question about installing a re-charge port on Heng Long King

[dgsselkirk]

Greetings!

First thanks to everyone on this site for the wealth of information. I am an old scale modeler who has decided to get into these 1/16 IR machines.
My first tank is a Heng Long King Tiger. already in lots of pieces! LOL! If it comes out alright I will put my build on the site for everyones perusal.

My first question to the electronics experts here... Rather than having to flip the tank over all the time to change the battery I am thinking about installing a splice off the battery line and running a plug to the back and having it underneath the tool? box on the back top right corner. My question is if the tank is turned off and I plug in the recharger will this have any effect on the boards? I realize that when you remove the battery obviously nothing is going to the boards. But by splicing it the charge current will still be connected to the main board but my thinking is that if the power switch is off it should not be an issue.

Now before someone mentions the obvious that you won't be able to operate the tank well charging, my plan is to have 2 or 3 on site so that well one is charging I will use another.

I just think somewhere along the line flipping it over, undoing the screw, pulling the plug out, etc... an accident is bound to happen! I'm older now, I drop things!

Looking forward to the discussion!

TXS
Dean
Kitchener, Ontario, Canada

[streetfighterjeff]

why not open the engine hatch, put in a three position switch and mount your recharge socket there? i have mounted my switches there, and i'm thinking of putting a charge port there as well. only thing is you have to park the tank with the turret turned, or you cant get the hatch open. lol
jeff

[MichaelC]

I just ordered a V cable online hoping that it will work as an extra charge port. I converted a WSN T34/85 to a SU-100 with Heng Long electronics and the battery compartment even though it is not the screw in type won't fit the Heng Long battery so it has to stay inside the tank at all time. The V cable has a Tamiya male (to the battery) on one end and then splice into two Tamiya female ends, one to plug into the tank and the other one to plug into the charger. The battery is connected to the tank all the time, and then to the charger at the same time when charging. I don't see why won't work, actually even if you have the charger plug in and charging at the same time but obviously I won't be doing that.

[FreakyDude]

Dean, I really recommend you have a switch that will turn ALL electrics off on the tank when you are charging. It may be ok to wire it up as you say but for the price of 2.00 and 20 mins of your time the safety really adds up.

[dgsselkirk]

Thanks for the info Michael, will post here what I figure out.

[MichaelC]

Okay, got my Tamiya V cable and it definitely will work as an extra charge port. Has no problem charging the battery when I leave it plug into the battery compartment connector. I did not try to turn the tank on, but really has not reason to try it either. I just want a simple solution to be able to leave the battery inside the tank as mine is a converted WSN which has the square compartment. Both Welshdragon and Asiatam carry the cable for couple of bucks.

[dgsselkirk]

Sorry about the delay in getting back to you...

Not a bad idea, may do that on another one as I have already worked out the back tool box position.
I just like the idea of backing it up to the charger and putting the plug in it's butt. Nice and clean....

[streetfighterjeff]

still, you need to be able to isolate the rest of the electronics while you charge the battery, hence the three position switch. position one gives you power to the tank, two turns everything off and three isolates the tank but lets you charge the battery.
jeff

[dgsselkirk]

Yes, I agree. Better safe than sorry!

[jrc]

hi Dean

I've fitted charging sockets to all my tanks and I wouldn't recommend a splitter as power is still being fed to your board.

The method I used is shown in this link below to another discussion held previously, hope it helps.

jr

http://www.rctankwarfare.co.uk/forums/v ... 872#p63391