Recent content by krisbo

For those of you keeping score, the Birdie ESC doesn't have a neutral. As soon as you release the throttle it applies the brake just like a plane ESC. The SS series ESCs won't work the way we want either. HK are now telling me that the only boat ESCs that will work with forward, neutral and...

Just pulled the trigger on the Birdie 100A with 5A BEC. HK support assure me that it will work as I want it to. Pulling the trigger to accelerate, neutral when the trigger is in the middle and brake as I push the trigger away from me.

@Torque More voltage doesn't necessarily equal more torque. If you were to use a transformer to increase voltage then torque would decrease because the amperage would decrease. However, if you increase voltage by using increasing the number of LiPo cells then with this increase in voltage there...

The only scenario where increasing voltage doesn't increase current is if the power source remains constant. By that, I mean if instead of changing from 4S to 8S, you use a 1:2 transformer, or a voltage doubling circuit. With the 2000 watts to get you to the top of the hill example, what you're...

You know what, I'll give one of the Birdie ones a crack and post my results. The more ESCs we have info on here the better :-) The 125A SS looks similar and I have a spare UBEC but the only difference seems to be that it'll go backwards, which I don't need at all...

I think you've got that wrong there, here's how I understand it. Think of voltage and current in terms or water. Voltage is pressure and current is flow rate. Increasing the water pressure will definitely increase the flow rate. Current increases by the square of the increase in voltage. So if...

@Torque I'm running a single motor set-up on my rear right wheel. With a dual motor set-up I would have thought the difference would be less noticeable. Something I've overlooked is that I have a heap of 3S 2200mAh batteries I use for my planes that I haven't thought of using them for testing...

@Torque I've got a 7S setup by running 2 x 2S and 1 x 3S in series which gives me better ground clearance. I notice a fair difference especially going uphill between 5S and 7S. That's why I'm really trying to find a 7S ESC with decent braking as opposed to using the 6S ESC mentioned in this thread.

If you were really keen on trying to fry your 90A HK ESC you could try and run it on 7S for me :wink:

Do you reckon the good braking is only specific to this ESC or a handy feature for all boat ESCs? I run a 2 x 2S & 1 x 3S in series to effectively give me a 7S battery. In order to downgrade to 6S for the ESC you're taking about I'd need to buy either another 3S or another 2S. Any thoughts on...