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QNZ70 Ni-Mh Battery
QNZ70 Ni-Mh Battery

QNZ70 Ni-Mh Battery

  • Standard voltage:

    1.2V
  • Charging current:

    0.2C5A
features
The battery leaves factory in discharged state without electrolyte. Before start using, it is needed
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  • Features
  • TECHNICAL DATA
  • SUCCESSFUL CASES

Dimensions 

                               

Specifications 

Nominal Voltage

1.2V

Capacity(5HR,20℃)

400Ah

Dimension

Length

277mm

Width

140mm

Height

410mm

Total Height

450mm

Approx. Weight

23Kg

Internal resistance

(Fully charged, 20℃)

1.0*10-3 Ω

Capacity affected by temperature (5HR)

20℃

≥100%

-18℃

≥60%

Self-discharge

(20℃)

3 month

<50%

Nominal operating temperature

20℃±5℃

Operating temperature range

–20℃~45℃

Float charging voltage(20℃)

1.48 ~1.50V

Maximum charging current

80A

Terminal material

Nickel- Clad  Steel

Maximum discharge current

80A

 

◆According to IEC cycle time is more than 500,

float charging life is more than 15 years.

◆PP container.

 

Discharging Characteristics

 

Constant Current Discharge Characteristics (A, 20℃)

F.V/TIME

1min

5min

10min

15min

20min

30min

1h

2h

3h

5h

8h

1.0V

492

443

402

364

342

322

262

169

125

80

52

1.1V

354

325

286

262

243

219

185

142

109

77

50.4

1.14V

343

264

242

223

204

181

153

113

101

73

48

 

Feature:

1.High resistance to mechanical and electrical abuse.
2.Low maintaincost and replacement cost


Application:

Drilling Plant form

QNZ70 Ni-Mh Battery

Starting use of the battery:

1 Preparation before start using

The battery leaves factory in discharged state without electrolyte. Before start using, it is needed to do following preparation:

1.1 Measure the cell’s open circuit voltage one by one. If the value is lower than 0.5V, a small amount of electrolyte can be filled in, and then measure it again. If the voltage goes up to 0.5V,it will be regarded as the qualified.

1.2Check the nut one by one whether are tightened enough.

1.3 Filling with the electrolyte 

Unscrew the vent plug, fill the electrolyte into the battery in time(electrolyte standard and preparation method is shown in Appendix 1.) Adjust electrolyte level between two limit lines. Screw the vent plug again, move the sealer on the hole of the vent plug and clean the battery. The battery must be soaked for 4 hours after filling with electrolyte then adjust electrolyte level again

1.4 Place the battery in its location and connect the battery in series with connector. In the end, connect the last positive terminal with the positive lead of charger, and the negative terminal is connected with the charger’s negative lead. Mistake connection is forbidden.

 

FAQ:

  1. packaging: Export dedicated plywood wooden cases
  2. delivery time: 30days received 30% advance payment
  3. accepted payment: T/T, LC.
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