How long will a trolling motor battery last? Are you asking about a specific day or over the life of a battery? Here are the factors that can impact both:. Here are the factors that can impact both: How do you use the battery?
If you use a trolling motor battery in windy conditions or bodies of water with strong currents, you'll probably use it more and it may not last as long as a battery used in calm water. How big is the battery? Generally speaking, the larger a battery is physically, the more energy it can hold. If we are using a 24V system that draws 1, watts with two 50Ah batteries in series Ah total , we would use the following equation:. It should be noted that these are only estimates and they do not factor in weight, wind or water resistance or other external factors.
While only estimates, these can be very helpful in deciding on the right battery or motor for your application. Below is a chart showing the max amp draw Newport Vessels trolling motors for your reference. Calculating battery life is easy with two pieces of information: the battery amp hour rating, and the amount of amps a motor uses.
Motors draw different amounts of current from the battery depending on the motor size and speed it is turning. With this information, just divide the amp hour rating on your battery by the amp draw of your motor. This will give you an estimated battery life for your trolling motor. Submit Search. Close search. Your Cart. Your cart is currently empty.
Newport Vessels Hoorag Sun Scarf. Kayak Motor - NKS. Checkout Continue shopping. Charge them after every trip. If it sits for longer than a week, charge them again. Your batteries should be charging everytime you run the boat. Although it's not an established fact, it seems that the currently available trolling motors draw more power than today's solar panels are able to put out constantly.
In order to use solar power on a trolling motor without a battery, you 'll have to mount several high-end panels on your boat. Multi-stage Battery Charging Over time, these deposits will cause a amp-hour battery to act more like a amp-hour battery , and battery life will be considerably shortened. Once fully charged , marine batteries should be held at a considerably lower voltage to maintain their charge - typically Overcharging Deep Cycle Batteries : As a result of too high a charge voltage excessive current will flow into the battery , after reaching full charge, causing decomposition of water in the electrolyte and premature aging.
At high rates of overcharge a battery will progressively heat up. Repeat ever couple of hours or when you notice a power drop. If one battery drops more than the others, that one is probably bad.
If the batteries are being charged fully, start the day at the same voltage and discharge equally, then they are probably all worn out. Deep-cycle batteries are designed for discharging smaller amounts of current over a longer period of time and for more frequent recharging.
For best results, use a deep cycle, marine battery with at least a ampere hour rating. The standard shaft length is 42". To determine the right length for your boat, measure the distance from where the shaft is mounted on the deck or the transom to the water.
Then add 16" for MotorGuide or 20" for Minn Kota and select the next closest measurement. Because of the larger windings in the 50 lb thrust model, lower speeds use less amperage for the same thrust.
The key is to use the watts you know to calculate the amps at the battery voltage. For example, say you want to run a watt VAC light bulb from an inverter for 5 hours. Connect the volt trolling motors to a single volt battery by simply fastening the black negative lead from the motor to the negative battery terminal, and the red positive lead from the trolling motor to the positive battery terminal.
Include a amp circuit breaker on the positive connection.
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