FORSTER 50Ah 12.8V LiFePO4 Lithium Battery 50A-BMS Smart Bluetooth 512Wh

Product number: F12-050FBS
EAN: 4251847300785


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High-quality lead battery replacement with longer lifespan!

With the lithium-iron phosphate technology, previous lead, gel and AGM batteries can be replaced quickly and easily. The specified capacity is almost fully usable and the weight is up to 75% lower than with a comparable lead battery.

Another great advantage is the low self-discharge, which simplifies and extends the warehouse or standing time. Even if the available capacity is almost fully removed, the lithium technology with 3000 cycles enables a 7-time lifespan than previous batteries.

The standard battery series for 12V, 24V and 36V installations is offered. Both the parallel circuit for the increase in capacity and the series circuit for voltage increase up to max. 48V is possible.

Multi-Charge fashion (MCM) / compatible with common chargers
So far, lithium batteries have only been loaded with lithium chargers. This also requires a change of chargers when replacing the regular batteries to lithium. With the Forster Multi-Charge-Mode software (MCM) you can continue to use 99% of the devices such as booster, land charger or solar controller. This saves you additional costs and receives the manufacturer's guarantee for new vehicles.

Bluetooth monitoring / charging state display (SoC)
Batteries with integrated Bluetooth monitoring enable you to display the most important battery data on your smartphone or tablet. The free "Forster Smart Connect" app shows you the following data in real time:

  •  Calculation of the battery
  •  Remaining term with current consumption
  •  Tension of the battery
  •  Nominal capacity of the battery
  •  Charging and unloading flow
  •  Temperature of the battery
  •  Cycling and unloading cycles
  •  Warning notification of limit values

Security / Safety First
The latest lithium-iron phosphate technology offers a high degree of self-safety, so that a risk of explosion is excluded even under the most extreme conditions. A LIFEPO4 battery consists of individual cells connected in series and a battery management system (BMS). The BMS safely monitors and protects the battery cells when charging and unloading. The standard BMS from Forster takes over the following safety functions:

  •  Overload protection
  •  Deep discharge
  •  Overvoltage protection
  •  Active cell balancing
  •  Charging control
  •  Cell-Frost-Control (CFC), charging current reduction below 0 ° C
  •  Multi-Charge fashion (MCM) Compared with common chargers
  •  Temperature cell monitoring
  •  Temperature BMS monitoring

Product quality

The independent German development of the battery management system is the basis for our quality standards. In addition, Forster individual batteries not only checks and documents in the production but also all batteries on the shipping day again before delivery.

5 year guarantee

As a manufacturer, Forster Individual Batteries grants a 5 -year guarantee on the battery advertised with the promise of guarantee.

Technical specifications

You can find all information about this here.

Data / order no.:






Replaced lead-gel-agm battery


nominal voltage


Energy content


Operating voltage

11.0V - 14.6V

Application in parallel circuit

Yes, max. 4 pieces of the same type possible

Application of series circuit

Yes, 24V, 36V and a maximum of 48V possible

Cell technology

Lithium lifepo4

Cell type

PPC Prismatic-Power cells

Loading programs

CCCV / iu / iuou / lead acid

Laddling tension

14.0V - 14.6V


13.3 - 13.8V

Max. Charging current / loading time

40A / 60min

Recommended charging current


Max.entladestrom / 3 sec.


Permanent entertainment current


Battery shutdown


BMS Battery Management System


Remote monitoring integrated with app



Yes, installed

Protection class


Cycles / lifespan at 50% DOD


Cycles / lifespan at 80% DOD


Cycles / lifespan at 90% DOD


Temperature when charging

0 ° C to 50 ° C

Thermo Control (TC)

n / A

Temporariness in the event of discharge

Minus 20 ° C to plus 60 ° C

Recommended storage temperature

-5 ° C to 25 ° C


60 - 80% loaded / Load the battery every 6 months in non -use, battery

Self -discharge

2-3% / month


M8 interior thread

Pluspol arrangement

front left

Final pole

M8 interior thread







Installation position

arbitrarily, standing, lying, side, upright, head over




5 years


UN38.3 | MSDS | CE | Raw

Forster Ist ein führender Hersteller von Lithiumbatterien
Manufacturer website

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