Batteries & Chargers

Choosing a battery for fishing

Whether you are powering a fish finder, an electric motor or bivvy lighting, a reliable battery is essential to get the most from your fishing trips. In this category, you will find batteries and chargers suited to the demands of freshwater and saltwater fishing, providing stable power all day long.

Lead-acid, AGM or lithium: which type of battery?

Standard lead-acid batteries remain an economical option for occasional use. AGM models, which are sealed and maintenance-free, cope better with deep discharges and are ideal for electric motors or long drifts in a boat.

Lithium batteries stand out for their reduced weight, excellent lifespan and stable power right up to the end of the discharge. They are especially appreciated for fish finders, bow motors or mobile fishing where every pound matters. Choose the capacity (Ah) according to the power draw of your devices and the average duration of your outings.

Correctly charging and maintaining your battery

A suitable charger significantly extends the life of your battery. Choose a smart charger that can adjust the charging curve to the type of battery (lead-acid, AGM, gel, lithium) and automatically switch to maintenance mode.

After each trip, fully recharge the battery and avoid discharges that are too deep, especially in winter. Store it in a dry place, protected from frost and excessive heat. Good charge management ensures consistent performance season after season.

Typical uses when fishing

12V batteries are used to power a wide range of equipment:

• Powering fish finders and GPS units for clear bottom readings
• Supplying power to bow or transom electric motors
• Night lighting: headlamps, bivvy lights, spot marking
• Recharging small devices: phones, action cameras, USB accessories

Match your choice of battery and charger to your style of fishing: static night fishing, mobile predator fishing, long boat sessions or short after-work trips.

FAQ Batteries & Chargers

What battery capacity should I choose for a fish finder? For a standard fish finder drawing about 0.8 to 1 A, a 10 to 15 Ah battery is enough for a full day. For larger screens or fish finder/GPS combos, go for 18 to 23 Ah or more.

What is the difference between a standard charger and a smart charger? A standard charger delivers a constant current and can overcharge the battery. A smart charger adjusts the voltage according to the different charging stages, then switches to a maintenance mode, which protects the battery and reduces risks.

Can the same battery be used for an electric motor and a fish finder? It is possible, but it is often better to power the fish finder from a separate battery to avoid interference and voltage drops when you accelerate with the motor.