Fun with Batteries

First, the debacle. “So what” I said, “if the tag says ‘no user serviceable parts.’ I can replace batteries, can’t I?” These statements came as I looked at my now defunct Belkin 900maH UPSs. So I ordered batteries, and proceeded to install them. On reassembly, a few contacts touched, we had a few sparks, no big deal. Discretion being the better part of valor, however, led me to moving the UPS to the garage before I plugged it into the AC power. That was a good thing.

Smoke. Sparks. Quickly, I pulled the plug. So they weren’t kidding about the problems with user servicing. Perhaps the need to bend the case to replace the batteries should have tipped me off.

So here I am with two new 7aH sealed lead-acid batteries. I then I check the old ones with my multi-meter and they seem fine. They took a charge, anyway.

Off to B&B Hardware and Marvac Electronics for parts. The real find was at B&B (of course). A 14 watt halogen floodlight. Just the thing to provide good, bright light to make flats! So the project is this. Build a holder for the batteries and the light. The light will shine against a white surface and from there to the white towel that I use for flats.

OK, why 12 volt-based? Because I have the batteries. It will be portable, low tempurature, low risk. I think. We’ll see.

Tonight’s Sky

Attila Danko, of the Clear Sky Clocks has a cool new product. It is called “Tonight’s Sky” and is a tool to help you plan a night’s observing. You enter your location, the date and two parameters: one for difficulty and the other for type of object, and it generates a list. Try it out!

Tonight’s Sky

Why I Cancelled my LA Times Subscription

The LA Times gets taken by a buried internet hoax! Guess it fit too well with their twisted world view.

Wizbangblog — LA Times Burned By Fake Press Release

Well, it was cloudy anyway

So 60 minutes after it looked beautifully clear, it was completely cloudy. So it is a good thing I didn’t spend the time to do a set-up of the equipment.

The First Post

Welcome to the Observatorio de la Ballona weblog. This is the first post. It may be the last.

Tonight, like last night, turned clear after it was cloudy. It was really cloudy at 6:30 tonight. I went out at 9:15, and it was clear. If I had known, I would have opened the observatory and got some imaging in. And this is a night when I don’t have to get up until 7am the next day. These won’t last long. And yes, it is too late at 9:30 to start when I have to be conscious tomorrow AM.