Building energy storage system PU40

commercialbatterylithium-ion

Overview
The Volvo PU40 is a portable power unit designed to charge compact construction machines and site equipment where grid power is unavailable or limited. It can be charged from a grid connection and then used on-site as a mobile energy source. Equipped with DC fast output and AC outlets, the PU40 supports charging of machines and small electrical equipment.

Key product facts

• Weight: 900 kg
• Total storage capacity: 40 kWh
• Connector type: Type 2

Features & Benefits
The PU40 provides flexibility to fast-charge machines via a 17 kW DC output and to supply AC power for tools or machine AC charging. It supports DC fast charging for the unit itself and DC output for external machines, enabling operation on sites without a local grid connection or with constrained power availability.

Charging examples & capability

• Fast charge the PU40 (17 kW DC): approx. 2 hours (10% to 100%).
• AC charging of the PU40: up to 6 kW on-board charger; AC charging time depends on available supply.
• Charging L20 Electric (33 kWh): ~1 h 45 min with 17 kW DC, ~11.5 h with AC 2.3 kW.
• Charging L25 Electric (40 kWh): ~2 h with 17 kW DC, ~14.5 h with AC 2.3 kW.
• Charging ECR18 (16 kWh): ~1 h with DC, ~6.5 h with AC (2.3 kW).
• Charging EC18 / ECR25 (20 kWh): EC18 ~1 h 15 min DC (~8.5 h AC), ECR25 ~1 h DC (~7.5 h AC).

Specifications table
Power input DC: 17 kW
Voltage input DC (VCE Protocol): 48 V
Power input AC: 6 kW
Voltage input AC (50 Hz): 400 / 230 V
Total storage capacity: 40 kWh
Power output DC (VCE Protocol): 17 kW
Power output AC: 3 kW
AC outlet: 2 x 13 A
Charging time from 10% to 100% (PU40): 2 h
Dimensions (Length): 1,287 mm
Dimensions (Width): 922 mm
Dimensions (Height): 1,168 mm
Weight: 900 kg
Protection degree: IP54
Operating temperature (Min.): -10 °C
Operating temperature (Max.): 40 °C
Connector Type: Type 2
Charging Protocol: VCE48V
Battery Type: Lithium-ion NMC
Power Unit Type: Portable

Applications
The PU40 is suited for charging compact electric excavators, wheel loaders and powering site tools on construction sites or other locations lacking a reliable grid connection. AC outlets allow charging brand-agnostic equipment and small tools in addition to Volvo machines.

Technical specifications

• Model: PU40
• Total battery capacity: 40 kWh
• Power input (DC): 17 kW
• Power output (DC): 17 kW
• Power input (AC): up to 6 kW (on-board charger)
• Power output (AC): 3 kW total (two outlets: 2.3 kW + 0.7 kW)
• AC outlets: 2 x 13 A
• Voltage input AC: 400 / 230 V
• Voltage input DC (VCE Protocol): 48 V
• Charging protocol: VCE48V
• Battery chemistry: Lithium-ion NMC
• Weight: 900 kg
• Dimensions (L x W x H): 1,287 mm x 922 mm x 1,168 mm
• Protection degree: IP54
• Operating temperature range: -10 °C to 40 °C
• Power unit type: Portable