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SR LG4845 001

SR LG4845 002




  • The controller carried with LCM module which can display system status and parameters

  • Begin to ascending charging automatically when the voltage of battery below the ascending charging recover voltage

  • Temperature compensation become more accurate due to Double temperature sensors design,inner temperature sensor test the inner temperature of the controller,outer temperature sensor test the outer temperature of the controller.

  • The controller could figure out everyday’s power of charge and discharge which make user assess the controller and entire system more easily

  • With charging current overload protection function, controller will reduce charge current to protect the charging circuit after it surpass the rated current.

  • A equalizing charge every 30 days in order to prevent battery vulcanization

  • Industrial-grade chips and precision components makes the controller can operate in any harsh environment

  • Design of double MOS series control circuit and PWM dim control make the charging efficiency increased greatly

  • The parameter possess saving function which makes the parameter never be erased after losing the electricity and system become more reliable.

  • Three kinds of load work mode: purely light-operated, light-operated+time controlled,long-term on mode.






System voltage


Rate charging current


Rate load current


No load loss


Charging circuit voltage drop

Less or equal to 0.5V

Discharge circuit voltage drop

Less or equal to 0.5V

Solar input voltage


Re-entrant boost charge mode voltage

13.2V  ×2/24V; ×3/36V; ×4/48V

Over voltage protection

17.0V  ×2/24V; ×3/36V; ×4/48V

limited voltage for charging

15.5V  ×2/24V; ×3/36V; ×4/48V

Equal chargingvoltage

Boost charge voltage +0.5V

Equal charging interval


Direct charge voltage

14.4V  ×2/24V; ×3/36V; ×4/48V

Float charge voltage

13.6V  ×2/24V; ×3/36V; ×4/48V

Over discharge voltage

11.0V  ×2/24V; ×3/36V; ×4/48V

Over discharge recover voltage

12.5V  ×2/24V; ×3/36V; ×4/48V

Equal charging time


Boost voltage charging time


Temperature compensation


Light-control voltage

5V   ×2/24V; ×3/36V; ×4/48V

Light control delay


Controller over-temperature protection


Battery over-temperature protection


Working temperature

-35℃to +85℃

Control method

Charging: PWM

Time of lcd back- light auto shut down


Data auto transfer time


Time of Ledlattice closed



1.08Kg/45A  0.9Kg/30A




More Information / References

 Download - SRNE LG Series User Manual

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