Help me, O Dopers with electronic/engineering knowledge:
I have a Panasonic analog camcorder that came with PV BP-18 rechargeable batteries. The camcorder is now about 5-6 years old and the batteries stay charged for about 30 - 45 minutes tops even when I let them run down all the way before recharging. I am pretty sure I need new ones.
Going onto eBay, I see plenty to choose from. Based on my research of the listings, there appear to be at least two issues to consider:
Do I want NiCD (Nickel Cadmium) or NiMH (Nickel Metal Hydride) replacement batteries? Can you explain why to someone with limited knowledge of this stuff?
How important are mAH? Okay, let’s start with what are mAH - I assume milli-amp hours? There are listings for batteries with mAH ratings of 1500 or so, all the way up to over 4000 - is it worth spending a little extra coin to get the higher rating?
Anything else I should look for in terms of performance? It goes without saying that I will only buy batteries that remain factory sealed, etc. etc. - in terms of standard eBay diligence.