John( N5TBM).
1. The first shot is of the "old" back-up battery with the "new" Killer Cell assy. (220 amphour ) beside it. The unit is weatherproff, visually appealing and easily accessible for service. The poly sheet covering the top came from inside the original cell assy.
2. The second is of the assy. with the cover removed, clearly showing the four 6-cell groups. The negative posts can be clearly seen tied together with a heavy lead, run inside to the shack's ground buss.
3. The third is of the positive post connections grouped together with each group connected to it's own automotive fuseholder. Each fused positive lead then goes into the shack seperately where they can be switched to be charged, loaded or isolated for future use.
There are two sizes of battery assys. available. We have no choice in what we get or how many. Usually there are some of each.
The electrical capacity ratings of these are 220 amphours and 330 amphours. All the units contain 24 cells (48 volts).
The 220 a/h units are 46" long by 8 1/2" wide by 25" high. The individual cells are 7 3/4" by 1 7/8" by 22 1/2" high. The cells can be removed from the metal "can" by removing the intercell connectors and lifting them out. Each cell weighs about 40 pounds. The entire assy. weighs 1065 pounds. ( I cut my "can" in half and welded the two pieces back together beside each other. )
The 330 a/h units are 48" long by 11" wide by 25" high. The individual cells are 7 3/4" by 2 1/2" by 22 1/2" high. Each cell weighs about 50 pounds. The assy. weighs 1320 pounds.
I hope this information helps you see the potential for keeping amateur radio "on the air" during power failures. If you have other questions e-mail or radio me. John L.,,,,N5TBM 73
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1 comment:
Wow ! That is a lot of batteries... Do you have an inverter to drive AC loads in the house ?
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