as part of my boat project i want to have a battery monitor, but i have a few questions regarding the battery.
we have a 12v leisure deep cycle battery that powers the boat electrics and provides power to start the boat, what we dont have at the moment is anyway of knowing when the battery is getting too low to restart the boat, this normally happens if we are night fishing and anchored up with the engine off and all electrics on for long periods. so anyway i was thinking of a simple row of leds with say 5 green and 3 red that show how much juice is left in the battery (number of leds is just a random number i picked), so what is the best way of doing this? can it be done by simply measuring how much voltage is in the battery? and when it drops to a certain level flash a warning? if so what kind of voltage says the battery is getting low? i dont need any help with the code for now but i am not sure how to actualy tell if the battery is getting low
LG
we have a 12v leisure deep cycle battery that powers the boat electrics and provides power to start the boat, what we dont have at the moment is anyway of knowing when the battery is getting too low to restart the boat, this normally happens if we are night fishing and anchored up with the engine off and all electrics on for long periods. so anyway i was thinking of a simple row of leds with say 5 green and 3 red that show how much juice is left in the battery (number of leds is just a random number i picked), so what is the best way of doing this? can it be done by simply measuring how much voltage is in the battery? and when it drops to a certain level flash a warning? if so what kind of voltage says the battery is getting low? i dont need any help with the code for now but i am not sure how to actualy tell if the battery is getting low
LG