ShenZhen ManLi Technology Co., LTD.
                                                                                                           
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130g Emergency Lighting Battery Ni Mh D4000mAh 3.6V for Security Systems

Price Negotiable
Price: Negotiable
MOQ: 1000PCS
Delivery Time: 35 working days
Product Description

Emergency Lighting Battery Nimh D4000mAh 3.6V

Features

  1. Environmentally Friendly: Cadmium-free chemistry, RoHS compliant.
  2. High Capacity: 4000mAh provides extended runtime for emergency systems.

  3. Low Memory Effect: Minimal capacity loss from partial cycling.

  4. Wide Temperature Range: Reliable performance in various environments.

  5. Float Charge Optimized: Designed for continuous standby operation.

  6. Maintenance-Free: Sealed construction, no watering required.

  7. Safety Enhanced: Lower risk of thermal runaway compared to Li-ion.

  8. Good Cycle Life: 500+ cycles with proper maintenance.

 

Specifications

 

Model

D-D4000mAh 3.6V

Dimension

33.0*61.8mm   (Diameter*Height)

Voltage

 3.6V

Capacity

4000mAh

Iedance

<15 mΩ

Discharge cut-off voltage

 3.0V (1.0V per cell)

Maximum Charge voltage

 1.4V

Standard charge current

0.1C (400mA) for 14-16 hours

Weight

 130g

Working teerature

Charge:0-40 degree

Discharge:-10-50 degree

Storage teerature

minus 20 - 30 degree

Self-Discharge Rate

25-35% per month (at 20°C)

Cycle life

500-1000cycles 

Application

  • Emergency Lighting Systems: Exit signs, emergency luminaires
  • LED Emergency Lights: High-capacity backup for LED fixtures

  • Security Systems: Alarm panels, access control backup

  • Emergency Exit Signs: Self-contained emergency signage

  • Backup Power: UPS systems, medical equipment backup

  • Portable Emergency Devices: Emergency lanterns, flashlights

Warnings & Precautions

Charging 

  • USE NiMH-SPECIFIC CHARGERS ONLY. Do not use NiCd or Li-ion chargers.
  • Float Charge Voltage: Maintain 4.3V-4.5V for emergency lighting applications

  • Temperature Monitoring: Charge between 0°C and 40°C only

  • Avoid Overcharging: Use chargers with proper termination features

  • Never charge at currents exceeding manufacturer's specifications

 

Operation & Maintenance

  • Regular Testing: Perform monthly functional tests and annual duration tests
  • Capacity Monitoring: Replace if runtime falls below required minimum

  • Terminal Maintenance: Keep terminals clean and free from corrosion

  • Ventilation: Ensure adequate ventilation around battery compartment

 

Storage & Handling

  • Storage Conditions: Cool, dry environment (15°C-25°C ideal)
  • Charge State: 40-50% capacity for long-term storage
  • Recharge Frequency: Every 3-4 months during storage
  • Handling: Avoid dropping or mechanical shock

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company ShenZhen ManLi Technology Co., LTD.
Location No. 202, Building H, 30 Qi Xin Road, Wuliang Community, Longgang Street, Longgang District, Shenzhen City, Guangdong Province, China
Contact Person Sherry Zhang

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