Lead-Acid/Lithium Battery Pack Series Charge-Discharge Tester SF-20

Item No.: SF-20
Input Power: AC200V~245V50/60HZ
Applicable Batteries:  Lead-Acid/Lithium batteries
Charge Con-Voltage: 9V-99V
Discharge Cut-off Voltage: 9V-99V
Discharge Current: 0.5A-20A
Charge Current: 0.5A-10A
Operation Method: Panel
The Lead-Acid & Lithium Battery Series Charge Discharge Tester SF20 integrated with the function of a high-precision capacity series discharging test and a high-precision series charging test. With a wide voltage detection range from 9V to 99V which make it can measure varieties of batteries from 12V-84V. Charging test and discharge test can be performed for lead-acid batteries, lithium batteries and other types of batteries. The maximum charge & discharge cycle index is 99 times, which can also be used as the aging equipment in the battery production.

It is a high-precision-specific instrument suitable for electric vehicle & battery manufacturers and its dealers to test the performance of the battery pack. And it can be widely used in battery testing and maintenance, production, sales, and after-sales service as an efficient & intelligent battery testing and maintenance equipment.

Applicable Batteries:
Lithium battery packs, lead-acid batteries


- 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) setting 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
Maximum cycle number is 99, which can be used as battery aging equipment.
- 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.
Modular design, easy maintenance and replacement of accessories 

Technical Specification:
Model No.: SF20
Items Parameter
Input Voltage: AC 220V± 10% 50Hz
Input Power: 900 W
Applicable Battery Types: Lithium-ion and lead-acid battery pack
Auto cycle charge and discharge
Data record and inquire
Maximum Charge Voltage: 9V-99V, 0.1V stepping
Discharge Cut-off Voltage: 9V-99V, 0.1V stepping
Minimum Discharge Voltage: 9V
Tolerance: <0.03V
Charge Current: 0.5 – 10 A adjustable
Charge Cut-off Current: 0.1 – 5 A adjustable
Discharge Current: 9V-21V: 0.5-10A adjustable
21V-99V: 0.5-20A adjustable
Tolerance: <0.03A
Charge Mode: Constant current & voltage charge
Cut-off Conditions: Voltage, current, time
Discharge Mode: Constant current discharge
Cut-off Conditions: Voltage
Cycle Index: 1-99 times
Idle time between CHG & DCG: 0-20 min adjustable
IP Grade IP20
Voltage & Current Test Sampling Five-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.:                   SF20

Product Size(L*W*H):  46.5*45*14.5 cm
Pcs/Ctn:                          1 pcs/ctn
Package Size(L*W*H):    
58*51.5*24.5 cm
G.W.:                                16.45 kgs
N.W.:                                14.45 kgs
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