SAJ B2-25.0-HV5
SAJ B2-25.0-HV5 is a 25.0 kWh high-voltage battery system on the HV5 module: 5 x BU2-5.0-HV5 (32S1P, 102.4 V / 50 Ah each) under one BC2-HV1 control module.
- 96% depth of discharge on every B2/BU2 module size, 5.0 to 25.0 kWh nominal per stack.
- Stack 1 to 5 BU2 modules behind one BC2-HV1 control unit for up to 25.0 kWh on H2/HS2, or up to 8 BU3 modules for up to 40 kWh on HS3.
- IP65-rated enclosure for wall- or ground-mounted outdoor installation.
- CAN communication to the host inverter, natural convection cooling — no active thermal management to maintain.
- 24 kWh
- Usable energy
- 25.0 kWh
- Nominal energy
- 512 V
- Nominal voltage
- 30 A
- Max. charge current
- Manufacturer
- SAJ
- Model code
- B2-25.0-HV5
- Item no.
- DLK-SAJ-B2250HV5
- Delivery
- Germany delivery estimate: EUR 85–205 · The final delivery charge is included in your Proforma.
Plan with B2-25.0-HV5
New system, extension or replacement? Linker Advisor starts from this article and asks only for what is still open — existing model, quantity, postcode, installation date.
Figures transcribed from the manufacturer datasheet on file. Confirm your grid code and configuration with our engineers before ordering.
- GoodWe · SAJ · Pylontech · EcoFlow · Chint paired from the maker’s own lists
- Datasheets on file for every item
- Within 24 h engineering response
- MOQ 1 unit · EU delivery
- Engineering-checked configurations
Numbers that survive the bank's site audit.
Every figure below comes from the manufacturer datasheet on file — the same document your lender's technical advisor will request.
Usable energy
Voltage
Ingress protection
Modules
Size it to the load. Grow it later.
24 kWh per stack today; add modules when the load grows instead of guessing on day one.
Stacked configuration
5 x BU2-5.0-HV5 battery modules plus the BC2-HV1 control module; the HV5 tier list runs 5 to 25 kWh in 5 kWh steps.
Inspect it before you spec it.
Official renders, installation photos and system panels for this model line.
Configuration shown: 5-module 25 kWh tower.
Official SAJ render from the B2 datasheet.
SAJ B2 battery shown at three stack capacities, manufacturer render
SAJ B2 battery beside a residence, manufacturer render
SAJ BU2 battery module of the B2 stack, official render
Specifications
Every value exactly as published in the official B2-25.0-HV5 documentation.
Documents
What this unit is approved to run with.
Every pairing below traces to a manufacturer compatibility list, by document version and date. A pairing only one maker lists is marked; we quote it, an engineer confirms it.
SAJ CH3-100K-T8
Item no. DLK-SAJ-CH3100KT8 On SAJ's compatibility list
SAJ CH3-110K-T8
Item no. DLK-SAJ-CH3110KT8 On SAJ's compatibility list
SAJ CH3-125K-T8
Item no. DLK-SAJ-CH3125KT8 On SAJ's compatibility list
SAJ CH3-75K-T6
Item no. DLK-SAJ-CH375KT6 On SAJ's compatibility list
SAJ CH3-80K-T6
Item no. DLK-SAJ-CH380KT6 On SAJ's compatibility list
SAJ CH3-99.9K-T8
Item no. DLK-SAJ-CH3999KT8 On SAJ's compatibility list
SAJ H2-15K-T3
Item no. DLK-SAJ-H215KT3 On SAJ's compatibility list
SAJ H2-20K-T3
Item no. DLK-SAJ-H220KT3 On SAJ's compatibility list
Pick the rating
SAJ family. Same engineering, different size.
Every figure comes straight from the manufacturer's official datasheet.
Configuration 3
The B2 HV platform is built for SAJ's H2 and HS2 hybrid inverters, with CAN communication to the host inverter.
- H2 / HS2: stack 1 to 5 BU2-5.0-HV5 modules behind one BC2-HV1 control module for 5.0 to 25.0 kWh rated.
- HS3: pairs with the separate BU3-5.0-TV2-PRO module, up to 8 modules for up to 40 kWh; that module pairs only with the HS3.
- Voltage window: the tiers run from 89.6 to 115.2 V operating with one module up to 448 to 576.0 V with five.
Yes, within the family: the stack design runs from one to five BU2-5.0-HV5 modules under a single BC2-HV1 control module.
- Per module: 5.0 kWh rated and 4.8 kWh usable, which is 96 percent depth of discharge.
- Power scaling: rated power follows the stack, 3072 W with one module to 15360 W with five, at 30 A maximum charge and discharge in every tier.
- Arithmetic check: the 20 kWh tier is 4 x 5.0 kWh rated and 4 x 4.8 kWh = 19.2 kWh usable.
- Ceiling: five modules per stack is the printed maximum for the B2 HV5 table.
SAJ's B2 datasheet prints both variants with identical electrical values; the HV5 tiers are built on the BU2-5.0-HV5 module instead of the BU2-5.0-HV1.
- Identical: energy ratings, dimensions, voltages and current limits are printed the same for both variants.
- Weight: the HV5 module stack weighs about 2 kg more per module.
- Selection: SAJ states no further difference in this datasheet, so match the variant your project documents specify.
Installation & wiring 1
The stack is IP65 rated, ground-mounted as standard with wall mounting as an option, and cooled by natural convection.
- Footprint: 626 x 365 mm; the module stack height runs from 261 mm with one module to 1305 mm with five, plus 220 mm for the BC2-HV1 control module.
- Weights: 52.5 kg per module position and 11 kg for the control module; the five-module stack reaches 262.5 kg.
- Temperature: charging is rated for 0 to 50 C, discharging for -10 to 50 C, at 0 to 95 percent non-condensing humidity.
- Wiring: CAN communication to the host inverter; the system is protection class I.
Availability & compliance 1
SAJ lists IEC 62619 for cell and pack, EN 62477-1, EN 61000-6-1/-2/-3/-4 and UN 38.3 for this series.
- Battery safety and EMC: IEC 62619 covers cells and packs, EN 62477-1 and the EN 61000-6 set cover the system.
- Transport: UN 38.3 covers lithium shipping.
- Datasheet edition: the printed reference is SAJ's AU-market B2 HV1/HV5 datasheet.
- Grid paperwork: the battery datasheet names no grid-connection certificate, so confirm the certificate set for your market, including any German requirement, with the quote.
Operation & warranty 1
SAJ's datasheet refers warranty terms to the warranty card, so request the written warranty conditions with your quote.
- Duty limits: 30 A maximum charge and discharge current in every tier; maximum fault current is 100 A.
- Usable energy: 4.8 kWh per 5.0 kWh module, 96 percent depth of discharge across the family.
- Thermal design: natural convection with no fans or liquid loop, so there is no active cooling hardware to service.
- Temperature window: charging is rated for 0 to 50 C, discharging for -10 to 50 C.
General 1
The datasheet builds HV5 tiers on the BU2-5.0-HV5 module instead of the BU2-5.0-HV1.
- Energy ratings, dimensions, voltages and currents: printed identically
- Weight: the HV5 module stack weighs about 2 kg more per module
SAJ states no further difference in this datasheet. Confirm the variant your project or price list specifies.
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