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OK, I've got a battery idea for the duck boat. Trying to keep it as light as possible and still work what I need electronics-wise.
The battery is an 18 amp-hour battery.
I want to run a pair of 100w halogen lights as well as a bow and stern nav light. I need them to run for about an hour max.
If I do the math on the lights ( Divide the total number of watts by the system's volts. For example, a 100-watt bulb in a 12-volt system will draw 8.3 amps.
(100w / 12v = 8.3a) ) I'm thinking this would (barely) make it at 16.6 amp/hours.
And that would really leave me no capacity for the running/nav lights which I doubt draw much but they draw something...
Am I doing my math right??
-T
The battery is an 18 amp-hour battery.
I want to run a pair of 100w halogen lights as well as a bow and stern nav light. I need them to run for about an hour max.
If I do the math on the lights ( Divide the total number of watts by the system's volts. For example, a 100-watt bulb in a 12-volt system will draw 8.3 amps.
(100w / 12v = 8.3a) ) I'm thinking this would (barely) make it at 16.6 amp/hours.
And that would really leave me no capacity for the running/nav lights which I doubt draw much but they draw something...
Am I doing my math right??
-T