LiFePO4 lithium battery 0.58 kWh - PowerBrick+ PB+12/45 12.8 V 45 Ah – IP65
PowerBrick+ lithium battery designed to power 12 V equipment and provide energy storage on a solar battery in remote locations, on site or on the move. It uses LiFePO4 chemistry with cylindrical cells and an integrated BMS, which monitors charging/discharging, temperature and balancing to ensure safe use. It is suitable if you are looking for an IP65 waterproof battery designed for high current draws.
- Specifications: 0.58 kWh (12.8 V, 45 Ah). Energy efficiency > 98%. 3,000 cycles at 100% DoD @ 1C and 4,500 cycles at 80% DoD @ 1C.
- Cells: cylindrical LiFePO4 cells, designed to provide a steady 12 V power supply over repeated energy storage cycles.
- BMS + communication: integrated BMS with current, cell voltage and temperature monitoring, and balancing management; BMS cut-off during charging at 14.8 V and BMS cut-off during discharging at 10 V.
- Compatibility + scalability: It allows you to build a modular system with up to 4 batteries in series (up to 48 V) and up to 16 batteries in parallel, in order to increase capacity and autonomy.
Compatible sous condition :

PowerBrick+ 12V 45Ah Lithium Battery PB+12/45

The PowerBrick+ 12V-45Ah battery offers an energy capacity of 0.58 kWh in a compact format. Utilising Lithium Iron Phosphate (LiFePO4) technology, it is the ideal solution for those seeking reliable runtime, unrivalled lightness and maximum safety for their on-board or stationary equipment.
Boosted runtime and feather-light weight
- 0.58 kWh of energy: A true capacity of 45Ah available to power your devices for longer.
- High-performance replacement: With its 100% discharge rate, it is a superior replacement for a 90Ah to 100Ah lead-acid/AGM battery, whilst weighing two to three times less.
- Robust IP65 design: Its waterproof casing ensures total protection against dust and water splashes, ideal for marine environments or outdoor use.
Intelligence and safety: The state-of-the-art BMS
Thanks to its integrated battery management system (BMS), the battery autonomously manages its own safety:
- Constant monitoring: Protects against overcharging, deep discharge and current spikes.
- Cell optimisation: Automatic balancing extends the service life to over 10 years.
- Thermal stability: LiFePO4 chemistry is the safest on the market, with no risk of explosion or fire.
Simplified "Plug & Play" installation
- Full compatibility: Replaces your old lead-acid, AGM or gel batteries without the need for complex modifications to your system.
- Can be mounted in any position: Can be installed upright, on its side or even upside down.
- Maintenance-free: No need to top up with water, no gassing, no corrosion.
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Important notice for our customers in Belgium:An environmental levy of €15.49 excl. VAT must be applied to the purchase of each PowerBrick+ PB+12/45 - 45 Ah lithium battery. Please add the corresponding product when purchasing this lithium battery. More information at the bottom of the page. |
Flexibility and modularity
Designed to grow with your needs, the PowerBrick+ range allows for multiple configurations:
| Technical Specifications: PB+12/45 (45Ah / 0.58kWh) | |
|---|---|
| Capacity / Energy | 45 Ah / 576 Wh (0.58 kWh) |
| Series connection | Up to 4 units (12V, 24V, 36V or 48V systems) |
| Parallel connection | Up to 15 units to increase range |
| Typical applications | Boating, motorhome power supply, off-grid solar, UPS. |
Exceptional performance and longevity
- Lifespan: Over 3,000 cycles at 80% depth of discharge (DOD), ensuring a cost-effective investment in the long term.
- Bluetooth connectivity: Precise monitoring via a dedicated app (charge status, current, temperature).
- Energy efficiency: Very low self-discharge (< 3% per month) and charge efficiency close to 100%.
- Warranty: Product covered by a 2-year warranty, extendable to 5 years.
Environmental Commitment
Lithium Iron Phosphate technology is a clean storage solution: no lead, no cadmium, no mercury. Its IP65-rated housing and mechanical robustness make it a durable product, reducing the need for frequent replacement.
Dimensions

| Technical Specifications: 12.8V 45Ah Lithium Battery | |
|---|---|
| ELECTRICAL SPECIFICATIONS | |
| Nominal voltage | 12.8 V |
| Nominal capacity | 45 Ah |
| Energy | 576 Wh |
| Internal resistance | ≤ 50 mΩ |
| Number of cycles / Efficiency | > 3000 cycles / > 98% |
| Self-discharge | < 3% per month |
| STANDARD LOAD | |
| Charge voltage | 14.4 V ± 0.2 V |
| Charging mode | CC/CV (Constant Current / Constant Voltage) |
| Charging current (Std / Max) | 25 A / 45 A |
| BMS cut-off voltage | 14.8 V ± 0.1 V |
| STANDARD DISCHARGE | |
| Continuous discharge current | 55 A (704 W) |
| Maximum current (< 30 s) | 90 A (1,152 W) |
| Instantaneous peak (max 100 ms) | 150 A ± 20 A |
| BMS cut-off voltage | 10 V |
| ENVIRONMENT | |
| Temperature range | Charge: 0°C to +60°C / Discharge: -20°C to +60°C |
| Storage | 0°C to +50°C (@60±25% RH) |
| Protection rating | IP 65 |
| MECHANICAL | |
| Sensor type / Housing | Cylindrical / ABS |
| Dimensions (W x D x H) | 196 x 135 x 172 mm |
| Weight | 5.36 kg |
| Terminal | M6 bolt |

Specific Information for Belgian Customers - Bebat Tax
As part of our commitment to regulatory compliance and environmental responsibility in Belgium, we would like to inform our customers that the purchase of a PowerBrick+PB+12/45 - 45 Ah lithium battery is subject to a mandatory environmental levy.
An amount of €15.49 (excl. VAT) must be added for each battery purchased, as a direct contribution to Bebat, the organisation responsible for the management of batteries and accumulators in Belgium. This measure is in accordance with current Belgian environmental legislation.
Important: When purchasing a lithium battery, please add the corresponding product "Bebat Environmental Levy PowerBrick+ PB+12/45 - 45 Ah" according to the number of batteries you are ordering. Otherwise, we will recalculate and invoice the amount after purchase.
This tax applies only to Belgian customers.
FAQ - PowerBrick+ 12V 45Ah Lithium Battery
Data sheet
- Cycles
- More than 3000 cycles
- Storage temperature
- 0°C to +50°C @60±25% relative humidity
- Voltage
- 12V
- Technology
- Lithium
- Battery capacity
- 45Ah
- Width
- 196 mm
- Height
- 172 mm
- Thickness
- 135 mm
- Load current
- 25 A (Maxi continu : 45A)
- Max. discharge current
- 90 A (1.152 kW)
90 A (1.152 kW) - IP protection
- IP 66
IP65 - Weight
- 5,36 kg
- Discharge temperature
- -20°C to +60°C
- Load temperature
- 0°C to +60°C
- Usable energy
- 576 Wh
- Charging voltage
- 14.4 V ± 0.2V
- BMS cut-off voltage
- 14.8 V ± 0.1V
Décharge standard 10 V - Instantaneous peak discharge current
- 150 A ± 20 A (max 100mS)
- DC discharge current
- 55 A (704 W)
Specific References
- UPC
- 768563817014
- EAN13
- 0768563817014
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LiFePO4 lithium battery 0.58 kWh - PowerBrick+ PB+12/45 12.8 V 45 Ah – IP65 — Lithium battery
LiFePO4 lithium battery 0.58 kWh - PowerBrick+ PB+12/45 12.8 V 45 Ah – IP65 by PowerBrick+ is available in our Lithium battery catalog. Technical specifications: cycles: More than 3000 cycles, storage temperature: 0°C to +50°C @60±25% relative humidity, voltage: 12V, technology: Lithium, battery capacity: 45Ah, width: 196 mm, height: 172 mm, thickness: 135 mm, load current: 25 A (Maxi continu : 45A), max. discharge current: 90 A (1.152 kW) 90 A (1.152 kW), ip protection: IP 66 IP65 , weight: 5,36 kg, discharge temperature: -20°C to +60°C, load temperature: 0°C to +60°C, usable energy: 576 Wh, charging voltage: 14.4 V ± 0.2V, bms cut-off voltage: 14.8 V ± 0.1V Décharge standard 10 V, instantaneous peak discharge current: 150 A ± 20 A (max 100mS), dc discharge current: 55 A (704 W). Product weight: 5.4 kg. Reference: PB+12/45.
