12v 4ah lead acid battery description:
Model : 12v 4ah
Demension: 90(L)*70(W)*101(H)*106(TH)mm
Weight :1.36kg,
Normal voltage :12v
Rated Capacity : 4ah
Package : 10pcs/box
Applications:
Electric Toys
Powe tools
Control equipments,
Medical equipments
Communication systems
Alarm and security devices
Uninterruptible power supply (UPS)
Garden and emergency lights
Solar and wind powered system
And so on
Characteristics Nominal Voltage | 12V | Nominal Capacity (20 hour rate) | 4.0Ah | Capacity 25degrees(77°F) | 20 hour rate (0.20A) | 4.0Ah | 10 hour rate (0.38A) | 3.8Ah | 5 hour rate (0.64A) | 3.2Ah | 1 hour rate (2.6A) | 2.6Ah | Internal Resistance | Full Charged Battery 25degrees(77°F) | ≤55mΩ | Cyclic Life | 50%(C20) Depth of discharge | 600Times | Float Life | 25degrees(77°F) Float charge at 13.8V | About 3 Years | Capacity affected by Temperature (20 hour ) | 40degrees (104°F) | 102% | 25degrees (77°F) | 100% | 0degrees (32°F) | 85% | -15degrees (5°F) | 65% | Self-Discharge 25degrees(77°F) | Capacity after 3 month storage | 90% | Capacity after 6 month storage | 80% | Capacity after 12 month storage | 62% | Charge (Constant Voltage) 25degrees(77°F) | Cycle | Initial Charging Current Less than 1.2A Voltage 14.6-15.0V | Float | Voltage 13.5-13.8V |
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Battery Construction
Component | Positive plate | Negative plate | Container | Safety valve | Terminal | Separator | Electrolyte |
Raw Material | Lead dioxide | Lead | ABS | Rubber | Copper | Fiberglass | Sulfuric acid |
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