Product Description
The Cylindrical Ni-Cd Rechargeable Battery is a durable and stable power source using nickel oxide and cadmium as active materials. It features high discharge rate capability, low internal resistance, excellent performance under high and low temperatures, and long cycle life, ensuring consistent operation under demanding conditions.
Ni-Cd batteries are known for their outstanding overcharge and over-discharge tolerance, long storage life, and reliable rechargeability, making them ideal for industrial and backup power applications.
Available in standard cylindrical sizes such as AA, C, and D, these cells can be easily configured into custom battery packs.
| Cell Type | Ni-Cd D |
| Nominal Capacity | 4000 mAh |
| Nominal Voltage | 3.6 V |
| Internal Resistance | ≤ 60 mΩ |
| Discharge Cut-off Voltage | 3.0 V |
| Standard Charge Current | 0.1 C (400 mA) |
| Maximum Charge Current | 0.5 C (2000 mA) |
| Standard Discharge Current | 0.2 C (800 mA) |
| Max. Continuous Discharge Current | 1 C (4000 mA) |
| Charging Temperature | 0 °C – +55 °C |
| Discharging Temperature | –20 °C – +70 °C |
| Cycle Life | ≥ 500 cycles (60 % capacity retention) |
| Weight | ≈ 305 g |
| Dimensions | Φ 32.6 ± 0.2 mm × 178.5 ± 0.5 mm |
| Note | Customization available |
Ni-Cd batteries provide stable electrochemical performance and long cycle life, delivering reliable backup power to ensure uninterrupted lighting during emergencies.
Operates efficiently from -20°C to +70°C, maintaining stable output even in high-temperature, humid, or enclosed environments — ideal for emergency lighting fixtures.
With superior tolerance to overcharge and over-discharge, Ni-Cd batteries can remain in float charge for extended periods without degradation, perfectly matching the standby requirements of emergency lighting systems.
Featuring low internal resistance and high discharge capability, Ni-Cd batteries deliver strong starting current for immediate light activation and steady brightness.
Durable and stable performance allows 500–1000+ charge/discharge cycles, reducing maintenance frequency and overall system costs.
Cylindrical Ni-Cd batteries are widely used in emergency lighting systems due to their stable voltage output, excellent high-temperature tolerance, and long cycle life.
In such systems, Ni-Cd batteries act as a backup power source. Under normal conditions, they remain in a float-charging state while the main power supply is active.
When a power outage occurs, the batteries automatically switch to discharge mode, providing a reliable DC power supply to keep the emergency lights on instantly — ensuring safety and visibility during emergencies.
Thanks to their high-temperature resistance and strong overcharge tolerance, Ni-Cd batteries perform reliably under long-term float charging or frequent charge/discharge cycles, making them ideal for emergency lighting applications.
Their low internal resistance and high discharge rate also ensure that the lamps receive sufficient starting current, maintaining bright and stable illumination.
