B2-25.0-HV1 and B2-5.0-HV5 to B2-25.0-HV5, through the BC2-HV1 control module. SAJ's Configuration Instructions V1.0 state the system as H2 plus BC2 plus BU2. CAVEAT: the signed statement is SAJ's Oceania issue and names the -AU model variants. Ask SAJ to confirm the EU and DE variants in writing before a first order.
SAJ H2-15K-T3Item number DLK-SAJ-H215KT3B2-5.0-HV1 to B2-25.0-HV1 and B2-5.0-HV5 to B2-25.0-HV5, through the BC2-HV1 control module. SAJ's Configuration Instructions V1.0 state the system as H2 plus BC2 plus BU2. CAVEAT: the signed statement is SAJ's Oceania issue and names the -AU model variants. Ask SAJ to confirm the EU and DE variants in writing before a first order.
SAJ H2-20K-T3Item number DLK-SAJ-H220KT3B2-5.0-HV1 to B2-25.0-HV1 and B2-5.0-HV5 to B2-25.0-HV5, through the BC2-HV1 control module. SAJ's Configuration Instructions V1.0 state the system as H2 plus BC2 plus BU2. CAVEAT: the signed statement is SAJ's Oceania issue and names the -AU model variants. Ask SAJ to confirm the EU and DE variants in writing before a first order.
SAJ H2-25K-T3Item number DLK-SAJ-H225KT3B2-5.0-HV1 to B2-25.0-HV1 and B2-5.0-HV5 to B2-25.0-HV5, through the BC2-HV1 control module. SAJ's Configuration Instructions V1.0 state the system as H2 plus BC2 plus BU2. CAVEAT: the signed statement is SAJ's Oceania issue and names the -AU model variants. Ask SAJ to confirm the EU and DE variants in writing before a first order.
SAJ H2-30K-T3-DEItem number DLK-SAJ-H230KT3DEB2-5.0-HV1 to B2-25.0-HV1 and B2-5.0-HV5 to B2-25.0-HV5, through the BC2-HV1 control module. SAJ's Configuration Instructions V1.0 state the system as H2 plus BC2 plus BU2. CAVEAT: the signed statement is SAJ's Oceania issue and names the -AU model variants. Ask SAJ to confirm the EU and DE variants in writing before a first order.
SAJ HS2-10K-T2-XItem number DLK-SAJ-HS210KT2XBU2-5.0-HV1/HV5, up to 5 battery modules. Battery window 180 to 600 V.
SAJ HS2-5K-T2-X (5 kW three-phase hybrid inverter)Item number DLK-SAJ-HS25KT2XBU2-5.0-HV1/HV5, up to 5 battery modules. Battery window 180 to 600 V.
SAJ HS2-6K-T2-XItem number DLK-SAJ-HS26KT2XBU2-5.0-HV1/HV5, up to 5 battery modules. Battery window 180 to 600 V.
SAJ HS2-8K-T2-XItem number DLK-SAJ-HS28KT2XBU2-5.0-HV1/HV5, up to 5 battery modules. Battery window 180 to 600 V.
