RC Tank Warfare community hobby forum

Hey Guys,

Looking for some guidance in selecting the right battery from an mAh and discharge rate "C". I know I can used a 7.2V 2S or a 11.1V 3S per the manufactures instruction to power the "control board".

I have all metal drive components and HL Ultimate II gearboxes and motors. I will be using servos for recoil, elevation and traversing operations. Standard lighting....main gun, MGs, headlights, brake lights and undecided about main gun flash. I will be powering receiver from the control board as well.

I will not be using the tank in simulated combat so running time may be 1, 2 hours tops. With that in mind I will not need to "quick charge" battery so a standard charge cycle will fit my needs.

Thoughts/Opinions?

Thanks,
Barry

This is what I run in my tanks


It's a Lipo...it will fit in the stock HL battery box...it will easily last the time you said you would run
I don't care what anyone else on the board thinks....but this is the charger I use...It's a smart charger that is really smart...not like the type for carbon based batteries that will cut out at 2hours

Very reliable...IMO better than the more fancy multi use chargers


ALPHA

Barry,

This is what I used:
http://www.hobbyking.com/hobbyking/stor ... duct=21001

The battery dimension is exactly the same as the Heng Long battery compartment. You will need to open up a little bit in the battery compartment on the top so that he heavy gauge wires and bullet plugs will go into the hull. Now if you have a metal Taigen hull then you don't need to worry. Fits exactly as the stand Heng Long battery but packs a punch and last a hell alot longer.

You will need to get a bullet type to Tamiya plug converter but you can get it at Hobby King too.

I also used the same as ALPHA's charger as a secondary charger. Good little bugger actually. My main charger is those fancy pants one that ALPHA doesn't like.......

Thanks guys!

Is there any advantage to using a 11.1V over a 7.2V?

Barry

Are you on Heng Long Electronics ? They will only support 7.2v/7.4v. It all depends on what the electronics will support.

MichaelC wrote:Are you on Heng Long Electronics ? They will only support 7.2v/7.4v. It all depends on what the electronics will support.

No the HL electronics are out.

Barry

you're in the states, so I'd get some SMC batteries like these: http://www.smc-racing.net/index.php?rou ... uct_id=247

Super cheap, very high quality, high discharge and they make cells for many other companies which charge a ton more for them. Very popular in the racing scene and I have 8 SMC batteries of various sizes myself.

billpe wrote:you're in the states, so I'd get some SMC batteries like these: http://www.smc-racing.net/index.php?rou ... uct_id=247

Super cheap, very high quality, high discharge and they make cells for many other companies which charge a ton more for them. Very popular in the racing scene and I have 8 SMC batteries of various sizes myself.

Thanks for the link, I will keep them in mind as get closer to ordering.

Barry

billpe wrote:you're in the states, so I'd get some SMC batteries like these: http://www.smc-racing.net/index.php?rou ... uct_id=247

Super cheap, very high quality, high discharge and they make cells for many other companies which charge a ton more for them. Very popular in the racing scene and I have 8 SMC batteries of various sizes myself.

I bet you they probably make it for Hobbyking as they look identical in the packaging although for some strange reason HobbyKing is cheaper. I think it is also 40C whereas the Hobby King ones are only 20C.

Barry, are you on IBU2 ? I know Clark won't handle 3S. Don't know about Elmod. None of the Heng Long/Taigen/Torro stuff will handle 3S either.

Edit, sorry Barry....... Just re-reading your post, I think you are going with Clark, right ? In which case you won't be able to use 3S, only 2S, and even then I have had some issues with freshly charged 2S which could delivery up to 8.9v. I think Clark has fixed it now, but I have couple of boards died on me.

No, HK are made in China, SMC are made in the states. I've got HK Turnigy and zippy batteries and those tend to be physically larger soft packs than the equivalent SMC (and other makes like Gens Ace and Reedy) hard pack and have lower specs. HK really are the absolute bottom end of the spectrum when it comes to batteries which is why they are so cheap.