Blowncar
Active member
- Joined
- Jan 20, 2018
- Messages
- 152
- Status
- OWNER - I own a Hatteras Yacht
- Hatteras Model
- 52' CONVERTIBLE (1983 - 1990)
My 52C has what i believe to be its original 32v charger "Lewco silicon diode". The prior owner switched to 8 volt trojan t-875 golf cart style batteries and had the two banks relocated to the boats center line/walkway between engines for ease of service. Original location would be very difficult for me to get too.
Recently ,I had a low battery alarm when turning the key on to fire the engine, it started fine though. Apparently the charger breaker was in the off position, not sure why but it is next to ac breaker and ac guy had just did work on the system and may have tripped it on accident. I didn't have a working gauge inside the cabin so we installed them. I was only at 32.6 and 32.4 with the charger off. I recharged at the number 2 setting for 24 hours. Charge was showing 34.4 and 34.2, I turned the charger off and let the batteries set for an hour. They started dropping immediately with no known load on them. After 1/2 day I was almost back to where I started.
I went down and checked each battery; bank 1 was 8.4 8.4 7.9 7.8 =32.5 bank 2 was 8.4 8.4 7.95 7.9 = 32.65. Seems weird to me that batteries 3&4 in both banks aren't charging up. Batteries are almost 4 years old and full of water. I only use one bank for starting and house bank only powers a few lights inside the boat (very little use) and i do not have an inverter.
I cleaned the cables and upped the charge to position 3 and charge went up to 35.5 in both banks but again fell all the way back down after the charger was switched off. Before I start replacing 8 batteries and probably the charger ($2500) what else should i check for? I will post pics a little later, thanks.
Recently ,I had a low battery alarm when turning the key on to fire the engine, it started fine though. Apparently the charger breaker was in the off position, not sure why but it is next to ac breaker and ac guy had just did work on the system and may have tripped it on accident. I didn't have a working gauge inside the cabin so we installed them. I was only at 32.6 and 32.4 with the charger off. I recharged at the number 2 setting for 24 hours. Charge was showing 34.4 and 34.2, I turned the charger off and let the batteries set for an hour. They started dropping immediately with no known load on them. After 1/2 day I was almost back to where I started.
I went down and checked each battery; bank 1 was 8.4 8.4 7.9 7.8 =32.5 bank 2 was 8.4 8.4 7.95 7.9 = 32.65. Seems weird to me that batteries 3&4 in both banks aren't charging up. Batteries are almost 4 years old and full of water. I only use one bank for starting and house bank only powers a few lights inside the boat (very little use) and i do not have an inverter.
I cleaned the cables and upped the charge to position 3 and charge went up to 35.5 in both banks but again fell all the way back down after the charger was switched off. Before I start replacing 8 batteries and probably the charger ($2500) what else should i check for? I will post pics a little later, thanks.
