There's no end to the NUMBER of receptacles. You just have to make sure that the wiring and fuse to each can handle whatever load you propose to put on it. Seem to remember someplace here, that the Valk alternator can power something like 45 amps, or 500 watts! Someone might know how many of those are "free" amps or watts, in other words, what's NOT used for just running the Valk. But suppose 30 amps are free - that means you could technically have 10 receptacles, with 3 amps on each. Or, you could have ONE, with 30 amps. I just looked at a bunch of my chargers, and they seem to range between .8 amps, and 1.5 amps, with most around 1.2. I would think that you could have 5 easily, all working at the same time, without any problem. Where you might run into trouble, is powering heated vests or similar - usually POWERING something takes a lot more oooomph, than just charging something - in other words, if you have a battery powered heated vest (like mine), it charges at 1.3 amps. However, I think one directly connected to the battery can pull 4 or 5 amps. This is from the "heated-clothing" website:
For riders who are thinking of buying heated clothing such as a heated vest that connects to your bike’s battery, you also need to consider the power of your bike’s alternator output. Although the larger touring bikes have plenty of battery power, some smaller or older models can be a problem. Imagine what can happen if you run your battery down by having both your heated grips and heated vest switched on or forgetting to turn off the heat several minutes before shutting off the bike. You won’t enjoy having to bump start your bike out on the road.
Again, it's not the number, but the current draw of everything, that matters. As for your situation, 3 should be NO problem, especially if you don't have a LOT of extras, like numerous lights, and other power gobblers hooked directly up to the battery. Just make sure you have stout enough wire, and fuse, for the load.
R
