Thanks again all. So much to learn. But I need a hobby.

I will get the kit with the servos and build it from there.

Now I need to find a good power source. In the sales post they state I have to buy a "HM battery X 1" because they can't ship it.

I guess they think about "MH" battery.

@Jeremie... Thanks dude...

@Leaderone You should buy a lipo or niMh for your power needs...

@Anthony ... Which fuse?... poly or main fuse? I don't think that is correct (or oversimplifying things), Anthony... I have pulled way more than 5amps ( a burst or two) threw the ezb board without tripping the poly or burning out the main fuse... Remember what Jeremie said... 5amps continuous with 20 amp bursts....

I don't think you'll burn the main fuse drawing 5amps, since it is a 20amp fuse...

Here's the manual for the ezb4 EZB4 Data sheet

I think what you referred to as "freaked out" and resetting was due to power supply issues... Your battery couldn't provide enough current so your ezb reset... it is a classic power issue... So I am willing to bet your ezb reset due to an under volt situation and not because the poly fuse was tripped...

Once I tripped the poly fuse (because of 5 locked servos), my ezb did not reset (I was using a 10amp niMh D cell pack)... All that happened was the ezb4 stopped responding... servos would not move nor did the digital ports respond... Powering it off for a few minutes reset the poly fuse and all was normal after that...

@RR is correct, the main automotive blade fuse is rated for 20Amps.

I suspect the issue might be the brand HDservo. I have never used that brand and have have no experience with them. I'm guessing they draw quite a bit of current which Anthony's power supply, wiring, or connectors possibly cannot handle and it's browning out the ez-b.

I could be mistaken but If we could get a sample servo I could do some tests.

I also have a variable bench top power supply that is rated for 10A and it also will brown out when trying to power over 8 servos at the same time. This is because of in-rush current. You will not see it because it's so quick but the servos are demanding more than 10Amps in a burst, the voltage then drops to try and keep up, at that moment the voltage goes so low that the ez-b resets.

The 6 has 12 servos and runs off of a 7.4 v lipo. It can move all servos at the same time. It does this when starting from its "legs closed" position and going to the stand position. These are all HD servos. All of the power is coming from the ez-b.

If you were to do a lot of movement, you might want to power off of an external power source. I have not had the issue you are having with any of my 8 ez-b v4's. To be fair, one of them has the servos being powered from a different supply due to brown out issues I was having and to provide some components with 5v, some with 6v and some with 7v. The side effect of this is that it allows me to power the devices off of multiple battery packs, but I haven't had the poly fuse flip on me an any of the robots.

Took me a while to type that on my phone. Caused me to miss Jeremy reply.