Hey, I have I think 12 of these yuasa npw45-12 12v, 45w/cell,10min batteries. I want to know if using them in a battery bank would be a useful power supply for more lighting in my shed. How quickly would they drain if I were to use maybe two 10 watt light bulbs for 12 hours a day? I would power them with an extra 100 watt solar panel I have. What does the 10 mins mean? Would this even work? Thanks