First time here, because I'm a little confused and need some help or advice on what happened.
I pulled my boat out of winter storage yesterday, I have a dual battery system (Add-a-battery by Blue Sea). Anyway, I go to turn on the boat, nothing. Completely dead. Tried changing the switch from On to Both, stlil nothing. Both batteries 100% dead. Now I've read that the ACR system for the Dual Battery system pulls a small charge even when the boat is turned off and after a few months could completely drain the battery...
Anyway, I got a jump start and the boat started up fine and everything was good. Drove for 40 minutes around 40 mph thinking that was enough to juice up the battery, I stopped the boat, tried to restart it, and it was completely dead. How? The boat is not that old, and I just got the 100 hour maintenance package at the marina, it should be tip top shape. Is 40 minutes really not enough to charge the boat battery?
I took both boat batteries off the boat and brought them home and charged them with a 6amp charger. They both charged in about 45 minutes and now are reading 12.86 and 12.50 on the multi meter. That means they are pretty charged up, close to 100%.
That seems way too quick, I've read online it should take 7 hours to charge up the battery from 0% using 6amp, not 45 minutes... I'm skeptical.
Does anyone have any thoughts before I haul these batteries back to the boat and see if the boat starts up?
I pulled my boat out of winter storage yesterday, I have a dual battery system (Add-a-battery by Blue Sea). Anyway, I go to turn on the boat, nothing. Completely dead. Tried changing the switch from On to Both, stlil nothing. Both batteries 100% dead. Now I've read that the ACR system for the Dual Battery system pulls a small charge even when the boat is turned off and after a few months could completely drain the battery...
Anyway, I got a jump start and the boat started up fine and everything was good. Drove for 40 minutes around 40 mph thinking that was enough to juice up the battery, I stopped the boat, tried to restart it, and it was completely dead. How? The boat is not that old, and I just got the 100 hour maintenance package at the marina, it should be tip top shape. Is 40 minutes really not enough to charge the boat battery?
I took both boat batteries off the boat and brought them home and charged them with a 6amp charger. They both charged in about 45 minutes and now are reading 12.86 and 12.50 on the multi meter. That means they are pretty charged up, close to 100%.
That seems way too quick, I've read online it should take 7 hours to charge up the battery from 0% using 6amp, not 45 minutes... I'm skeptical.
Does anyone have any thoughts before I haul these batteries back to the boat and see if the boat starts up?