I've been using one of the spring loaded holders with NiMh cells for over a year now with no problems. Hand not heard of any problems with them until now. Curious is anyone else has. Happy flying, Jimmy -- Designer/System Integrator for the "Vector P" UAV (http://www.ase.w1.com/vector.html) For the best in sailplane protective carrying soft packs, Airtronics, Diversity Model Aircraft, FMA, Hobby Lobby, Hitec, Multiplex, and Trick R/C go to: http://jtmodels.net or e-mail [EMAIL PROTECTED] JTModels Web Creations http://members.xoom.com/jtmodels Phone: (727) 372-5914 Fax: (727) 372-5916 RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]