the resistor would dissapate 3 times the power of the motor
also the voltage would change with power setting - maybe zap your trolling motor
Since regulation is not very critical a primitive switcher would be easy to build
--Kirk
May you be in heaven a half hour before the Devil knows your dead.
From: Kellan <kellan_hatch@hotmail.com>
To: electricboats@yahoogroups.com
Sent: Wednesday, September 21, 2011 2:30 PM
Subject: [Electric Boats] Using a 48V battery with a trolling motor?
To: electricboats@yahoogroups.com
Sent: Wednesday, September 21, 2011 2:30 PM
Subject: [Electric Boats] Using a 48V battery with a trolling motor?
Hi,
I have a 48V 15ah lithium ion (LiFePO4)battery that I use for an electric bike I built. I would also like to use it to power a small boat, possibly my CLC Mill Creek 16.5 open cockpit kayak. The simplest thing for starters would be to use a stock trolling motor. Will I need to step the voltage down to 12V? Can I do that with just a resistor? If so, how do I determine what resistor to use.
Thanks,
Kellan
I have a 48V 15ah lithium ion (LiFePO4)battery that I use for an electric bike I built. I would also like to use it to power a small boat, possibly my CLC Mill Creek 16.5 open cockpit kayak. The simplest thing for starters would be to use a stock trolling motor. Will I need to step the voltage down to 12V? Can I do that with just a resistor? If so, how do I determine what resistor to use.
Thanks,
Kellan
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