As you may have noticed commercial NiCd/NiMH battery charger’s are not that efficient when it comes to charging time. There might be some expensive models but we are not referring to that. So Peter Hayles, the author of this project decided to build its own efficient NiCd/NiMH battery charger. He says that with the DIY charger he managed to cut the charging time from 4 hours to 1.5 hours max. This sound good to me.
Efficient NiCd/NiMH Battery Charger : [Link]