Large Scale Central

New, simplified PnP adaptor.

Ads and Announcements Remote Control Systems
#1

Now available from RCS is a new Plug’n’Play adaptor for battery only conversions of any Large Scale Bachmann and Aristocraft locos equipped with the standard PnP socket.

It can be used with any non PnP R/C control equipment.

The # BATTERY-PnP is a plug in pcb pre-wired for plug in VIPER ESC using JST connections, Forward and Reverse lighting and battery + & - connections for the loco electronics.

INSTRUCTIONS PDF

This will be an easy way of converting the soon to be released updated Bachmann Annie, that will have a PnP socket fitted.

The kit with instructions will sell for A$ 19 and will be given away with the RCS EVO -VIPER ESC package deals for those that can use them.

#2

Nice product Tony, and thanks for answering my question about the Viper ESC that I was given. (It is a 12V and I wondered what it will do with a 14.4 Li-ion battery. Your website says they work up to 15V and get erratic with a fully-charged 16V Li-ion pack.)

#3

Thanks Peter.

I do have a Bachmann LYN derivative running on a 4s (1,500 mah) pack and a VIPER without any problems. So it seems it varies a bit. Could be the protection pcb’s I have fitted allowing a bit too much voltage out on some packs Master Instruments make for me.

The easy peasy solution to over voltage for the VIPER-10-12 volt causing erratic behavior is a couple of 3 amp silicone diodes in series to drop the battery voltage by about 1.5 volts.

They must be after the charge circuit and before the VIPER.

A much better all round solution would be if MTroniks could make them to withstand a little bit more voltage.

#4

Nice gadget Tony… Simplicity is often grand!

A 14.4V or 4S Li-Ion battery typically measures 16.8V off charge… Under significant load, voltage will decay quickly. That said our loads aren’t typically more than a few amps, as the battery is consumed voltage degradation ensues and the battery will cruise around 15.0V all the way to recommended voltage cut-out. NOTE: “recommended cut-out” is not until the battery stops working… There are lots of 18650 Li-Ion discharge graphs available online for those interested.

Michael

#5

Hello Michael.

Thanks for the information.

The problem is not really the batteries.

The VIPER specs are for 12 volts nominal. Great if you can fit 10 x NiMh or NiCd cells in a pack. They can handle 15 volts actual, but not 15.1 volts actual.

In all other facets the VIPER ESC’s are terrific. Low cost, prewired with JST plugs and sockets and a genuine 6 amps if needed.

They are potted and waterproof, so are not user serviceable, but I have yet to blow one up.

#6

Looks like I will just have to try it. . .