PowerTech Systems PowerBrick 48V-72Ah
The PowerTech Systems PowerBrick 48V-72Ah is a battery pack with a nominal voltage of 51.2 V, a nominal capacity of 72Ah, a capacity of 72 Ah, LiFePO4 cells, certification to CE, RoHS, UN 38.3, a peak of 130 A and a weight of 30.3 kg.
Last updated: 30 October 2026
Battery and charging
- Capacity (amp-hours)
- 72 Ah
- Energy (kilowatt-hours)
- 3.69 kWh
- Cells
- Cylindrical
- Voltage
- 51.2 V
- Chemistry
- LiFePO4
- Rated charge cycles
- >3000
- Case material
- ABS
- Internal resistance
- ≤ 50 mΩ
- Nominal capacity
- 72Ah
- Peak discharge
- 130 A
- Continuous discharge current
- 90
- Pulse discharge current
- 250 A ± 30 A (max 100mS)
- Maximum charge current, as the maker labels it
- 70 A
- BMS charge cut-off voltage
- 59.2 V ± 0.4V
- Efficiency
- 98 %
- Charging voltage
- 57.6 V ± 0.8V
- Float voltage
- 53.44V max
- Voltage it cuts off at
- 40 V
- How fast it loses charge sitting idle
- < 3% per month
“Nominal voltage / Nominal capacity 51.2V / 72Ah”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Stored energy” | “3.69 kWh”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Type of cells” | “Cylindrical”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
“Nominal voltage / Nominal capacity 51.2V / 72Ah”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
“48V battery pack - Lithium Iron-Phosphate (LiFePO4) - 72Ah”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Cycles” | “>3000 cycles (see chart)”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Casing material” | “ABS”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Internal resistance” | “≤ 50 mΩ”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
“48V battery pack - Lithium Iron-Phosphate (LiFePO4) - 72Ah”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Maximum discharge current (< 30s)” | “130 A (6.57 kW)”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Continuous discharge current” | “90 A (4.61 kW)”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
“Continuous discharge current 90 A (4.61 kW)”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Instant peak discharge current” | “250 A ± 30 A (max 100mS)”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Continuous charge current / Maximum charge current” | “35 A / 70 A”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “BMS charge cut-off voltage” | “59.2 V ± 0.4V”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Energy efficiency” | “98 %”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Charge voltage” | “57.6 V ± 0.8V (Optional floating voltage : 53.44V max)”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Charge voltage” | “57.6 V ± 0.8V (Optional floating voltage : 53.44V max)”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “BMS discharge cut-off voltage” | “40 V”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Self discharge” | “< 3% per month”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
Battery care and safety
- Ingress protection
- IP 65
- Temperatures it may be charged in
- 0°C to +60°C
- Temperatures it may be run in
- -20°C to +60°C
- Temperatures it may be stored in
- 0°C to +50°C
Row from the maker’s page: “IP protection level” | “IP 65”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Charge temperature range” | “0°C to +60°C”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Discharge temperature range” | “-20°C to +60°C”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Storage temperature” | “0°C to +50°C @60±25% relative humidity”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
Size and fit
- Weight
- 30.3 kg
- Overall dimensions
- L : 500mm (520mm) x W : 239mm x H : 217 mm
- Length
- 500 mm
- Width
- 239 mm
- Height
- 217 mm
- Terminals
- M8 bolt
- Series and parallel connection
- up to 16 packs in parallel
“Dimensions L : 500mm (520mm) x W : 239mm x H : 217 mm Weight 30.3 kg”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Weight” | “30.3 kg”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Dimensions” | “L : 500mm (520mm) x W : 239mm x H : 217 mm”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
“Dimensions L : 500mm (520mm) x W : 239mm x H : 217 mm”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
“Dimensions L : 500mm (520mm) x W : 239mm x H : 217 mm”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
“Dimensions L : 500mm (520mm) x W : 239mm x H : 217 mm”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Terminal” | “M8 bolt”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
“Flexible deployment : up to 16 packs in parallel”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
Compatibility
- Communication protocol
- Bluetooth
“Bluetooth monitoring (SOC, cell voltage, SOH, etc.)”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
Certification claims
- Standard certified to
- CE, RoHS, UN 38.3
“Certification : CE, RoHS, UN 38.3”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
Sources
- Archived document
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_48V_72Ah_Lithium-Ion_battery.pdf
Retrieved October 29, 2026