PowerBrick Smart 48V 72Ah LiFePO4 battery with Bluetooth

Country: France · Model: PowerBrick Smart 48V-72Ah-BT

A 51.2 V, 72 Ah energy storage battery with 3.69 kWh of LiFePO4 cells rated for more than 3,000 cycles. The PowerBrick Smart 48V-72Ah-BT weighs 30.3 kg, delivers 90 A continuously and holds 130 A for up to 30 s.

Voltage: 51.2 V
Capacity: 72 Ah
Energy: 3,690 Wh
Cycle life: >3000
Protection: IP65
Weight: 30.3 kg
Dimensions: 500 × 239 × 217

Technical specifications

Electrical
Nominal voltage / nominal capacity	51.2 V / 72 Ah
Stored energy	3.69 kWh
Volumetric energy density / specific energy	142.3 Wh/L / 121.8 Wh/kg
Internal resistance	≤ 50 mΩ
Cycle life	> 3,000 cycles
Self-discharge	< 3% per month
Energy efficiency	98%
Standard charge
Charge voltage	57.6 V ± 0.8 V (optional float voltage: 53.44 V max)
Charge mode	CC/CV (constant current / constant voltage)
Continuous charge current / maximum charge current	35 A / 70 A
BMS charge cut-off voltage	59.2 V ± 0.4 V
Standard discharge
Instant peak discharge current	250 A ± 30 A (100 ms max)
Continuous discharge current	90 A (4.61 kW)
Maximum discharge current (< 30 s)	130 A (6.57 kW)
BMS discharge cut-off voltage	40 V
Environmental
Charge temperature range	0 °C to +60 °C
Discharge temperature range	−20 °C to +60 °C
Storage temperature	0 °C to +50 °C at 60 ± 25% relative humidity
IP rating	IP65
Mechanical
Cell type	Cylindrical
Casing material	ABS plastic
Dimensions	L 500 (520) × W 239 × H 217 mm
Weight	30.3 kg
Terminals	M8 bolt
Customs codes (for reference)
HS code	8507.60
UKTZED code (Ukraine)	8507600000
CN code (EU)	85076000

Specifications, charts and drawings are taken from the manufacturer’s technical documentation. Updated 10/31/2026. Customs codes are for reference only; the final code is determined at customs declaration for the specific model.

Description

The 500 (520) × 239 × 217 mm IP65 ABS case with M8 bolt terminals has the same size as the larger 105 Ah model. At 90 A continuous on a 48 V bus it gives 4.61 kW, and 130 A for 30 s up to 6.57 kW. The BMS drops the load at 40 V and stops charging at 59.2 V ± 0.4 V, and cell status is visible over Bluetooth. Specific energy is 121.8 Wh/kg, energy efficiency 98%, storage at 0 °C to +50 °C. It weighs 30.3 kg against 36.5 kg for the larger model in the same case, so lift it with two people.

How to choose

If the hybrid inverter needs more than 90 A continuously or more than 3.69 kWh, take the PowerBrick Smart 48V-105Ah-AB-BT with 5,380 Wh in the same case. Small systems are lighter with the Pro 48V-32Ah at 1,638 Wh or Pro 48V-25Ah at 1,280 Wh, both 260 × 168 × 212 mm.