hi, I did sent many emails to all the address u guys have on your website but no reply. All my friends in Singapore are worried abt their hobbywing esc now. Pls gv me a better email address thx

You can also contact direct at alanhoon@yahoo.com.sg

Seems like we can have something to expect from Hobbywing's after sales support. It kinda boost my confidence in getting the HW 150A esc. :D

wat I m worried is, can I still set d punch on a new esc

Does this happen on the 80A version?

we dun knw yet but so far is too 150amps, my friend blew a 60a dun knw y too.

I had my 80A set to 1 for a while and no probs. I never set the 150A to 1. One thing to remember is that the HW ESCs, the punch settings are opposite that of Castle's ESC. For Castle, the higher the setting, the MORE punch control you have meaning LESS punch. For HW, the higher the setting, the LESS punch control meaning MORE punch.

So far so good.

I dun think so, the manual says the higher d no the higher the punch for 150a

Isn't that the same as wat JSR has mentioned?

"Level1 has a soft start effect, while level9 has a very aggressive start effect" from hobbywing manual

For HW, the higher the setting, the LESS punch control meaning MORE punch (by JSR)

Isn't it the same?

superek4 - we are saying the same thing. I just mentioned that to highlight the difference between HW and CC.

Thanks LG.

I was feeling confused. Just wanted to be sure that both of you are saying the same thing. Anyway I've received my HW80A. LOL this thing looks like it needs to go on a diet. Seriously something is wrong with the engineers at HW. What were they thinking of when they designed the heatsink/fan? Do u really need 4 M6 screws (total 10g) to hold a 20g fan to a heatsink?

The actual weight of the esc (with all the stock wiring) is 178g.
And what is the white stuff that is sandwiched between the heatsink and the heatspreaders? It is sort of jelly like and doesn't seem to conduct heat very well. It doesn't feel cool to the touch as well. And there is some distance between the heatsink and the heatspreader. They dun actually touch at all. The heat transfer may not be very efficient in this matter.

The white layer din't come into contact with 2 rows of heatspreaders. I had to change the orientation of the layer so that it touches most of the heatspreaders. Can anyone explain what is the white stuff? Is it some kind of thermal pad? Is it safe for the heatspreaders to be eletrically connected? I mean can I place the heatsink directly onto the heatspreaders without the white layer (thermal past will be used in place of that)? Some modding will be neede though if i were to do this.

Sounds like either thermal grease or thermal pad (not sure since you first mentioned a jelly like substance, then a white pad later). Direct metal to metal contact is actually a poor method of heat transfer as neither surface is truly flat enough to conduct heat efficiently as air is a poor heat conductor. A thermal layer is usually used to account for the lack of actual contact between surfaces. Not sure how far the heatspreaders and heatsink are. How can you tell they're far apart? Because of how much jelly there is when you pull them apart? You also have to consider the environment the part will be used in. Perhaps they wanted some space as an impact from the top would translate directly to a compression of the PCA beneath if they were in direct (or near direct) contact, which may happen in an RC application (i.e. if the car/truck flips over with no lid).

The heatsink is about 2mm away from the heatspreaders and in between is a layer of white pad that is made of some material that feels like hardened jelly.

I will try to take a picture of it when i get the chance to take apart the esc.
Right now it is in my e-savage.