[C320-list] interstate SRM-4D Batteries

[Dick Walker]

I prefer AGM BATTERIES. No issues with the water. I also only turn on the refer when I am sure to be using it





Cheers



Dick Walker
740 Olive Ave.
Coronado ,CA 92118
619.435.8986



> On Sep 8, 2015, at 18:30, danny jensen <danny at jensenshouse.com> wrote:
> 
> Dear Group,
> I just killed off a set of interstate SRM-4D Batteries after about 4 years.
> It is very likely I caused these to die after a ran them down to 0 when I
> lost shore power and had my refrigerator on. Also I believe one battery had
> low water and it looked like the battery was deformed during charging.
> 
> I have been running a balmar 100A alternator / MC-614 regulator an pulling
> about 75A at anchor. Normal running it is configured in small engine mode
> pulling max 35A. My balmar MC-614 has temp sensors on one of the batteries
> the 2 SRM-4D are wired in parallel making one 268AH (234 x 2 per Warren's
> Calc's). I have a xantrex link lite battery monitor and never take the
> batteries down more than 80 percent ( one should use Warrens calculation
> -5% first year and -3% thereafter). I shore charge with a xantrex 40A
> charger. I spend 5 night offshore 10 times a year.
> 
> The batteries started their life as 2 separate banks of 268 batteries then
> I joined them in parallel 2 years ago on my boat rewire project per Jeff's
> notes. My guess is that one battery failed and killed the other battery in
> parallel. Maybe I abused on battery before I paralleled them?
> 
> I was able to install these myself. But I was at my limit.
> 
> Question:
> 1. Is 4 years reasonable for flooded batteries
> 2. Is there some sort of smart breaker I can apply to my Adler-Barbour
> refrigerator
> to idot proof not running my refrigerator when my batteries are say less
> than 12.2vdc.
> 3. I'm running Bulk charging for at 14.4 volts for at least 1 hours under
> from by balmar. Much has been written about this topic so I just like to
> get your take on this Warren, Jeff... others
> 
> Battery Supplier for Interstate SRM-4D:
> General Truck Supplies
> Cost : $445 each
> Next day delivery to store
> 1515 Anaheim Street
> Wilmington, CA 90744
> 310 952-1040
> 
> Danny
> #972