Random battery drain

[B_RAD_BALLA]

So I have a random battery drain every week or two that will kill the battery overnight. 61x chaging system. It will be fine for days on end and then overnight, dead. Ive had 4 different batteries in the ski 3 new. This issue is not a battery. Bilge disconnected. My parasitic draw with engine off is .018 amps dc consistently when I'm watching at least. I know .018 Will eventually kill the battery but I think it would take a while and be more consistent when it dies. What is normal parasitic draw? I'm thinking maybe the stator lighting coil has a weird draw. I also opened the ebox and everything was peachy. It is not a charging problem since the ski will be charged, sit and die with no run time.

Thoughts?

 

[Tyler Zane]

I had a regulator rectifier that was killing my battery. You could open up the ebox and disconnect each component one at a time and see if it changes your draw.

I dont know how much is too much but i got curious and found a battery life calculator. If you had a deka etx-12 (10 amp hour), a .018 amp draw would kill a battery in 16 days. It probably would only take a 1/3 of that time to be low enough to not start your ski.

 

[B_RAD_BALLA]

good point! thanks man