MB-502

Compact NP-F550H/F570H battery replacement with USB-C charging

Mathorn MB-502 is a fully compatible replacement for Sony NP-F550 batteries. It is built using two LG INR18650MJ1 cells, delivering a total capacity of 3500 mAh and 25.2 Wh of energy. Thanks to its compact size and low weight, the MB-502 is well suited for powering lightweight photo and video accessories. It is an ideal choice for:

  • on-camera and field monitors,
  • video recorders,
  • LED panels with low to medium power consumption,
  • wireless video transmission systems,
  • camera accessories mounted on rigs and gimbals.

The battery can be charged either in a standard NP-F charger, with charging current up to 3.2 A (27 W), or via the USB-C input (5 V / 2.3 A, up to 12 W). This allows convenient charging from a mains charger, car charger or power bank. A built-in LED indicates both the charging process and when charging is complete.

Warranty and safety

During its service life, a battery may be used in a wide range of conditions that are not always optimal. For this reason, every Mathorn battery is equipped with a full set of modern active and passive safety protections, including overcurrent, overvoltage, short-circuit and thermal protection. These safeguards reduce the risk of damage to both the battery and connected devices, extending the period of safe and reliable operation. As a result, each battery is covered by an extensive 3-year warranty.

Key features:

  • high-current LG INR18650MJ1 cells with a capacity of 3500 mAh and 25.2 Wh of energy
  • continuous output power via NP-F connector: 42 W
  • USB-C charging input: 5 V / 2.3 A (12 W)
  • LED indicator showing charging status
  • popular and widely used NP-F connector
  • compact design and low weight of approx. 80 g
  • capacity and current performance verified under real operating load
  • service life of up to 700 full charge and discharge cycles
  • microprocessor-controlled BMS with thermal, current, voltage and overload protection
  • 3-year warranty

Technical specification

Parameter Value
Nominal capacity / Energy 3500 mAh / 25.2Wh
Nominal voltage / Charging voltage 7,4 V / 8,4V
Max continuous output power 42W
Charging voltage and current 8.4V/3.2A (27W)
USB C Input for charging 5V/2.3A (12V)
Wymiary 71x39x27mm
Waga 77 g (+/- 5g)