DIY





Make 9-Volt Batteries Last as Long as Possible

Here’s how to use every last drop of charge from 9-volt smoke detector batteries.

| April/May 2015

I was always stumped about what to do with partially depleted, 9-volt smoke detector batteries. They’re usually drained enough to cause the smoke alarm to chirp (typically at 2 a.m.), but they still have some juice left, so I hate to just recycle them. I looked around for another device to use the batteries in, such as a transistor radio, but few items use 9-volt batteries anymore.

Recently, however, I found a little LED Blocklite flashlight that does use a 9-volt battery. For about $5, you can turn your old battery into a compact — and surprisingly bright — flashlight. Now my little light goes with me on evening walks, and it lives on my nightstand. I plan to get several more!

Derek Purdy
Sunnyvale, California

www.EasyWoodwork.org
5/27/2018 11:54:59 PM

I used the plans at WWW.EASYWOODWORK.ORG to build my own – I highly recommend you visit that website and check their plans out too. They are detailed and super easy to read and understand unlike several others I found online. The amount of plans there is mind-boggling… there’s like 16,000 plans or something like that for tons of different projects. Definitely enough to keep me busy with projects for many more years to come haha. Go to WWW.EASYWOODWORK.ORG if you want some additional plans :)


lakkasomasekhar
12/31/2015 3:54:15 AM

respond properly and give green to overall earth


lakkasomasekhar
12/31/2015 3:48:47 AM

please give me one batery to my home







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