Xref: utzoo rec.autos.tech:25369 sci.electronics:21161 Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!mips!pacbell.com!lll-winken!llnl!tazdevil.llnl.gov From: rspangle@tazdevil.llnl.gov (Randy Spangler) Newsgroups: rec.autos.tech,sci.electronics Subject: Build charger for car battery ??? Message-ID: <883@llnl.LLNL.GOV> Date: 25 Jun 91 17:13:44 GMT Sender: news@llnl.LLNL.GOV Followup-To: rec.autos.tech Distribution: na Organization: Lawrence Livermore National Laboratory Lines: 23 I'm working on a car, and in the process draining the battery quite rapidly. It's not really drivable, so recharging it by driving around after jump-starting isn't an option. I've got a few 12V and 15V transformers and other spare parts, and I was wondering how hard it would be to build a trickle charger for the car battery. My best guess would be a 12 VDC transformer, resistor-limited to about 100 mA and with an ammeter hooked in series to determine how much current is still flowing into the battery. Can someone out there enlighten me further? -------------------------------------------------------------------------- | Randy Spangler | Get your mind out of the gutter | | rspangle@tazdevil.claremont.edu | you're blocking my periscope | -------------------------------------------------------------------------- -------------------------------------------------------------------------- | Randy Spangler | Get your mind out of the gutter | | rspangle@tazdevil.claremont.edu | you're blocking my periscope | --------------------------------------------------------------------------