Battery Testing Instrument

Contact Nouri Dassi at 518-297-3208 for information, quotes, or any questions you may have. For a physical demonstration in your laboratory, please schedule an appointment.


The HJ-201B is a low cost battery charge discharge unit ideal for testing various types of batteries. It is also suitable for development and evaluation of new batteries.


Specialized multi-channel battery charge discharge systems can easily be formed by combining multiple units of HJ-201B and multi-channel intermittent recorders. Various sizes of racks are available for this purpose. Sophisticated data analysis is also possible by interfacing the auxiliary outputs of the HJ-201B to a computer system via A/D converters.


We can also manufacture charge discharge systems to meet customers specialized requirements. Contact your local representative for details.


1. Current


• Discharge Current ranges : 1A, 100mA, 10mA, 1mA, 100µA
Setting : A 5 step rotary switch with a 10 turn vernier dial
Accuracy : <0.5% full scale


• Charge Current ranges : 1A, 100mA, 10mA, 1mA, 100µA
Setting : A 5 step rotary switch with a 10 turn vernier dial
Accuracy : <0.5% full scale


2. Voltage


• Discharge Range : -1V to 11V
Setting ranges : -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11V
Presetting : A 12 step rotary switch and a 10 turn vernier dial
Accuracy : <10mV


• Charge Range : 0V to 20V
Setting ranges : 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20V


Presetting : A 20 step rotary switch and a 10 turn vernier dial
Accuracy : <10mV


3. Timer


• Discharge Range : 0 minute~19 days 23 hours 50 minutes
Presetting : A 6-digit digital thumbwheel switch Bipassing is possible. (Zero setting) a crystal oscillator is utilized.


• Reset after Discharge Range : ditto
Presetting : ditto


• Charge Range : ditto
Presetting : ditto


• Reset after Charge Range : ditto
Presetting : ditto


4. Modes


• Constant current discharge (Before the preset voltage is reached)
Constant voltage discharge (After the preset voltage is reached)


• Reset after discharge


• Constant current charge (Before the preset voltage is reached)
Constant voltage charge (After the preset voltage is reached)


• Reset after charge


5. Switching


• T Automatic switching from one mode to another at a preset time.


• V, T Automatic switching from one mode to another at a preset time or a preset voltage, whichever is reached first.


6. Display


• DAY, HOUR, MINUTE All in LED digital display


• DISCHARGE, DISCHARGE RESET, CHARGE, CHARGE RESET LED lamps


• STAND-BY, OPERATION LED lamps


• C/D CYCLE COUNTER A 4-digit electromagnetic counter. It starts counting at the first discharge.


7. Outputs (To a recorder)


• Current 10V output for every range full scale ; +: Discharge, -: Charge


• Voltage I/O conversion ratio is switched with a toggle switch
Ratio: 2 : 1 (e.g.., 20V is converted to 10V)
1 : 1 (e.g.., 10V is converted to 10V)
1 : 2 (e.g.., 5V is converted to 10V)


8. Auxiliary analog out to computer


• Current 10V output for every range full scale ; +: Discharge, -: Charge


• Voltage I/O conversion ratio is 2 : 1 (e.g.., 20V is converted to 10V)


9. Inputs


Battery connecting terminals : I+ : Battery + terminal


I- : Battery - terminal


V+ : Battery sensor + terminal


V- : Battery sensor - terminal


10. Standard accessories


To-battery-lead-wire (alligator clips, 1.2m).....1: Earth cord (3m).....1


11. Power requirements


AC 115V ±10% : 50/60 Hz : 45 VA


12. Dimensions & Weight


11.5"x7.7"x13.0" (WxHxD)
290mmx195mmx330mm (WxHxD)
18.5lb/8.4kg