On 12/22/22 11:42, Paul Koning wrote: > I just read the battery chapter of the ARRL Amateur Radio Handboo, > which discusses this particular point at some length. > Among many other points it says (a) you can trickle charge a NiCd but not a > NiMH, and (b) NiMH requires a more complex charging algorithm than NiCd, so > that NiMH chargers are also capable of charging NiCd batteries safely, but > NiCd chargers cannot charge NiMH cells without the risk of damage. > > I suspect NiMH charger circuits can be found. Buying $3 Chinese ones may > work, or not; I keep remembering that China disallows selling unsafe > equipment within the country but doesn't have any rules against exporting > such things. > > A good read on the issues of NiMH battery charging can be read here:
https://www.electronics-notes.com/articles/electronic_components/battery-technology/nimh-nickel-metal-hydride-charging.php It pretty much says that "you're damned if you and damned if you don't". I wonder how many really good NiMH battery chargers are out there. Give me LiFePO₄ any day! --Chuck
