More AA battery salvage

cb92 · 12-11-2011, 11:52 AM

My AA battery/joule thief lantern is working fine, now I'm trying a regular flashlight. No joule thief this time, the bulb is incandescent, and I'm really cramped for space. I do have a series/parallel setup, hope to accomplish that with a simple wire swap.
My problem is the AA battery receptacle is putting out over five volts from each receptacle. I'm afraid I'll blow the 3 volt bulb. Is there anything I can do to protect the bulb that doesn't draw too much from the batteries? Will this remedy keep the bulb bright as the batteries run down? When the batteries drop to a low voltage, I plan to switch to series.

12-11-2011, 11:52 AM	#1
cb92 Senior Member Join Date: Jul 2008 City & State: St. Thomas USVI Posts: 156	More AA battery salvage My AA battery/joule thief lantern is working fine, now I'm trying a regular flashlight. No joule thief this time, the bulb is incandescent, and I'm really cramped for space. I do have a series/parallel setup, hope to accomplish that with a simple wire swap. My problem is the AA battery receptacle is putting out over five volts from each receptacle. I'm afraid I'll blow the 3 volt bulb. Is there anything I can do to protect the bulb that doesn't draw too much from the batteries? Will this remedy keep the bulb bright as the batteries run down? When the batteries drop to a low voltage, I plan to switch to series.

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Switch to Hybrid Mode Threaded Mode