Friday, June 12, 2015
coach battery system - isolde, part 2
First thing first. With the void left from the removal of the rear passenger heater I have to first patch up the floor so the deep cycle batteries can sit on a flat surface. I cut a piece of 3/4" plywood scrap that I have.
the diameter of the Teflon tape holder is just perfect to draw the rounded corners
my solution to the electrical cable - so not to crush them with the heavy batteries
not good enough, the 3/4" plywood is about 1/8" shy to be even with the factory plywood buildup
the pen mark on the duct tape marks the boundary of the two batteries
i scrounge around my house to find something that can be used to raise the plywood another 1/8" - and this clip board is perfect in thickness and density
a table saw and a band saw make this step effortless, almost
the next challenge is to find the existing hole position so ii don't need to drill new holes
a bit more work but it is worth it
making more basil pork
once the battery sits on level platform I made the final check; actually in final installation, the speaker is raised slightly by the trim ring so there is a few mm more clearance
i played with flipping the battery 180-degree around to see which is the better arrangement; this one is definitely not
i also check to see if one battery can be arranged this way (with the two from an L) - no go for two
battery endurance test begins - one meter for amperage and one for voltage
ambient temperature and two thermocouple probes for the freezer box and the refrigerator
I must be decisive with the decision to go with one or two batteries with the result of the test. Should 2 batteries is preferred, I want them to start being use at the same time to minimize current hogging. If I feel comfortable that likely one is viable, I can try use one but plan to upgrade a few years down the road if it is marginal.
The other consideration is installation of a modest solar panel would affect this decision. A solar panel that I can live with is one that fit onto the luggage rack.
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