Battery HV

BOS-G Outdoor Solution · 51.2–97.28 kWh

BOS-G / BOS-G Pro · BOS-G55-Cabinet · BOS-G50-Cabinet

51.2–97.28 kWh

Outdoor build of the BOS-G high-voltage LFP battery for small-scale C&I, with BOS-G Pro as the alternative. The 5.12 kWh packs and their control box sit in an IP55, C4-rated BOS-G55-Cabinet, one cluster of up to 11 packs per cabinet. The tall IP54 BOS-G50-Cabinet takes up to 10. Deye's AU configuration list (2026-09-10) gives three outdoor builds on a Deye SG01HP3 hybrid: 51.2 kWh (1 cabinet, SUN-12–25K), 92.16 kWh (2 cabinets, SUN-25K) and 97.28 kWh (2 cabinets, SUN-29.9–40K — a 50 kW inverter would exceed the cabinet's 0.5C maximum).

Commercial

Builds (Deye AU configuration list): 51.2 kWh (10 packs, 1 cabinet) · 92.16 kWh (18 packs, 2 cabinets) · 97.28 kWh (19 packs, 2 cabinets)
Battery: BOS-G (HVB750V/100A-EU + BOS-GM5.1) · alternative: BOS-G Pro (BOS-G-PDU-2 + BOS-G-Pack5.1)
Inverter: Deye SG01HP3 hybrid: SUN-12–25K-SG01HP3-AU-AM2 or SUN-29.9–40K-SG01HP3-AU-BM3/BM4
Per cabinet: BOS-G55: 1 control box + up to 11 × 5.12 kWh packs · BOS-G50: up to 10 packs
Enclosure: BOS-G55 IP55 · BOS-G50 IP54 · both C4 corrosion resistance
Cabinet size (W×D×H): BOS-G55 1170 × 750 × 1245 mm · BOS-G50 573 × 800 × 1927 mm
Pack: 5.12 kWh · 51.2 V · 100 Ah LFP
Recommended C-rate: Max. 0.5C charge/discharge
Warranty: 10 years per Deye datasheets — confirm terms with Suncloud

View datasheet Ask an engineer

Specifications

Solution

Builds (Deye AU configuration list): 51.2 kWh = 10 packs in 1 cabinet + SUN-12–25K-SG01HP3-AU-AM2 · 92.16 kWh = 2 × 9 packs in 2 cabinets + SUN-25K-SG01HP3-AU-AM2 · 97.28 kWh = 10 + 9 packs in 2 cabinets + SUN-29.9–40K-SG01HP3-AU-BM3/BM4 (the list also names the 50 kW, which would run the cabinets at 0.51C, over their 0.5C maximum)
Battery options: BOS-G (primary): HVB750V/100A-EU control box + BOS-GM5.1 packs · BOS-G Pro (alternative): BOS-G-PDU-2 control box + BOS-G-Pack5.1 packs
Clusters: One control box and one cluster per cabinet
Packs per cluster: BOS-G 3–12, BOS-G Pro 5–16 · max. 11 in a BOS-G55-Cabinet, 10 in a BOS-G50-Cabinet
Cluster nominal voltage: 460.8 V (9 packs) · 512 V (10 packs) · 563.2 V (11 packs)
Inverter type: Deye SG01HP3 three-phase HV hybrid
Max. battery charge/discharge current: Set by the inverter's battery input: 37 A (SUN-10–20K), 50 A (SUN-25K), 50 A per input (SUN-29.9–50K, two inputs)
Recommended operating conditions: Max. 0.5C charge/discharge, 25 °C, 90% DoD, 70% EOL
Recommended duration: 2–4 hours
Recommended ambient temperature: 0–40 °C
Altitude: ≤2000 m, set by the BOS-G battery and the SG01HP3 inverters · cabinets and BOS-G Pro ≤3000 m
Rack: Not needed — packs fix directly into the cabinet slots
Communication port: CAN 2.0 / RS485
Cycle life: ≥6000 (25 °C ± 2 °C, 0.5C/0.5C, 70% EOL)

Accessory kits — BOS-G55-Cabinet (optional)

BOS-G55-Cabinet-AP-A: Interface kit for a BOS-G control box (HVB750V/100A-EU) on a 10–25 kW SG01HP3 hybrid
BOS-G55-Cabinet-AP-B: Interface kit for a BOS-G Pro control box (BOS-G-PDU-2) on a 10–25 kW SG01HP3 hybrid
BOS-G55-Cabinet-AP-C: Parallel bus-bar kit that joins two clusters onto the single battery input of a 10–25 kW SG01HP3 (the SUN-25K in Deye's AU 92.16 kWh build), pre-cabled for an extra circuit breaker

Cabinet — BOS-G55-Cabinet

IP rating of enclosure: IP55
Corrosion resistance: C4
Holds: Max. 1 × HVB750V/100A-EU + 11 × BOS-GM5.1, or 1 × BOS-G-PDU-2 + 11 × BOS-G-Pack5.1
Max. energy per cabinet: 56.32 kWh (11 × 5.12 kWh packs: BOS-G55 or BOS-G55 Pro)
Bearing capacity: Max. 525 kg
Weight (approx.): ≈170 kg
Dimensions (W×D×H): 1170 × 750 × 1245 mm
Altitude: ≤3000 m
Recommended operating temperature: Charge 0–55 °C · Discharge −20–55 °C
Colour: White (RAL 9016)
Material: SGCC
Installation: Outdoor, open air · adjustable levelling feet · 4 mounting feet bolt to the cabinet (M8 × 20) and anchor it to the floor with M12 × 80 expansion bolts
Cable entry: One cable gland on each side of the cabinet
Siting: Avoid strong corrosive gas, heavy salt spray, severe vibration and flood-prone locations
Packing list (quick guide): 4 mounting feet, M12 × 80 expansion bolts and fixing bolts, terminal-block cover, cable ties, battery series power cable, BMU–BMU Ethernet cable, quick guide
Warranty: 10 years per Deye datasheet — confirm terms with Suncloud

Cabinet — BOS-G50-Cabinet

IP rating of enclosure: IP54
Corrosion resistance: C4
Holds: Control box + up to 10 × 3U battery packs (51.2 kWh) · BOS-G or BOS-G Pro
Cooling: Intelligent temperature control with fan cooling
Bearing capacity: ≤600 kg
Weight (approx.): 180 kg
Dimensions (W×D×H): 573 × 800 × 1927 mm
Altitude: ≤3000 m
Recommended operating temperature: −20–55 °C
Colour: White (RAL 9016)
Material: SGCC
Installation: Six mounting feet anchored with M12 × 80 expansion bolts · cables leave through a bottom outlet sealed with fire-resistant mud
Accessory kit (quick guide): 6 × M12 × 80 expansion bolts, M6 × 16 mounting bolts, adapter cable (needed with BOS-G), 1 kg fire-resistant mud, quick installation guide · circuit breaker optional · confirm what ships with the cabinet with Suncloud
Warranty: 10 years per Deye brochure — confirm terms with Suncloud

Battery — BOS-G (primary)

Control box: HVB750V/100A-EU · 120–750 V DC
Control box current: 100 A nominal · 125 A max.
Control box size and weight: 440 × 570 × 150 mm · 19 kg
Battery pack: BOS-GM5.1 · LFP · 51.2 V · 100 Ah · 5.12 kWh
Pack current: 100 A nominal · 125 A peak
Pack size and weight: 440 × 570 × 133 mm · 45 kg
Pack temperature: Charge 0–55 °C · Discharge −20–55 °C · Storage 0–35 °C
Ingress protection: IP20 (inside the cabinet)
Altitude: ≤2000 m

Battery — BOS-G Pro (alternative)

Control box: BOS-G-PDU-2 · 200–1000 V DC
Control box current: 100 A nominal · 120 A max.
Control box size and weight: 440 × 570 × 150 mm · 19 kg
Control box versions: Two part numbers, with 4 AWG × 2 m or 4 AWG × 4 m inverter cables, for direct connection to a 29.9–50 kW SG01HP3 · on a 12–25 kW SG01HP3 the optional AP-B kit adapts it
Battery pack: BOS-G-Pack5.1 · LFP · 51.2 V · 100 Ah · 5.12 kWh
Pack current: 100 A nominal · 120 A peak
Pack size and weight: 440 × 585 × 133 mm · 46 kg
Pack temperature: Charge 0–55 °C · Discharge −20–55 °C · Storage 0–35 °C
Ingress protection: IP20 (inside the cabinet)
Altitude: ≤3000 m

Highlights

Outdoor enclosure for the BOS-G battery. The BOS-G55-Cabinet is IP55 with C4 corrosion resistance. It is made of SGCC, finished in white (RAL 9016), for open-air installation. The cabinet itself is rated to 3000 m altitude, but the BOS-G battery and the SG01HP3 inverters are rated to 2000 m, which sets the limit for these builds.
One cluster per cabinet, up to 11 packs. Each BOS-G55 holds one control box and up to eleven 5.12 kWh packs, which is 56.32 kWh. The packs fix straight into the cabinet slots, so no 19-inch rack is needed.
BOS-G first, BOS-G Pro as the alternative. Both batteries fit the same cabinet. BOS-G is the HVB750V/100A-EU control box with BOS-GM5.1 packs. BOS-G Pro is the BOS-G-PDU-2 control box with BOS-G-Pack5.1 packs.
Pairs with the SG01HP3 hybrid range. Deye’s AU configuration list pairs it with the SUN-12–25K-SG01HP3-AU-AM2, which has one battery input, or, for the 97.28 kWh build, the SUN-29.9–40K-SG01HP3-AU-BM3/BM4, which has two. Deye’s AU outdoor brochure shows further BOS-G Pro builds (see below).
Two cabinet options. The low, wide BOS-G55-Cabinet is the cabinet in Deye’s AU configuration list. The tall, narrow BOS-G50-Cabinet is IP54 and fan-cooled, and takes up to 10 packs (51.2 kWh) on a smaller footprint.

Builds (Deye AU configuration list, 2026-09-10)

System energy	Packs	Cabinets	Accessory kit (optional)	Hybrid inverter
51.2 kWh	10, one cluster	1 × BOS-G55	AP-A (BOS-G) or AP-B (BOS-G Pro)	SUN-12–25K-SG01HP3-AU-AM2
92.16 kWh	18, two clusters of 9 in parallel	2 × BOS-G55	AP-C	SUN-25K-SG01HP3-AU-AM2
97.28 kWh	19, clusters of 10 and 9	2 × BOS-G55	None	SUN-29.9–40K-SG01HP3-AU-BM3/BM4 ²

The 97.28 kWh build puts one cluster on each of the inverter’s two battery inputs.

² Deye’s configuration list names SUN-29.9–50K for this build. This page stops at 40 kW because 50 kW on 97.28 kWh is 0.51C, over the cabinet’s 0.5C maximum.

Deye’s AU outdoor brochure (2026-09-07, p.7) lists a different set of nine BOS-G Pro scenarios, all in BOS-G55-Cabinets:

Brochure scenario	Hybrid inverter	BOS-G Pro	Cabinets	Accessory kit
2 h	SUN-25K-SG01HP3-AU-AM2	56.32 kWh (11 packs)	1	AP-B
2 h	SUN-25K-SG02HP3-AU-AM3 ¹	56.32 kWh (11 packs)	1	None
2 h	SUN-25K-SG01HP3-AU-AM2	51.2 kWh (10 packs)	1	AP-B
2 h	SUN-25K-SG02HP3-AU-AM3 ¹	51.2 kWh (10 packs)	1	None
3 h	SUN-29.9K-SG01HP3-AU-BM3	92.16 kWh (9 + 9 packs)	2	None
3 h	SUN-35K-SG01HP3-AU-BM3	107.52 kWh (10 + 11 packs)	2	None
4 h	SUN-25K-SG01HP3-AU-AM2	102.4 kWh (10 + 10 packs)	2	AP-C
4 h	SUN-12K-SG01HP3-AU-AM2	51.2 kWh (10 packs)	1	AP-B
4 h	SUN-10K-SG01HP3-AU-AM2	40.96 kWh (8 packs)	1	AP-B

¹ The SUN-25K-SG02HP3-AU-AM3 is not in Deye’s AU configuration list (2026-09-10).

This page follows the configuration list. Confirm any other build with Suncloud.

Deye recommends the cabinet for 2–4 hour systems. See the SG01HP3 10–25 kW and SG01HP3 29.9–50 kW hybrid pages for the inverter specifications, and the BOS-G and BOS-G Pro pages for the rack versions of each battery.

Design and installation notes

0.5C maximum. The cabinet datasheet recommends no more than 0.5C charge or discharge. Each BOS-G or BOS-G Pro cluster is 100 Ah. The SG01HP3 battery input limits the current to 37 A on the 10–20 kW models and 50 A on the 25 kW model and on each input of the 29.9–50 kW models. So each cluster stays at or below 0.5C. Suncloud also holds each outdoor build to 0.5C by power (inverter kW ÷ nominal kWh), which is why the 97.28 kWh build stops at 40 kW.
Wiring to a 12–25 kW inverter. Deye’s quick guide calls for a junction box and 6 AWG power cables, which are not supplied, between the cabinet and a SUN-12–25K-SG01HP3. With two cabinets, the first cabinet’s control box links to the second (HVBOUT to HVBIN). Both cabinets then feed the inverter’s single battery input through the terminal block on the cabinet frame and the junction box. This is the 92.16 kWh build, and the optional AP-C kit is Deye’s pre-cabled parallel connection for it. The quick guide is written for BOS-G and refers BOS-G Pro installers to Deye’s online document.
Wiring to a 29.9–50 kW inverter. Each cabinet connects to the inverter on its own. The PCS terminal on each cabinet’s control box goes to its own BMS terminal on the inverter, and its P+ and P− go to its own BAT+ and BAT− input, using the supplied communication and power cables.
Siting. Install in open air. Avoid strong corrosive gas, heavy salt spray, severe vibration and flood-prone ground. The recommended ambient temperature is 0–40 °C. Each cabinet stands on adjustable levelling feet. Four mounting feet bolt to the cabinet with M8 × 20 bolts and anchor it to the floor with M12 × 80 expansion bolts. A cable gland on each side takes the external wiring.
Cabinet names in the quick guide. The two-cabinet drawings in Deye’s quick guide label the cabinets “BOS-G45-Cabinet” and “BOS-G50-Cabinet” after the 9 or 10 packs inside. Both are BOS-G55-Cabinets, not the tall IP54 BOS-G50-Cabinet below. The configuration list gives only the pack total for its two-cabinet builds, so the 9 + 9 and 10 + 9 splits in the builds table follow these drawings.
Where Deye’s documents differ. The BOS-G and BOS-G Pro datasheets rate the packs at 100% DoD, while the cabinet datasheet’s recommended operating conditions use 90%. The brochure’s BOS-G Pro component tables (p.2) rate the control box and packs at 120 A maximum, while its BOS-G Pro system table (p.4) prints a 125 A two-minute peak. The cabinet datasheet and the brochure name EU inverter models for the AP kits.
BOS-G50-Cabinet. This cabinet is not in Deye’s AU configuration list. It holds one cluster of up to 10 packs (51.2 kWh). Its cables leave through a bottom outlet that is sealed with fire-resistant mud, and Deye recommends a circuit breaker (an optional accessory) between the cabinet and the inverter. The AP-A, AP-B and AP-C kits are listed for the BOS-G55-Cabinet only, so confirm the connection parts for a BOS-G50 build with Suncloud.

Figures are from the Deye BOS-G55-Cabinet datasheet (V1.0, 2026-09-08), the Deye BOS-G Pro Outdoor Solution brochure (AU, V1.0, 2026-09-07), the BOS-G55-Cabinet quick guide (AU, EN, file dated 2026-09-07), the BOS-G50-Cabinet & SE-G50-Cabinet brochure (V1.0, 2026-03-20, EU edition), the BOS-G50-Cabinet quick installation guide (EN, file dated 2026-02-11), the BOS-G Series brochure (AU, V1.0, 2025-11-19) and Deye’s AU indoor/outdoor configuration list (V1.0, 2026-09-10). Confirm the configuration, the connection kit, the peak current and the warranty terms with Suncloud before quoting.