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12v20ah vrla lead-acid battery/maintenance free/rechargeable description:
Model: 12V 20AH (NT12-20Y)
Dimension: 181(L)*77(W)*167(H)*167(TH)mm
Weight: 5.35kg
Norminal Voltage: 12V
Rated Capacity: 20AH
Terminal Type: Bolt
Package: 4 pcs/box
Applications
Remote Switching
Control equipments
Communication systems
Portable Lights
Alarm systems Power tools
Medical equipments
Electric toys
Fire and lighting for Emergency systems
Uninterruptible power supplies (UPS)and stand-by power for computers
Characteristics
Nominal Voltage | 12V | ||
Nominal Capacity (20 hour rate) | 20Ah | ||
Capacity 25°C(77°F) | 20 hour rate (1A) | 20Ah | |
10 hour rate (1.9A) | 19.0Ah | ||
5 hour rate (3.2A) | 16.0Ah | ||
1 hour rate (13A) | 13.0Ah | ||
Internal Resistance | Full Charged Battery 25°C(77°F) | ≤20mΩ | |
Cyclic Life | 50%(C20) Depth of discharge | 600Times | |
Float Life | 25°C(77°F) Float charge at 13.8V | About 3 Years | |
Capacity affected by Temperature (20 hour ) | 40°C (104°F) | 102% | |
25°C (77°F) | 100% | ||
0°C (32°F) | 85% | ||
-15°C (5°F) | 65% | ||
Self-Discharge 25°C(77°F) | Capacity after 3 month storage | 90% | |
Capacity after 6 month storage | 80% | ||
Capacity after 12 month storage | 62% | ||
Charge (Constant Voltage) 25°C(77°F) | Cycle | Initial Charging Current Less than 6.0A Voltage 14.6-15.0V | |
Float | Voltage 13.5-13.8V | ||
Battery Construction
Component | Positive plate | Negative plate | Container | Safety valve | Terminal | Separator | Electrolyte |
Raw Material | Lead dioxide | Lead | ABS | Rubber | Copper | Fiberglass | Sulfuric acid |
