ChopperAddict's Hints & Tips


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   HOW TO - How to connect up the Acer Labs 40 ESC correctly
I think this is probably quite obvious to many, but perhaps not to everyone.

I have used the Acer Labs 40A Esc on many helis over the last few years, and have found them to be reliable, cost effective and well suited to the Belt CP and similar sized helicopters.

However, and quite typically these days, the documentation that comes with it can be a little misleading, so I want to clarify a few points that I have been asked over a period of time.

The first thing is that there is a stringent and even highlighted warning pretty well at the top telling you that you MUST connect the short 3 wire lead with the female style plug to the balance plug on your Lipo, and then only connect it up in a certain order.

Unless you happen to have the 25A Acer Labs ESC ONLY, THIS IS NOT TRUE, and indeed, the fittings are different anyway so they will not connect.  


Also, it is a fact that many people misunderstand the rating system for ESC's too, and think that the more power an ESC can handle, the more power their helicopter will have - WRONG

In fact, it is in some ways just the opposite, because the more power that an ESC is capable of handling, the more power it draws itself, so if you replace say the stock E-Sky 25A ESC with a 40A Acer Labs ESC, and then go flying with a 15C lipo, you may well get quite a nasty shock, as the power will be down, not up as you might have expected.

The way to handle this is to ensure that you get the highest C rating lipo you can obtain that fits your helicopter.  Even though your Lipo may be rated at say 1800 MAh and 15C, if you put in a different 1800 MAh that has a 25C rating, you will be amazed at the difference in power your helicopter will have, and be able to use safely.

The other thing to note is that Acer Labs 40A ESC has it's own switched BEC, so is more than capable of powering powerful servos, including digitals that usually insist on having a BEC to provide a stabilised power source for them.


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