Re: Replacement batteries: Ni-Cd vs Ni-Mh
Mark,<br /><br />saw the thread to late but for future reference.<br /><br />I hate it when suppliers force you into buying product based on lies. The basis of both batteries is very similar with differing chemistry. NiMh is a newer generation battery normally capable of producing more power per volume. I also think that manufacturers were having an environmental problem with Cd.<br /><br />The recommended slow charge cycle is the same for both and is normally 1/10th of the rated Ah capactity of the battery for 12 - 14 hours. This of course can be sped up by increasing the charge current and reducing the time. Intelligent chargers do this.<br /><br />Your NiCd charger would have done the job perfectly. I have both NiCd and NiMh batteries and I use my home built NiCd constant current constant voltage charger, have done for years, with no problems. The difference between these batteries and lead acid is that they require a controlled constant current.<br /><br />I am surprised that your google search showed the opposite. My google search supports what I say, type in "charging NiCd and NiMh".<br /><br /><br />Cheers<br />Andrew<br /><br />PS: Old NiCd's used to have a memory, that was many years ago. Later NiCd's do not have a memory.