Technology

up to 15 hours battery life in flashing mode, depending on which mode
Up to 10 hours for always lit mode
Voltage: 12V
Capacity: 2,800mAh
Size: 3.5" x 2" x 0.8"
Charging time: 8hrs

 

Some models of flashing LED board at flashingledboard.com have the option of using battery power. The battery can be re-charged easily by using this charger.