Specifications: 
Nominal voltage: 6V
Nominal capacity (20HR): 4Ah
Maintenance: Free
Dimension(LxWxHxTH): 70x48x100x106mm
Weight/unit: 0.68kg

 Advantages:                                                                                                                  * Full range of lead acid battery, with capacity 0.8Ah to 3000Ah
* Maintenance-Free
* Completely safe and sealed design
* Gas recombination
* Maintenance free
* High discharge ability
* Low self-discharge rate
* Wide temperature range
* Powerful recover ability
* Long life cycle

Applications: 
Marine systems, security systems, radio transceivers, medical equipment, electric power systems, all kinds of test machines, computer backup power supplies, emergency lighting/small lamp fitting, railway engines/railway communications, uninterruptible power supply for banks, fire protections and security,telecome system