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How To Choose the Perfect Electric Boat Motor

Written by John Wren|

A transom-mount electric trolling motor on a small aluminum boat
A transom-mount electric trolling motor on a small aluminum boat

A 55-pound 12-volt tiller is the usual first motor on a jon. Minn Kota Endura C2 for fresh water. Newport NV-Series if you want a meter and a rinse-after-salt habit. Confirm shaft length.

Key takeaways

  • Thrust follows loaded weight.
  • Shaft keeps the prop wet.
  • Deep-cycle only.
  • 55-pound tiller is the first ramp motor.

An electric boat motor is thrust you sized to the hull, a shaft that still buries the prop, and a battery that is a deep-cycle — not a car starter. The short answer: a 55-pound transom motor is the usual first tiller on a jon or a small skiff; go up in thrust if the boat is heavy or the water is a river.

Short version. Motor types is the family. Why a trolling motor is the sermon. Pair with batteries and battery life. Check live prices.

This page is electric kicker and troll motors you can buy without a dealer visit. A 9.9 four-stroke is a dealer. An outboard that is not electric is a different aisle.

A transom-mount electric motor on a jon at a quiet dock. Thrust, shaft, and a deep-cycle battery.
A transom-mount electric motor on a jon at a quiet dock. Thrust, shaft, and a deep-cycle battery.

Thrust is the hull, not a brag number

A common rule is about two pounds of thrust per hundred pounds of loaded boat, then more if you have current or wind. A 12-foot jon with two people and a cooler is a 30- to 55-pound class. A heavy fiberglass skiff or a river is 55 and up, or a 24-volt. A 30-pound motor on a loaded 16-foot is a motor that will not hold the bow. Size up if you are between numbers. Heat and weeds eat thrust.

The Minn Kota Endura C2 55 is the live freshwater tiller we named: 12-volt, 42-inch shaft on this listing, five forward speeds, a lever-lock bracket, a composite shaft. It is the transom motor on a thousand ramps. Confirm shaft length on the listing you click — 36 and 42 are different transoms. Check live prices.

Minn Kota Endura C2 55 Trolling Motor

Minn Kota Endura C2 55 Trolling Motor

Check price on Amazon

The Newport NV-Series 55 is the live salt-friendly tiller we named: 30-inch shaft, an LED battery meter, eight speeds, a 12-volt draw you still have to feed. Better when the water is brackish or you want a meter you can see. Rinse it. Check live prices.

Newport Vessels NV-Series 55lb Trolling Motor

Newport Vessels NV-Series 55lb Trolling Motor

Check price on Amazon

Shaft length is the transom, not a guess

The prop wants to stay wet when the boat is loaded and the chop is a chop. Too short: you suck air and the motor screams. Too long: you hit a stump and bend a shaft that was supposed to be indestructible until it was not. Measure from the transom top to the water, then add the manufacturer’s extra. A 16-foot jon with a high transom is often 42. A low inflatable mount is often 30. Read the current chart on the listing.

Bow-mount and a foot pedal are a fishing boat you already committed to. This page is the tiller on the back. GPS spot-lock is a different bill and a different wiring harness. Learn a tiller first. Navigation is still a map, not a remote.

Mount: the bracket that does not flex. Bolts that are lock-nutted. A safety cable. A motor that walks off a transom is a swim and a bill. Lock the boat when you leave it.

The battery is the motor

A car starter battery will do it once and then sulfate. A deep-cycle marine or a lithium built for trolling is the feed. Amp-hours: a 55-pound motor at speed 5 will eat a small battery before lunch. A 100-amp-hour class is a more honest day. A breaker. Lugs you crimped, not twisted. If it is dead, start here.

Charge on a charger that matches the chemistry. A lithium on a lead charger is a way to void a pack. Winter: store charged, not dead on a concrete floor. Battery life is the long page.

Solar trickle is a maybe on a sit. It will not run a 55-pound motor all day. Do not invent a panel that replaces a battery.

55 pounds, the right shaft, a deep-cycle you will charge

Endura C2 if the water is fresh. Newport NV if you want a meter and a rinse-after-brackish habit. Check live prices. A 9.9 gas kicker is a dealer when the lake is a crossing, not a troll.

The mount is the transom, not a clamp you hope

A tiller that is not through-bolted on a jon you actually use is a motor in the lake. Follow the maker’s holes. A backing plate if the transom is thin. An inflatable mount is a different bracket and a weight the tubes can take. The hull comes first. Thrust follows loaded weight. About two pounds per hundred pounds, then more for current or wind. A small jon is often a 55-pound 12-volt.

Shaft length: measure transom to water and add the maker’s extra. 36 or 42 on a jon. 30 on some inflatable mounts. Confirm the listing. A prop that ventilates is a shaft that is short. A prop that hits mud every dock is a shaft you can live with or a ramp you pick better. Motor types if you are still choosing electric versus a gas kicker.

Minn Kota Endura C2-class for most freshwater tillers. Newport NV-Series-class if the water is brackish and you want a meter. Rinse salt. Check live prices. We are not putting a 24-volt bow-mount cathedral on a first jon.

Salt is a rinse habit, not a sticker

Brackish and salt want a rinse at the ramp, not a hope. Tilt it. Flush the story the maker wrote. A crust is a crusty foot and a seized pin. Fresh water still wants a wipe. Skipping the rinse is a year-two bill.

Anodes if the maker fitted them. A missing anode in salt is a foot you replace. Store tilted down enough to drain, not as a cup of rain. Corrosion on a terminal is the same family of neglect. Dielectric on the posts. A cover on the plug.

Do not pretend a 55-pound 12-volt is a bay crossing. Wind sits a small hull. A gas kicker from a dealer is still the crossing motor. Electric is trolling and a small lake you can see the other side of.

Tiller, twist, and a foot you do not have yet

A tiller you can reach from the seat you actually sit in is the control. A handle that is a stretch is a back and a missed dock. Extension handles exist. Try before you buy a second one. Bow-mount and a foot pedal are a later deck and a later battery bank. Year one is a transom tiller you can steer with a rod in the other hand.

Speed clicks you will actually use. Five speeds that are a hop from too slow to too fast is a motor you will fight. A variable that you can hold in a breeze is kinder. Why a trolling motor is the long argument. This page is the size.

Kill the power at the truck. A battery you leave on is a dead battery at 5:30 a.m. A fuse that is the fuse they specified. A homemade jumper is a fire. A cooler strapped so a loose 40-quart is not a missile when you bump the dock.

A spare prop, a shear, and a wrench you can find

Weeds and a rock will take a blade. A spare prop and the hardware in a dry bag is year-one kit. Do not leave the only wrench at home. Practice the swap on the trailer. A motor you cannot get the pin out of at the ramp is a paddle home if you brought paddles. Bring paddles.

Paddle skills still get you to the dock. A motor is one layer. A PFD you wear is the other. A vest if you also ski. Kids: a vest that still fits in August.

Two batteries if the day is long and the hull is heavy. Parallel only the way the maker said. A car starter is a once. Then it fails. Deep-cycle marine or a trolling lithium and the charger that matches. Check live prices on the motor. The battery is a dealer or a shop you can carry a box from.

Rules on a motor are still rules

Some lakes cap thrust or ban gas and still want a registration on an electric. Read the lake page. A wake rule is a wake rule. A no-motor zone is a paddle. Manners at a ramp: be ready, do not hold the lane for a prop class.

Night: a lamp, a legal light if the hull needs one. A headlamp in the same pocket. A first electric sunset that becomes a no-light return is how people meet a barge. Be in when you said.

Guests: brief the tiller. A first-time friend who slams a 55-pound into a dock is a gelcoat story. You are the captain. They are the guest. The motor does not change that.

Winter is a charge and a dry foot

Charge the pack. Store it off a concrete slab if you can. A dead lead pack is a spring surprise. Lithium has a storage state the maker wrote. Read it. Tilt and drain the motor. A mouse nest in a cowling is a spring smell. Empty the granola in the boat.

Software on a GPS-spot-lock unit is a later motor. Update at the house, not at the ramp on one bar. Year one does not need spot-lock. Year one needs a prop in the water and a battery that starts the morning.

Closer: 55 pounds for most small jons, the shaft that keeps the prop wet, a deep-cycle you will charge, a mount you bolted, a rinse after salt, paddles in the hull. Check live prices. A car battery is a once. A crossing is still a gas kicker from a dealer.

A tiller you can reach from the seat you actually sit in is the control. A handle that is a stretch is a back and a missed dock. Bow-mount and a foot pedal are a later deck. Year one is a transom tiller and a rod in the other hand.

Size thrust to the loaded hull. Shaft that keeps the prop wet. Deep-cycle you will charge — not a car starter. Bolt the mount. A 55-pound 12-volt tiller is the usual first motor on a jon. Rinse salt. Kill the power at the truck. Spare prop and a wrench in a dry bag. Paddles in the hull. The hull comes first. Check live prices.

Do not pretend 55 pounds is a bay crossing. Wind sits a small hull. A gas kicker from a dealer is still the crossing motor. Read the lake page for thrust caps and no-motor zones. Night: a lamp and a legal light. Be in when you said. Winter: charge the pack, drain the foot, empty the granola in the cowling. Year one does not need spot-lock. Year one needs a prop in the water and a morning that starts.

Trolling is the job. Terminals get dielectric and a cover. Wear the PFD. Brief the guest on the tiller. You are the captain. Confirm shaft length on the listing. 36 or 42 on a jon. A prop that ventilates is a shaft that is short. Minn Kota Endura C2-class for fresh water. Newport-class if you want a meter and a rinse-after-salt habit.

Two batteries if the day is long — only the way the maker said. A homemade jumper is a fire. Skipping the rinse is a year-two bill. Store tilted enough to drain, not as a cup of rain. Anodes in salt. Paddle skills still get you home. A motor is one layer.

Also in the magazine

Keep going with boat motor types, why trolling motors, boat batteries, and first boats. Check live prices.

Frequently asked questions

How do I choose an electric boat motor?

Size thrust to the loaded hull, pick a shaft that keeps the prop wet, and feed it with a deep-cycle battery — not a car starter.

How much thrust do I need?

About two pounds per hundred pounds of loaded boat, then more for current or wind. A small jon is often a 55-pound 12-volt.

Minn Kota or Newport?

Endura C2 55 for most freshwater tillers. Newport NV-Series 55 if the water is brackish and you want a battery meter. Rinse salt.

What shaft length?

Measure transom to water and add the maker’s extra. 36 or 42 on a jon. 30 on some inflatable mounts. Confirm the listing.

Can I use a car battery?

Once. Then it fails. Use a deep-cycle marine or a trolling lithium and the right charger.

Is this a replacement for a gas outboard?

For trolling and a small hull, often yes. For a crossing or a heavy skiff, a gas kicker from a dealer is still the crossing motor.