can a nicd battery be used for the 4dof T-Hex instead of the nimh or they both the same? is there any difference between the batteries and will it cause any problems if i use the nicd battery?
NiCd batteries have memory issues. For example if you only use half the battery and then charge it, you’ll have less to use the following time. This “memory effect” builds up over time and eventually renders the battery useless. NiMh don’t really have this issue which is why they are far preferred and NiCd are disappearing. The only advantage with NiCd is that the prices are dropping. You can use NiCd if you’d like without issue, just be sure to use either 4.8V or 6V.