Storage Battery Charge Discharge Tester SF300-6

Item No.: SF300-6
Input Power: AC200V~245V50/60HZ
Applicable Batteries: 6V/8V/12V/16V/18V Lead-acid batteries
Charge Con-Voltage: 7V-23V
Discharge Cut-off Voltage: 2V-20V
Discharge Current: 0.5A-30A
Charge Current: 0.5A-20A
Operation Method: Panel
SF300 is a precision battery performance test instrument integrated with charge & discharge, auto-cycle detection, it can set the voltage and current of charge and discharge by the user, and has automatic charging and discharging cycle function, the max. cycle number is up to 50 times. The instrument provides 7 work modes for easy operation. SF300 is a precision test instrument for battery manufacturers, electric vehicle manufacturers, and its dealers to process the battery test, regular maintenance, and after-sale service.

It's an essential instrument for battery performance testing & scheduled maintenance to prolong the service life of the batteries.

A number of SF300 modules can be assembled into a testing system to meet the needs of mass testing.

Battery Charge Discharge Testing System

Applicable Batteries:
6V/8V/12V/16V/18V Lead-acid batteries, recommended capacity:<65 AH.


- Instrument displays by LCD, each index is clear at a glance.
- The parameter setup and parameter switching are set and switched by a “START” switch and a “SET” knob. All parameters(voltage, current, mode) settings have the saving function.
- Intelligent speed fan can run continuously, delay the power-off of the fan, and blow off the remaining heat.
- Polarity protection, anti-reverse connection, and so on.
- Each circuit is the independent module, no influence each other
- The instrument has simple mode and professional mode for choice to meet the different requirements of the user.
- Data protection startup: If the connection cables disconnected from the battery during the charging and discharging, after reconnecting the cables with the battery, press and hold the “Start” button to continue working.
- Power-off memory function.

Operation Modes:

7 Work Modes
Mode Code Descriptions
0 Query mode of historical loop data
1 Capacity discharging test
2 Typical charge
3 Loop mode 3: Starting with discharge and ending with charge
                       Max. loop number: 50 times
4 Loop mode 4: Starting with charge and ending with charge
                       Max. loop number: 50 times
5 Loop mode 5: Starting with discharge and ending with discharge
                       Max. loop number: 50 times
6 Loop mode 6: Starting with charge and ending with discharge
                       Max. loop number: 50 times

Technical Specification:
Model No.: SF300-5/6
Items Parameter
Input Voltage: AC 220 V± 10% 50 Hz / 60 Hz
Input Power:
No-load: SF300-5 SF300-6
  90W 100W
Full-load: SF300-5 SF300-6
  2500W 3000W
Applicable Battery Types: 6 V, 12 V, 16 V, 18V Storage Batteries
Auto cycle charge and discharge
Data record and inquire
Max. Charge Voltage: 23 V
Min. Charge Voltage: 7V
Amplitude Of Adjustment: 0.1 V stepping
Charge Voltage Tolerance: ± 0.5 V
Max. Discharge Cut-off Voltage: 20 V
Min. Discharge Cut-off Voltage: 2 V
Amplitude Of Adjustment: 0.1 V stepping
Discharge Voltage Tolerance: ± 0.03 V
Charge Current: 0.5 A – 20 A adjustable
Amplitude Of Adjustment: 0.1 A stepping
Charge Current Tolerance: ± 0.1 A
Discharge Current: 0.5 A – 30 A adjustable
Amplitude Of Adjustment: 0.1 A stepping
Discharge Current Tolerance: ± 0.03 A
Charge Mode: Constant current & voltage charge
Cut-off Conditions: When reaching high constant voltage, the system will automatically switch to trickle charge after charging for 3.5 hours or the charging current is less than 0.3A
Discharge Mode: Constant current discharge
Cut-off Conditions: Voltage
Cycle Max. Cycle Index: 50 Times
Power-down protection
Reverse connection protection
Over-temperature protection
Over-voltage protection
Short-circuit protection
IP Grade IP20
Channel Control Mode Independent control
High Voltage Insulation Between Channels AC1000V/2min Normal
Data Display LCD
Operation Method Panel
Voltage & Current Test Sampling Four-core wires connection
Noise < 76 dB
Upper Computer Communication None
Communication Port None
Equipment Work Ambient Conditions
Operation Ambient Temperature 0 ℃ - 40 ℃
Storage Temperature -10 ℃ - 50 ℃
Operation Ambient Humidity ≤ 70 % RH (No condensation)
Storage Ambient Humidity ≤ 80 % RH (No condensation)


LCD Interface

Packing  Information:
Model No.: SF300-5 SF300-6
Product Size(L*W*H): 65.5*40*17 cm         78*40*17 cm         
Pcs/Ctn: 1 pcs/ctn 1 pcs/ctn
Package Size(L*W*H): 77.5*49*30 cm 91.5*49*30  cm
G.W.:  19.50 kgs 23.50 kgs
N.W.: 17.50 kgs 21.50 kgs
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