
Yesterday, I had a tool battery that was showing up as defective on my new, fast charger. It was an 8 year old 18v 4Ah lithium-ion battery, and I thought that maybe it just gave up the ghost and finally died. I plugged the battery into another charger, of the same model, and it still showed up as defective. Over the years, I have learned that when the charger reports the battery is defective, it might either be the battery is actually defective with bad cells, or it is so low in charge that the charger cannot charge the battery pack up from that low level. Thinking about the later, I remembered that I had an old, slow, charger from way back when that I put away in one of my shop drawers. I took it out, plugged in the "defective" battery, and lo and behold, it started charging it up. In a couple of hours, I had a fully charged battery.
A new battery to replace the 4Ah pack I have would cost about $100.00 retail. I am not suggesting that my 8 year old battery is still worth $100.00, but that's how much it would cost to replace the battery by itself. Point is, I was able to use my old, slow, outdated charger (that I decided not to throw away) to bring a battery back to life and saved myself a $100.00 replacement bill.

OK, the tie in with the chickens is that I do almost all my own builds by myself, with my DIY tools at home. I built my entire chicken coop by myself with my DIY tools. If I can save $100.00, I think it's worth a shout out on the BYC forums.