Battery Chargers for Ni-Cd and Ni-MH batteries (3-12 series connected cells) 6W (WHR models)

Main Features:

1. Power consumption at no load < 0.4W.
2. Microprocessor control to detect the end of charge.
3. Charge Ni-Cd and Ni-MH batteries with –ΔV detection.
4. Built-in protection against short circuit, overcharge, over voltage.
5. Charge with pulse current.
6. Dripping recharge after the main charge (25-50 mA).
7. 1- year guarantee.
8. Charging time approx. 6 - 7 hours.

 ParametersWHR0503WHR0504WHR0505WHR0506WHR0507WHR0507
OutputVoltage, V4.25.09.012.015.024.0
Charge current, mA10001000660500400250
Voltage range, V3-4,24,2-55-99-1212-1515-24
Power consumption, W4.256666
Amount of Consecutive cells34-56-78-910-1111-12
Voltage accuracy, %± 5,0± 5,0± 5,0± 5,0± 5,0± 5,0
Loading accuracy, %± 5,0± 5,0± 5,0± 5,0± 5,0± 5,0
LED indication Green - no load. Red - charging. Green – charging is complete. Fleshing Red - error.
InputEfficiency, %656572747677
Voltage, V90 — 264VAC; 135 — 370VDC
Frequency, Hz47 — 63
Current0,3А/ 100VAC
Peak current50A/ 230VAC
Leakage current0,25мА/ 240VAC
Requirements for the environmentOperating temperature, °C0 … +40
Humidity, %20…90
Storage temperature, °C-25 - +85 at relative humidity of 10 - 95%
Temperature coefficient, %0,03 (0 - +50°С)
Vibration10 — 500 Hz, 2G 10 min/ 1 circle, interval 60 min, in three axes
SafetyMeets standardUL60950-1; CSA22.2; EN60950-1; GOST R
Insulation resistance100MOm/ 500VDS/ 25°C/ 70% RH
Size, mm74 х 29 х 42
Weight, g82
Connector1,1х3,5х10,5 standard, plus inside, another connector upon request


There are models designed for a power of 30W, 60W, 90W. Desktop type chargers are also available.

If you can’t find what you need on our website, please email us at info@nt-stels.com

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