lithium trolling motor batteries
Introduction
Conventional marine batteries lose voltage as they are drained, which causes a trolling motor to gradually lose thrust. Once the batteries are drawn down to 50 percent they can no longer produce the voltage needed to power the motor. They still have 50 percent of their capacity, but as far as your trolling motor is concerned, they’re dead.
And, when a conventional marine battery is drained to 50 percent or below, it will never return to its full capacity, no matter how long it is charged.
Lithium batteries, on the other hand, do not lose voltage as they are drawn down. And, they may be drained to nearly 100 percent before the voltage drops. This is why they can provide power twice as long and keep your trolling motor running at full strength throughout that time.
Also, a discharged lithium battery suffers no harm and can be recharged to its full strength. And, a lithium battery may be discharged and charged five or more times than conventional marine deep cycle batteries. Add to this that lithium batteries weigh about half that of conventional deep cycle marine batteries and that they charge in a fraction of the time.
Advantage
Bluetooth Battery Monitoring - Torphan Lithium batteries are equipped with Bluetooth for monitoring battery State of Charge (SoC) through a Smartphone or tablet app. This is important because unlike lead acid batteries, LiFePO4 batteries maintain a constant voltage between 13 and 13.4 volts so a voltmeter is not an accurate indicator of SoC. A built in Bluetooth capability enables real time monitoring of each battery through an app on either an Android or IOS smartphone or tablet. The app displays the state of charge (SoC) of the battery, the amp draw and voltage level, the temperature, the time to full charge and the number of charge/discharge cycles. This capability is nearly equivalent to having a built in battery bank monitoring system like a Link 2000. Have confidence that you have plenty of power and know exactly when you'll need to run your engine. Terrific feature for fishermen using a single battery for both a trolling motor and engine starting battery.
Winter Operation and Storage - Torphan LiFePO4 Lithium deep cycle batteries can be stored in temperatures from -10°F to +104°F (-25°C to +40°C). It is recommended they not be heavily charged and discharged at temperatures below -4°F (-20°C) . It is recommended that the negative terminals be disconnected during winter or long term storage so there is no chance of draining the batteries while in storage. LiFePO4 lithium batteries should be recharged at a minimum every 6 months while in storage.
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