bruceb58
Supreme Mariner
- Joined
- Mar 5, 2006
- Messages
- 30,772
Re: PDM60 - Cool Power Hub for Electrical/Electronics
Most people that own boats on here do not have 100AH batteries and most don't leave both batteries on at at the same time. Average 24 series battery that most people have on their boats is a group 24 which is a 60AH battery. Since you don't want to discharge any battery less than 50%, you whould not want to have more than a 30A draw down of the battery. At 1.2Ah per day that would happen in 25 days.
Hi Bruce,
The 50mA current draw you reference is correct, if you have any or all circuits programmed to be "always live". If none are programmed to be "always live", there is virtually no draw at rest. It really depends on how a boat is used/stored, what battery capacity is, etc. For instance, I have two 100Ah batteries on my boat. So, I could leave the PDM60 on with 'always live" circuits for about 166 days (over 5 months) before my batteries would drop below 10.5 volts, and be compromised. It would be about 80 days (2.5+ months) if I had just one battery. If I'm not running the motor for 80 or 160 days to recharge the batteries, that means it's in storage. I run mine on a tender when it's in storage. Once again, different strokes for different folks, but the 50mA is by no means a wreckless amount of draw to manage.
Most people that own boats on here do not have 100AH batteries and most don't leave both batteries on at at the same time. Average 24 series battery that most people have on their boats is a group 24 which is a 60AH battery. Since you don't want to discharge any battery less than 50%, you whould not want to have more than a 30A draw down of the battery. At 1.2Ah per day that would happen in 25 days.
