18650-1600mAh-3.2V Lithium Power Battery LiFePO4 Changeable for Emergency Light Battery and Emergency Call

• Material: PVC
• Bulb Type: Emergency Light
• Usage: Emergency
• Battery Type: LiFePO4
• Certification: CE, RoHS
• Nominal Capacity: 1600mAh
• Model NO.: 18650/26650-1600mAh-3.2V/3.6V
• Nominal Voltage: 3.2V
• Max.Charging Current: 1.6A
• Fast Discharge Current: 1.6A
• Max.Continuous Discharge Current: 4.8A
• Transport Package: Cartons
• Specification: customizable
• Trademark: Goldencell
• Origin: China

Product Description

 

Nominal Capacity	1600mah
Nominal Voltage	3.2V
MAX.Charging Current	1.6A
Fast Discharge Current	1.6A
Max.Continuous Discharge Current	4.8A
Pulse Discharge Current	10A,5S
Cycle Characteristic(25ºC)	7000times(50%DOD)
	4000times(80%DOD)
	3500times(100%DOD)
	2000times (100%DOD)
Charge Working Temperature(Including temperature)	0ºC~75ºC
Discharge Working Temperature(Including temperature):	-30ºC~75ºC
Cell Weight	Approx 39.5g

Design Considerations:

1. Battery Parameters Suitable for Emergency Lights:

   • Capacity and Voltage: The 1600mAh capacity and 3.2V voltage are suitable for prolonged illumination needs.
   • Charge and Discharge Temperature Range: Supports charging from 0°C to 75°C and discharging from -30°C to 75°C, ensuring reliability and stability in different environmental conditions.

2. Charge and Discharge Characteristics:

   • Maximum Charging Current: 1.6A, manageable through appropriate charging circuitry to ensure safety and battery longevity.
   • Continuous Discharge Current: Up to 4.8A, supporting high-power lighting requirements for consistent brightness.
   • Pulse Discharge Current: 10A for 5 seconds, suitable for short bursts of high power required in emergency lighting modes or during startup.

3. Cycle Life:

   • According to cycle characteristics, can withstand up to 7000 cycles at 25°C (50% Depth of Discharge), ideal for frequent use in emergency lighting applications.
   • Cycle life decreases with deeper discharge cycles (e.g., 100% Depth of Discharge), requiring a balance between lifespan and cost in design considerations.

4. Weight and Size:

   • Each cell weighs approximately 39.5g, suitable for lightweight design considerations in emergency lighting applications.

Application Recommendations:

1. Circuit Design:

   • Select appropriate charging management circuitry to safely charge within specified temperature ranges and prevent overcharging or over-discharging.
   • Equip with suitable discharge protection circuits to ensure stable operation under high-power demands.

2. Luminaire Design:

   • Opt for efficient LED luminaires to maximize battery energy utilization and minimize energy losses.
   • Design multiple lighting modes (e.g., constant, energy-saving, flashing) to meet various emergency lighting requirements.

3. Temperature Management:

   • Consider incorporating adequate heat dissipation designs in luminaires to maintain battery operating temperatures within safe limits.
   • Ensure normal battery and luminaire operation under extreme temperature conditions, such as through insulation and heating measures.

4. Safety of Use:

   • Provide user manuals detailing conditions and limitations for charging and discharging operations to ensure proper battery and luminaire use.