PowerTech Systems PowerBrick 12V-20Ah
The PowerTech Systems PowerBrick 12V-20Ah is a battery pack with a nominal voltage of 12.8V, a nominal capacity of 20Ah, 256 Wh of energy, LiFePO4 cells, certification to CE, RoHS, UN 38.3, a peak of 60 A and a weight of 2.30 kg.
Last updated: 28 October 2026
Battery and charging
- Cells
- Cylindrical
- Energy
- 256 Wh
- Voltage
- 12.8V
- Chemistry
- LiFePO4
- Rated charge cycles
- >3000
- Case material
- ABS
- Internal resistance
- ≤ 50mΩ
- Nominal capacity
- 20Ah
- Peak discharge
- 60 A
- Continuous discharge current
- 40 A
- Pulse discharge current
- 180±30 A (max 100mS)
- Maximum charge current, as the maker labels it
- 20 A
- BMS charge cut-off voltage
- 14.8V ± 0.1V
- Efficiency
- > 96%
- 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
Row from the maker’s page: “Type of cells” | “Cylindrical”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_20Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Stored energy” | “256 Wh”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_20Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Nominal voltage / Nominal capacity” | “12.8V / 20Ah”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_20Ah_Lithium-Ion_battery.pdf
“12V battery pack - Lithium Iron-Phosphate (LiFePO4) - 20Ah”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_20Ah_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_20Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Casing material” | “ABS”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_20Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Internal resistance” | “≤ 50mΩ”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_20Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Nominal voltage / Nominal capacity” | “12.8V / 20Ah”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_20Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Maximum discharge current (< 30s)” | “60 A (768 W)”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_20Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Continuous discharge current” | “40 A (512 W)”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_20Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Instant peak discharge current” | “180±30 A (max 100mS)”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_20Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Continuous charge current / Maximum charge current” | “10 A / 20 A”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_20Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “BMS charge cut-off voltage” | “14.8V ± 0.1V”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_20Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Energy efficiency” | “> 96%”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_20Ah_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_20Ah_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_20Ah_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_20Ah_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_20Ah_Lithium-Ion_battery.pdf
Battery care and safety
- Ingress protection
- IP 65
- 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_20Ah_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_20Ah_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_20Ah_Lithium-Ion_battery.pdf
Size and fit
- Weight
- 2.30 kg
- Overall dimensions
- L : 180mm x P : 76mm x H : 168 mm
- Terminals
- M5 bolt
- Series and parallel connection
- up to 16 packs in parallel and 4 in series
Row from the maker’s page: “Weight” | “2.30 kg”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_20Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Dimensions” | “L : 180mm x P : 76mm x H : 168 mm”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_20Ah_Lithium-Ion_battery.pdf
Row from the maker’s page: “Terminal” | “M5 bolt”
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_20Ah_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_20Ah_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_20Ah_Lithium-Ion_battery.pdf
Sources
- Archived document
Source: powertechsystems.eu/wp-content/uploads/specs/PowerBrick_PRO+_12V_20Ah_Lithium-Ion_battery.pdf
Retrieved October 28, 2026