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Battery setup for 2 brushed motors

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Battery setup for 2 brushed motors

Old 05-17-2020, 10:48 AM
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ricko99
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Default Battery setup for 2 brushed motors

I am new here and hope I posted this in the right place. I have a Dumas Dauntless with twin 850 size motors. My original thought was to use 4 Turnigy 3000mah 3S 20C batteries with 2 batteries wired parallel for each motor. After reading how its better to keep the batteries balanced would it be better to wire all 4 parallel and then split them to go to their respective motors. I ask because in the original way I would need to tee off one side to power other accessories.
Old 06-14-2020, 04:42 AM
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canabus
 
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Originally Posted by ricko99
I am new here and hope I posted this in the right place. I have a Dumas Dauntless with twin 850 size motors. My original thought was to use 4 Turnigy 3000mah 3S 20C batteries with 2 batteries wired parallel for each motor. After reading how its better to keep the batteries balanced would it be better to wire all 4 parallel and then split them to go to their respective motors. I ask because in the original way I would need to tee off one side to power other accessories.
Parallel three batteries and use the other for accessories.
Canabus
Old 06-14-2020, 10:17 AM
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mfr02
 
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Nothing wrong with 3 or 4 parallel banks as long as they all charge and balance together. That is exactly what goes on inside laptop batteries. Several banks parallelled together.
A fused distribution board to spread the power among the various loads (BEC, ESCs, Accessories) might be worth considering. That way, if an unfortunate event on one ESC takes out one fuse, you have the chance to get back on the other rather than watch the smoke coming out of your boat. Some boards carry their own BEC which would be unaffected by an ESC going south, and keep the radio working.
Old 06-28-2020, 09:34 AM
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satlite440
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agreed a distribution board is the way to go..not only for the limp in ability but also powering accessory's are you going to use hard case or soft case lipo's..if soft case you might want to secure them somehow so they dont get slamed around in the hull
Old 06-28-2020, 09:47 AM
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mfr02
 
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Whatever type of battery is used it needs to be secure. Apart from whatever it is that stops the battery damaging the battery, the battery is often quite capable of damaging whatever it is that stops it. Very important in a fast boat. Then there is the question of what the weight of the battery is going to do at the trim of the boat if it doesn't stay where it should. Important in a scale boat.

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