At 12:08 PM 4/8/2005, David wrote:
>no you can buy it build it and hook up external to the rs50 it can be built
>into the rm50
>but I don't have the rm 50 I have the rs50 and am wondering if I should
>spend the $45 for the battery backup kit or if the mod for the rs35 on the
>repeater builder website will be acceptable since I do plan on fusing both
>positive and negative lines from the rs50 to the batteries
>and again from the batteries to the load
What does this mod do exactly?
What we've done, and I've used this at home for years, is to set the
power supply to 14.4V, and connect the backup batteries directly in parallel.
Mechanically, the power supply leads (both of them!) run direct to
the battery, and in through a 30A fuse, then back out from the
battery through another 30A, to a distribution panel with fuses sized
for each device. Everything's powerpoled of course.
I've run batteries this way for >8 years with no problems, the trick
is to adjust the float voltage for your particular battery.
SLA isn't the same as Gell, and so on. They are pretty close, and
slightly under is better than slightly over.
Reduced charge state as opposed to electrolyzing the water and loosing it.
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