PowerTech Systems PowerBrick 12V-70Ah
The PowerTech Systems PowerBrick 12V-70Ah is a battery pack with a nominal voltage of 12.8 V, a nominal capacity of 70Ah, a capacity of 70 Ah, 896 Wh of energy, LiFePO4 cells, certification to CE, RoHS, UN 38.3 and a peak of 150 A.
Last updated: 30 October 2026
Battery and charging
- Capacity (amp-hours)
- 70 Ah
- Cells
- Cylindrical
- Energy
- 896 Wh
- Voltage
- 12.8 V
- Chemistry
- LiFePO4
- Rated charge cycles
- >3000
- Case material
- ABS
- Internal resistance
- ≤ 40mΩ
- Nominal capacity
- 70Ah
- Peak discharge
- 150 A
- Continuous discharge current
- 100
- Pulse discharge current
- 250 A ± 30 A (max 100mS)
- Maximum charge current, as the maker labels it
- 70A
- BMS charge cut-off voltage
- 14.8 V ± 0.1V
- Efficiency
- > 98%
- Charging voltage
- 14.4 V ± 0.2 V
- Float voltage
- 13.36V max
- Voltage it cuts off at
- 10 V
- How fast it loses charge sitting idle
- < 3% per month
“Nominal voltage / Nominal capacity 12.8V / 70Ah”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Type of cells” | “Cylindrical”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_Lithium-Ion_battery.pdf
“Nominal voltage / Nominal capacity 12.8V / 70Ah Stored energy 896 Wh”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Stored energy” | “896 Wh”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_Lithium-Ion_battery.pdf
“Nominal voltage / Nominal capacity 12.8V / 70Ah”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_Lithium-Ion_battery.pdf
“12V battery pack - Lithium Iron-Phosphate (LiFePO4) - 70Ah”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Cycles” | “>3000 cycles (see chart)”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Casing material” | “ABS”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Internal resistance” | “≤ 40mΩ”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Nominal voltage / Nominal capacity” | “12.8V / 70Ah”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Maximum discharge current (< 30s)” | “150 A (1.92 kW)”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Continuous discharge current” | “100 A (1.28 kW)”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_Lithium-Ion_battery.pdf
“Continuous discharge current 100 A (1.28 kW)”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_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+_12V_70Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Continuous charge current / Maximum charge current” | “35 A / 70A”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “BMS charge cut-off voltage” | “14.8 V ± 0.1V”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Energy efficiency” | “> 98%”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Charge voltage” | “14.4 V ± 0.2 V (Optional floating voltage : 13.36V max)”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Charge voltage” | “14.4 V ± 0.2 V (Optional floating voltage : 13.36V max)”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “BMS discharge cut-off voltage” | “10 V”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Self discharge” | “< 3% per month”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_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+_12V_70Ah_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+_12V_70Ah_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+_12V_70Ah_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+_12V_70Ah_Lithium-Ion_battery.pdf
Size and fit
- Weight
- 8.1 kg
- Overall dimensions
- L : 228mm x W : 138mm x H : 210 mm
- Length
- 228 mm
- Width
- 138 mm
- Height
- 210 mm
- Terminals
- M8 bolt
- Series and parallel connection
- up to 16 packs in parallel and 4 in series
“Dimensions L : 228mm x W : 138mm x H : 210 mm Weight 8.1 kg”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Weight” | “8.1 kg”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Dimensions” | “L : 228mm x W : 138mm x H : 210 mm”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_Lithium-Ion_battery.pdf
“Dimensions L : 228mm x W : 138mm x H : 210 mm”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_Lithium-Ion_battery.pdf
“Dimensions L : 228mm x W : 138mm x H : 210 mm”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_Lithium-Ion_battery.pdf
“Dimensions L : 228mm x W : 138mm x H : 210 mm”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Terminal” | “M8 bolt”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_Lithium-Ion_battery.pdf
“Flexible deployment : up to 16 packs in parallel and 4 in series”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_Lithium-Ion_battery.pdf
Compatibility
- Communication protocol
- Bluetooth
“Bluetooth monitoring (SOC, cell voltage, SOH, etc.)”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_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+_12V_70Ah_Lithium-Ion_battery.pdf
Sources
- Archived document
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_70Ah_Lithium-Ion_battery.pdf
Retrieved October 29, 2026