Old Solar System VS. New Solar System
　

Old Solar Power System Calculation :

Device Power Consume : 5W/H
For 6 days = 6 * 24 = 144hrs
Total Consume = 5 * 144 = 720W

Need Battery Capacity (+20% Range) = 720W * 120% / 12V = 72Ah
Solar Panel 4 Hours to Charging Battery Need 180W~230W
(Lead-Acid Battery Indoor 300 Times Cycle Life, Battery Capacity Down to 50%~60%)
(Lead-Acid Battery Outdoor 150 Times Cycle Life, Battery Capacity Down to 50%~60%)

VS. 

New Solar Power System Calculation :

Device Power Consume : 5W/H
For 6 days = 6 * 16 = 96hrs
(New Solar System Winter AM 10:00 ~ PM 4:00 can provide power for device)
Total Consume = 5 * 96 = 480W

Need Battery Capacity (+10% Range) = 480W * 110% / 12.8V = 41.3Ah
Solar Panel 4 Hours to Charging Battery Need 120W~140W
(C-LiFePO4 Lithium Batteries 1100 Times (3 Years) Battery Capacity Down to 90%~95%)
(C-LiFePO4 Lithium Batteries Voltage is 12.8V)

New Solar System can save (72 - 41.3Ah) / 72Ah =42% Battery Capacity

New Solar System can save (1100 - 150Times) / 150Times = 630% Battery Cycle Life