This just reminded me... The South Pickering Amateur Radio club has a large number of deep cycle batteries for sale very cheap. They are 50 amp-hour 12v gel-cell batteries. These batteries are slightly used (4-5 years old) and come from Toronto Police radio towers where they served as backup in case of a power failure. This means that they are practically new condition and in many cases may not have ever even been discharged at all. They're asking for $10, or an appropriate club donation per battery... These things cost over $200 new and one of them would probably operate a scope for weeks on end. I don't have the exact dimensions, but I understand they are very small for their power, but also very heavy.Funny timing. My car "booster" battery is old, appears to be on its last legs. I was starting to shop around, research "the next battery." And in doing so, seriously consider building my own. Actually, more than one. So I could keep the dew heating separate from motor drive. Separate from the computer and whatever other doodads I have...
Maybe I'll get a couple of these.
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