PowerBrick+ 12V 45Ah lithium battery

PowerTech Systems

619,00 € tax incl.

The Lithium-Ion PowerBrick+ 12V-45Ah battery offers great safety through the use of cylindrical cells in Lithium Ferro Phosphate (LiFePO4 or LFP) technology.

Dimensions (mm): 196 x 135 x 172

Weight (Kg) : 5,36


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Background PowerBrick+ 12V 40Ah


Lithium PowerBrick+ 12V 45Ah battery



Battery PowerBrick+ 12V 45AhThe Lithium-Ion PowerBrick+ 12V-45Ah battery offers great safety through the use of cylindrical cells in Lithium Ferro Phosphate (LiFePO4 or LFP) technology.

The PowerBrick 12V-45Ah integrates in its case an innovative control system (BMS) to ensure a very high level of safety in use. The BMS constantly controls and balances the battery cells, in order to protect the battery and increase its life. The BMS also protects the battery from any mishandling: deep discharge, charging voltage too high, etc.

The PowerBrick+ range has been designed to replace lead-only batteries advantageously, offering a quadrupled energy density for an equivalent weight and footprint. Due to its technology, the PowerBrick+ 12V-45Ah lithium battery can be installed in any position (vertically, lying on the side or upside down).

The electrical parameters of the PowerBrick+ 12V-45Ah lithium battery are compatible in all respects with those of a 12V AGM lead battery. In the vast majority of cases, the charging system can be kept identical and no additional accessories are needed to perform the replacement.

Since a PowerBrick+ battery can be discharged to 100% of its capacity, an AGM lead battery can be replaced by PowerBrick+ with a capacity 2x lower than that of the lead-only battery (e.g. a 50Ah PowerBrick+ replaces a 100Ah AGM battery).

The Lithium PowerBrick + 12V-45Ah battery has a rated voltage of 12.8V. It can be easily assembled in series (up to 4 batteries in series) and in parallel (up to 15 batteries).

The voltage of the final assembly can be 12V and up to 48V (for 4 packs assembled in series), which meets the needs of almost all electrical applications of traction, solar or wind storage, servitude, robotics, trolleys, etc.

The battery is protected by a waterproof ABS box, resistant to splashes of water and dust (PROTECTION INDEX IP65).

PowerBrick+ products are lightweight, compact, high-performance and can be used for all types of uses and applications. The PowerBrick+ directly replace older generation batteries (VRLA Lead, AGM or OPZ batteries) in 12V, low performance and harmful to the environment (use of heavy metals and complexity of recycling).

The PowerBrick+ range benefits from a commercial warranty of 2 years, expandable to 5 years


Lithium LiFePo 45Ah batteries

  • Very high service life: from 3000 cycles to several ten thousand
  • Possible deep discharges (up to 100%)
  • Completely secure Lithium Iron Phosphate technology (no risk of explosion or self-ignition)
  • BMS (Battery Management System) integrated into the case: maximizes the life and secures the battery
  • Very low toxicity to the environment
  • Calendar life > 10 years
  • Excellent temperature resistance (-20 °C to +60 °C)
  • Flexible system: up to 16 packs in parallel and 4 in series
  • Constant power throughout the discharge (low internal resistance)
  • Very low Peukert losses (energy efficiency >98%)
  • Very low self-discharge (<3% per month)
  • No lead, no rare earths, no acid, no degassing
  • Weight gain > 50% and 40% less footprint compared to lead-down batteries
  • Certification: CE, RoHS, UN 38.3

Important points

  • 12V-45Ah battery pack in technology – Lithium Iron Phosphate (LiFePO4 – LFP)
  • Rated Voltage: 12.8V
  • Stored energy: 576 Wh
  • New high-performance waterproof cylindrical cell
  • 3000 cycles at 100% DoD @ 1C (see technical graphs)
  • 4500 cycles at 80% DoD @ 1C (see technical graphs)
  • Energy efficiency of 98%
  • Weight: 5.36Kg
  • Dimensions: 196mm x 135mm x 172mm
  • Instantaneous peak discharge current: 150A ±20A (max 100mS)
  • Continuous discharge current: 55A (704W)
  • Maximum discharge current (< 30s): 90A (1.152kW)
  • Maximum load current: 45A
  • Total safety provided by a BMS (Battery Management System) integrated into the case
  • Cell current and voltage monitoring, temperature, cell balancing, etc.
  • Intelligent balancing algorithm
  • 100% maintenance-free
  • Series assembly from 12V to 48V (1 to 4 units in series)
  • Parallel assembly up to 16 units (12V-720Ah / 9.22kWh)
  • Robust design in an insulated and waterproof case (Protection rating: IP65)
  • La charge temperature: from 0°C to +60°C
  • Temperature of use in landfill: from -20°C to +60°C
  • Waterproof ABS case (IP65)
  • CE, RoHS and UN38.3 certification
  • Commercial warranty of 2 years as standard, expandable to 5 years


Size PowerBrick+ 12V 45Ah



Nominal voltage 12.8 V
Nominal capacity 45 Ah
Energy 576 Wh
Internal resistance ≤ 50mΩ
Number of cycles >3000 cycles
Self-discharge < 3% per month
energy efficiency > 98%
Charging voltage 14.4 V +- 0.2V
Charging mode CC/CV: Constant Current / Constant Voltage
Standard charging current (Max direct current) 25A (Continuous maxi: 45A)
Instantaneous peak discharge current 150 A +- 20 A (max 100mS)
Discharge dc current 55 A (704 W)
Maximum discharge current (< 30s) 90 A (1,152 W)
Charging temperature 0°C to +60°C
Discharge temperature -20°C to +60°C
Storage temperature 0°C to +50°C @60±25% relative humidity
Protection IP IP 65
Cell type cylindrical
package ABS
Dimensions (L x D x H)196 x 135 x 172 mm
weight 5.36 kg
terminal M6 bolt


Battery capacity45Ah
Weight5,36 kg
Width196 mm
Height172 mm
Thickness135 mm
Charging current25 A (Maxi continu : 45A)
Courant continu de décharge90 A (1.152 kW)
Protection IPIP 66