Model Boat Mayhem - Forum

Dry Dock / Shipyard: Builds & Questions => Pleasure boats, Sports, Race, Power and Leisure Boats: => Topic started by: davidsg1a on September 08, 2012, 10:07:50 AM

Title: Club 500
Post by: davidsg1a on September 08, 2012, 10:07:50 AM
Hello everybody

Im just wandering what sero and battery people are using in there club 500s, at my club in Glasgow there is 9 of us going to build them and we want to know what every body else is using in them.

Look forward the hearing your wisdom. :-))

David
Title: Re: Club 500
Post by: red181 on September 08, 2012, 12:26:04 PM
if you are going to race as per the standard rules, then the only battery permissable is a 7.4v nimhs pack. If you are going to just mess around, then anything!

Servo, I use a small micro servo, to save weight! we are a very competitive bunch that race at St Helens Model Boat club! weight is the enemy with these boats :-))

http://www.ebay.co.uk/itm/HXT-9g-micro-servo-x4-RESIN-gears-futaba-Hitec-UK-stock-/150872054125?pt=UK_ToysGames_RadioControlled_JN&hash=item2320acd96d

http://www.sthelensmodelboatclub.co.uk/
Title: Re: Club 500
Post by: TheLongBuild on September 08, 2012, 04:29:31 PM
http://www.sthelensmodelboatclub.co.uk/

Well they certainly park their 500 hundreds pretty well, at least Duracell does !! :} :}  Inter Club soon  :-))

Also no extra weight, trims etc if your racing 
Title: Re: Club 500
Post by: Netleyned on September 08, 2012, 05:51:11 PM

Searching suppliers of 7.4 v NiMH.
All I can find are 7.2 v   :}

Ned
Title: Re: Club 500
Post by: Tug-Kenny on September 08, 2012, 10:00:13 PM

That's because these batteries contain 1.2 volt cells.     8)


Title: Re: Club 500
Post by: Tug-Kenny on September 08, 2012, 10:01:55 PM

Just had a thought  (dangerous yes I know)  When the 7.2 volt are charged they can go up to 8.4 volts    :}


Title: Re: Club 500
Post by: davidsg1a on September 09, 2012, 08:12:28 PM
Thanks for the info, is there any rules on the amps of the battery?

David
Title: Re: Club 500
Post by: Tug-Kenny on September 09, 2012, 08:21:02 PM

Yes, it's a number followed by mAh   (milli amps per hour)

For example 1000mAH  is 1 amp for one hours running. You can see by this the amount of time you can expect the motor to run.

Hope this helps

Title: Re: Club 500
Post by: malcolmfrary on September 09, 2012, 08:23:48 PM
Just had a thought  (dangerous yes I know)  When the 7.2 volt are charged they can go up to 8.4 volts    :}



You are still stuck with 6 cells, and the battery saying 7.2 volts on the label.  I don't recall anybody mentioning an A/H limit, but generally, for a given size, the higher the A/H, the heavier the battery.