The new Smart Charger charges up to 10 different batteries at one time for Hornell's Speedglas Fresh-air II respirators. The unit charges batteries in about 6 hrs. and can be left plugged in over a few days. Charges last up to 8 hrs. Contact Hornell Speedglas Inc., Dept. FIN, 2374 Edison Blvd., Twinsburg, OH 44087, 800/628-9218, www.speedglas.com.