Model Boat Mayhem
The Shipyard ( Dry Dock ): Builds & Questions => Pleasure boats, Sports, Race, Power and Leisure Boats: => Topic started by: davidsg1a on September 08, 2012, 10:07:50 am
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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
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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/
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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
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Searching suppliers of 7.4 v NiMH.
All I can find are 7.2 v :}
Ned
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That's because these batteries contain 1.2 volt cells. 8)
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Just had a thought (dangerous yes I know) When the 7.2 volt are charged they can go up to 8.4 volts :}
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Thanks for the info, is there any rules on the amps of the battery?
David
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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
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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.