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Lithium Ion battery 12V 40Ah – LiFePO4 – PowerBrick®

Rated 5 out of 5 based on 7 customer ratings
(7 customer reviews)

403.00 € – 580.00 €

LiFePO4 Battery pack 12V-40Ah
with built-in BMS (Battery management System)

What difference between STANDARD and PRO ?
Clear
Lithium Ion battery 12V 40Ah – LiFePO4 – PowerBrick®

Key Points

PowerBrick Standard
PowerBrick Pro+
New cell Generation
+ matched cells
Operation Life
2000 Cycles at 100% DoD
3000 Cycles at 80% DoD
3000 Cycles at 100% DoD
4500 Cycles at 80% DoD
Continuous discharge current
35A (450W)
50A (640W)
30s continuous discharge
50A (640W)
80A (1024W)
Maximum continuous charge
20A
40A
Serial assembly
up to 4 units in series
Parallel assembly
up to 4 units
up to 10 units
Protection
Sealed case IP55
(More...)
Sealed case IP66
(More...)
Energy Efficiency
96%
98%
Commercial warranty
2 years
Up to 5 years

Key Points

    • Battery pack using Lithium Iron Phosphate (LFP) technology
    • Nominal voltage : 12.8V
    • Long life : 2000 – 5000 Cycles
    • Weight : 5.25 Kg
    • Dimensions : 196mm x 135mm x 172 mm
    • High safety with advanced Built-in Battery Management System
    • Monitoring of cell and PCB temperature, current, voltage, reverse polarity, etc.
    • Can be connected in parallel up to 4 units or 10 units (Pro Version)
    • Can be connected in series up to 4 units
    • PowerBrick Standard : 3000 cycles at 80% DOD (see chart tab)
    • PowerBrick PRO+ : 4500 cycles at 80% DOD (see chart tab)
    • Operating temperature in charge : 0°C à +60°C
    • Operating temperature in discharge: -15°C à +60°C
    • 100% Maintenance free
    • RoHS et UN38.3 certification
PowerBrick Lithium Ion battery 2 years warranty PowerBrick Lithium Ion battery 5 years warranty

Lithium Ion battery 12V-40Ah - LiFePO4 - PowerBrick®

This Lithium-ion 12V-40Ah battery has been designed thanks to the know-how of PowerTech Systems, french company specialized in the conception of high performance lithium-ion batteries.

Safety

The PowerBrick® 12V-40Ah battery offers a high level of safety through the use of cylindrical cells using Lithium Iron Phosphate LiFe (LiFePO4) technology. the battery embeds an innovative control system (BMS, Battery Management System) that ensures a very high level of safety during operation. The BMS constantly monitors and balances the cells of the battery. BMS also protects battery from misuse and increases its lifespan.

The 12V-40Ah lithium battery is protected by a waterproof ABS case that resists to water projection and dust (IP55 for PowerBrick® STANDARD battery or IP66 for PowerBrick® PRO+ version).

Designed for Drop-In replacement of lead-acid batteries

The PowerBrick® product line has been designed to replace lead-acid batteries. It offers high energy density, for a low weight and a small space requirement.
The electrical parameters of PowerBrick® are compatible in all respects with those of a 12V lead-acid battery. There is almost never need to replace original charger to use a PowerBrick®, as soon as the charger is delivering voltage within the product specification.

Easy installation

Each PowerBrick 12V-40Ah lithium battery has a nominal voltage of 12.8V. It can be connected in series (up to 4 batteries in series) and in parallel (up to 10 batteries). Thanks to its technology, the PowerBrick 12V-40Ah battery can be installed in any position (lying on the side, upside down, etc.).
The final assembly voltage can be from 12V, up to 48V (with 4 elements in series). This covers almost most common electrical applications (traction, solar storage, wind power).
For an application with a voltage greater than 75VDC, the installer must be trained to the risks of low voltage (LV)

The 12V-40Ah LFP battery pack is ideal for wind and solar energy storage, AGV (automated guided vehicle), marine, boats, traction, small EV, forklifts, robotics, and much more...

Lithium Iron Phosphate (LiFePO4) batteries have a lower ecological footprint

The PowerBrick® 12V-40Ah is designed to drop-in replacement of old generation Lead acid batteries. VRLA and AGM batteries provides poor performances and are harmful for the environment through the use of heavy metals and acid electrolytes.

Commercial Warranty

PowerBrick Lithium Ion battery 2 years warranty PowerBrick Lithium Ion battery 5 years warranty

Technical Charts

PowerBrick 12V-40Ah - Discharge Curves at different rates
PowerBrick 12V-40Ah
Discharge curves at different rates
PowerBrick 12V-40Ah - Discharge Curves at different temperatures
PowerBrick 12V-40Ah
Discharge curves at different temperatures
PowerBrick 12V-40Ah - Voltage Curves as a function of State Of Charge
PowerBrick 12V-40Ah
Voltage Curves as a function of State Of Charge
PowerBrick 12V-40Ah - Charge Curves at 0.5C rate
PowerBrick 12V-40Ah
Charge Curves
at 0.5C rate
PowerBrick 12V-40Ah - Expected cycle life at different Depth of Discharge (DoD)
PowerBrick STANDARD 12V-40Ah
Expected cycle life at different Depth of Discharge (DoD)
PowerBrick 12V-40Ah - Expected cycle life at different Depth of Discharge (DoD)
PowerBrick PRO+ 12V-40Ah
Expected cycle life at different Depth of Discharge (DoD)
PowerBrick 12V-40Ah - Self-Discharge as a function of time and temperature
PowerBrick 12V-40Ah
Self-Discharge as a function of time and temperature

Dimensions

PowerBrick 12V-40Ah - Power Terminal
Power Terminal
PowerBrick 12V-40Ah - Side
Dimensions
Side view
PowerBrick 12V-40Ah - Top
Dimensions
Top view

Frequently Asked Questions - PowerBrick® product line

What are the differences between PowerBrick® Standard and PowerBrick® Pro version ?

The main differences between the professional range (PowerBrick® Pro+) and the consumer range (PowerBrick® Standard) are:

  • The Standard range uses high quality LiFePO4 Lithium cells which allow to reach 2000 cycles at 100% depth of discharge at 1C.
  • The PRO+ range uses a new generation of Lithium cells, with better performance. These cells allow to reach 4500 cycles at 80% DoD.
    In addition, these cells are sorted and matched for the constitution of the pack. This guarantees a homogeneous ageing over time and better performances.
  • The Pro+ range uses a more robust embedded BMS that allows higher power levels than the Standard range. This is particularly useful for applications using high inrush currents (starting an electric motor, accelerating a vehicle, starting a microwave oven, refrigerator, air conditioning, etc.)
  • Different IP (International Protection) level of the product enclosure.
  • Limitation on the number of battery that can be assembled in series and / or parallel.
  • Higher energy efficiency for the PRO+ range
  • Warranty period limited to 2 years on the standard range, 5 years for the professional range.

All datasheets are available for each product, making it possible to compare the performances of the different products.

For example, here are the differences between the two ranges for the PowerBrick 12V-100Ah:

PowerBrick Standard
PowerBrick Standard
PowerBrick Pro+
PowerBrick Pro+
New cell Generation
+ matched cells
Operation Life
2000 Cycles at 100% DoD
3000 Cycles at 80% DoD
3000 Cycles at 100% DoD
4500 Cycles at 80% DoD
Continuous discharge current
80A (1kW)
125A (1.6kW)
30s continuous discharge
130A (1.7kW)
200A (2.56kW)
Maximum continuous charge
50A
100A
Serial assembly
up to 4 units in series
Parallel assembly
up to 4 units
up to 10 units
Protection
Sealed case IP55
(More…)
Sealed case IP66
(More…)
Energy Efficiency
96%
98%
Commercial warranty
2 years
Up to 5 years
How safe are Lithium-Ion PowerBrick® batteries ?

PowerBrick® batteries are using Lithium Iron Phosphate chemistry (LFP) that is one of the most safe Lithium-Ion technology. This chemistry is not subject to thermal runaway, is non-flammable and is considered as non-hazardous by international regulation standards.

Each battery is fitted with a high quality Battery Management System (BMS) that ensure a safeguard role during battery operation. The BMS is designed to deliver high power in complete safety for a very large spectrum of applications,

What can i use PowerBrick® battery for ?

PowerBrick® batteries are commonly used for Marine, Recreational vehicles, Golf Cart applications, CCTV, robotics, PV energy storage, etc. PowerBrick® Battery can be used for any system or application that would normally use Lead acid battery (AGM, GEL) in 12V, up to 48V.

After removing your old batteries, place PowerBrick® battery in the same way. You may use the same cables to reconnect PowerBrick® battery.

Do i need to recharge battery immediately after operation ?

PowerBrick® lithium-ion 12V or 48V batteries can be partially charged or discharged unlike Lead Acid batteries that needs to be fully charged after use or before storage. For instance, you can leave your battery half charged for some weeks without any issue.

If you plan to store battery for a long period (> 2 month), you need to charge battery at minimum 25% of SoC (State of Charge) before storage. It is necessary to check battery voltage every 6 month during storage.

How do I charge a PowerBrick® Lithium-ion battery ?

PowerBrick® lithium ion technology uses the latest and most advanced built-in battery management system (BMS) to monitor and prevent damage to the battery during use. You may utilize a Lead-acid charger with PowerBrick® Lithium battery, but some customers prefers using a Lithium charger to keep a better lifespan.

Several charging sources are possible:

  • Alternator: Most alternators (marine, RV, cars) will efficiently charge PowerBrick® lithium ion technology as soon alternator charge voltage is between 14.0V and 14.6V (for a 12V battery)
  • Conventional Lead-Acid battery charger: PowerBrick® Battery Management System (BMS) is designed to be compatible with standard chargers. You need to check that charger has a built-in CC/CV charge algorithm (Constant Current / Constant Voltage) and charger maximum voltage is comprised between 14.0V and 14.6V (for a 12V battery)
  • Lithium-Ion charger: This is the best way to charge PowerBrick® Lithium-ion battery. These chargers embeds some dedicated charge algorithm with precise charge voltage. It also manage efficiently charge floating voltage and duration in order to maximize battery life span.
How long does a PowerBrick® battery last ?

PowerBrick® batteries using Lithium-Iron-Phosphate technology and equipped with advanced BMS system, offer the following features:

  • PowerBrick Standard: 2000 charge-discharge cycles at 100% DoD (depth of discharge). 3000 Cycles at 80% DoD
  • PowerBrick Pro+ : 3000 charge-discharge cycles at 100% DoD (depth of discharge). 4500 Cycles at 80% DoD
Once this number of cycles has been completed, the battery will still be able to deliver about 80% of its initial energy.
  • Example #1: A PowerBrick Pro+® 12v-100Ah, after being discharged at 80% DoD during 4500 cycles, is now a 12V battery with a capacity of 80Ah.
  • Example #2: A PowerBrick Standard® 12v-100Ah, after being discharged at 100% DoD during 2000 cycles, is now a 12V battery with a capacity of 80Ah

In term of time duration, If you discharge 80% of the PowerBrick® and then recharge it every day, 7 days a week for height years, you will still have 80% of usable battery energy left. This is a large increase in lifespan compared to a conventional Lead Acid battery (AGM, Gel) rated at 500 cycles for 50% DoD cycles.

What is the Battery Management System (BMS) and how does it work ?

Each PowerBrick® embeds a built-in BMS. This BMS is a high-tech design that manage two main aspects of battery during operation :

Protection features :
  • Low Voltage Protection Switch – Automatically disconnects at 10.0V
  • Over Voltage Protection Switch – Automatically disconnects at 14.8V
  • Short Circuit Protection Switch – Automatically and safely disconnects battery
  • Reverse Polarity Protection Switch – Automatically and safely disconnects battery
  • Over temperature – Automatically shut-down battery until normal temperature recovery
Balancing features :
  • Internal cell balancing – Automatically balances PowerBrick® cells during battery operation. Balancing algorithm has been developed to ensure perfect balance between cells throughout battery life.
  • Charge Balancing – for PowerBrick® connected in parallel and/or in series, the BMS will balance each PowerBrick® independently, in order to provide a constantly balanced battery system.
How to place Lithium-Ion batteries?

The PowerBrick® products are designed around an assembly of sealed cells. There is no risk of electrolyte leak. The whole of the block cells and embarked electronics is firmly fixed in the battery casing.

All our batteries can be placed in any positions (tilted or lying). There is no obligation to install them upright, as for the conventional batteries in Lead/AGM.

Download PowerBrick 12V-40Ah Specification
PowerBrick 12V-40Ah STANDARD Specification
Download PowerBrick 12V-40Ah STANDARD Product Specification


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PowerBrick 12V-40Ah PRO Specification
Download PowerBrick 12V-40Ah PRO Product Specification

7 reviews for Lithium Ion battery 12V 40Ah – LiFePO4 – PowerBrick®

  1. Len (verified owner) –

    Thank you. I managed to easily install my battery on my boat. It is true that the space saving is incredible in addition to its light weight

  2. patrick g. (verified owner) –

  3. Antonio D. (verified owner) –

    La batterie est de bonne qualité. Je l utilise tous les week-end et pour le moment j en suis satisfait.

  4. Antonio D. (verified owner) –

    La batterie est de bonne qualité. Je l utilise tous les week-end et pour le moment j en suis satisfait.

  5. Jean-Michel EVAIN (verified owner) –

  6. jean (verified owner) –

    très satisfait, utilisée depuis un an pour mon van. par contre chargeur et indicateur de charge sont spécifiques au LiFePO4

  7. joel NOBLECOURT (verified owner) –

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