NS70 Battery Deep Cycle Standard Terminals + -

Hi-Tec calcium maintenance free design
Popular applications: Small engines + electrics including standard lights, bilge pump, radio, control instruments, fish finder.
How do I know if I have enough Amp hours for my application? Example : 5.0 (amps) x 12 equal to 60 watts.
Voltage: 12VOLT
CCA: 82AH / 600CCA
Dimensions (LxWxH): 258 x 172 x 221
Terminal Layout: Dual Terminal