How much draw does bow and stern lights use? I fish a few overnight TX's. Since the lights are connected to the cranking battery I am a little concern in the amount of draw.
How much draw does bow and stern lights use? I fish a few overnight TX's. Since the lights are connected to the cranking battery I am a little concern in the amount of draw.
switch to leds little draw at all--old stlye bow lights do draw a lot
2022 z519 cup 225 merc 4s ser # 3B210484. 2--hds12 live units. 2 poles, atlas plate, ghost, hamby's, active target, merc digital gauges
2002 basscat pantera 3 (dad bought new) sold 8-2-22
2000 stratos 20 ss (bought new) 200 hp Rude ficht great boat/motor sold 11-21
pulled by a 2500HD Denali
proud dad of an ARMY Captain
MAGA
ASE/GM Master tech before tools
I would think you could use a simple formula to determine about how long you have in battery life. Divide watts by power (12 volt), this will tell you how many amps it takes that "thing" to run. Do this for the front and rear lights. Then see how many cca (cold cranking amps) your battery has. Check your motor specs to determine how many you need, subtract that + 25% (sounds like a good safety margin to me) and you would have an approximate amount of time you can run the lights on the single battery and still be able to crank the motor.
Most are about 1 amp. Use a 11 watt 906 bulb. LEDs will drop that to 0.1 amp at the worst. But 1 amp x 2 bulbs is not going to flatten a battery overnight. Typical cranking battery has at least a 100 ah capacity. Meaning 1 amp for 100 hours. 2 amps for 50 hours. Etc.
2008 Bass Cat Pantera Classic
2014 Mercury Pro XS 200
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