KnoxWill
Member
- Aug 28, 2020
- 55
- Boat Info
- 2013 220 Sundeck
1979 SRV 200
- Engines
- 350 MAG Mercruiser w/Alpha Drive
I
I put a charger on it last week. Checked it yesterday. It is at 13.6v with charger on. I agree the battery is almost gone. The second battery is not able to be charged and sitting at home. When I bought the boat in August, the previous owner said they were original batteries, 2014 era. I see two new batteries coming in the spring. Any recommendations for dual purpose batteries? The current batteries are Interstates.
If it's dropping down to 12.4V in a relatively short time with little use, the battery is just about gone. Or, the charger isn't really doing it's job. It should be charging at a higher rate than 12.8 - that's what a new battery's resting V will be.
If it's a good/smart charger, it's fine to leave it on. But if it's not rated for use in the bilge (ignition protected), just the wires in and leave it in the cockpit. BUT... I wouldn't use alligator clips - it's safer to make a permanent connection.
I put a charger on it last week. Checked it yesterday. It is at 13.6v with charger on. I agree the battery is almost gone. The second battery is not able to be charged and sitting at home. When I bought the boat in August, the previous owner said they were original batteries, 2014 era. I see two new batteries coming in the spring. Any recommendations for dual purpose batteries? The current batteries are Interstates.