Anyone have an idea about how long a single AA battery might power 6-8 1.5v microbulbs? Trying to plan lighting effects on my N scale container crane and have a small stash of these bulbs. I know LEDs would last longer, etc, but I don't really want to be soldering a bunch of wire leads. This probably wouldn't be for a full-time effect, but rather when there's visitors, etc. Thanks!
Hi, Based on this site a double A (AA) battery has a capacity of 2000 mAh and is designed for a typical drain of 50 mA Base on the 50 mA and the 2000 mAH then it should last about 40 hours, but this numbers will change based on the current draw of your bulbs. Battery life = 2000/bulb current draw in mA There are a few other solutions to the battery life: Use rechargeable batteries. Their voltage is 1.2 normally and come in different AH ratings. The lower voltage will result in a longer bulb life. Solves the need to be replacing and buying new batteries all the time. Wire the bulbs in series and use a wall wart to power them forgetting the batteries altogether. Hope that this helps some. Regards, Gary
