Mobile Marine Battery Replacement in Cortez, FL

Cortez is one of the last working fishing villages on Florida’s Gulf coast, with fish houses and commercial boats still tied up along the waterfront.

We install batteries in Cortez at your dock, the ramp or your driveway. Order online or text us. Installation is a flat $99 per battery ($249 for a 24V or 36V lithium bank); add it on the product page when you order. On lead-acid and AGM batteries, the $18 core charge is waived when you book installation and we take your old battery with us.

Start with our trolling motor, dual-purpose or cranking categories, or text us and we’ll help you choose.

Boating around Cortez

The village faces Sarasota Bay just south of the Cortez Bridge, with the Florida Maritime Museum in the old schoolhouse. Across the bay are Jewfish Key and the south end of Anna Maria Island, and Longboat Pass is a short run to the south.

The Cortez waterfront is a working harbor, so fishing boats and fish houses share the water with recreational boats. It’s also close to the Cortez Bridge and Anna Maria Island.

Boats and fishing on Sarasota Bay

Commercial and recreational fishing share the water here. The bay flats hold trout and redfish, and the passes hold snook. Small bay boats, skiffs and kayaks work the grass, and some locals run center consoles offshore.

Which batteries fit Cortez boats

Flats skiffs and bay boats

In Cortez, a typical inshore setup is a cranking battery for the outboard, two or three deep-cycle batteries for a 24V or 36V trolling motor, and an onboard charger to bring them all back overnight. Lithium is the popular upgrade because it holds full thrust until it is nearly empty and recharges quickly, but a good AGM deep-cycle battery is still a solid, lower-cost choice.

Twin-engine and offshore boats

Center consoles that run offshore from Cortez usually have one cranking battery per engine plus a house battery for electronics, pumps and lights. For cranking, a Group 27 or 31 AGM with high marine cranking amps is the common choice. A lithium dual-purpose battery like the EPOCH 172Ah can serve as a house battery and an emergency start, and it weighs a fraction of an equivalent AGM.

Kayaks, canoes and jon boats

Small boats and jon boats around Cortez often run a small trolling motor and a fish finder. A 12V 50Ah or 100Ah lithium battery saves weight and keeps the trolling motor strong all day.

Heat, salt and battery care in Cortez

Working boats and weekend boats alike get rinsed less often than they should. A clean, dry battery box makes any battery last longer.

There is no real off-season here, so batteries work year round. The bigger risk is heat: a battery in a closed hull or a sunny driveway in July ages much faster than one kept cool. Charge after every trip, keep terminals clean and coated, and turn off the battery switch when the boat sits.

Island boats live in salt air and benefit from sealed batteries. River boats in brackish water still need clean, coated terminals. Marina boats on shore power should have a charger matched to their battery type.

How it works

1. Pick your battery online, or text us at (954) 743-0000 with your boat, motor and current battery size and we’ll help you choose.
2. Add installation on the product page and enter your Cortez ZIP code to confirm it’s in our installation area.
3. We contact you to set a time and confirm where the boat is: dock, ramp or driveway. If you want installation, add it on the product page for a flat $99 per battery ($249 for a 24V or 36V lithium bank).
4. Our installer fits the battery and takes your old lead-acid batteries, which waives the $18 core charge.

Products to start with

These are in stock now. Prices and stock update live on each product page.

• EPOCH 36V 50Ah Essential Series LiFePO4 Battery (1.92kWh) (36V 50Ah LiFePO4, Group 31 footprint, 35 lb, internal heating for cold charging)
• Interstate 31M-AGM 12V Group 31M AGM Dual Purpose Marine Battery – 925 CCA (12V 100Ah AGM, 925 CCA, Group 31M footprint)
• Battle Born 30Ah 12V LiFePO4 Deep Cycle Battery – Base Series (12V 30Ah LiFePO4, 48.6 lb)
• Interstate LI31M36V50 36V 50Ah Group 31M Lithium Marine Battery (36V 50Ah LiFePO4, Group 31M footprint)
• Interstate 27M-AGM 12V Group 27M AGM Dual Purpose Marine Battery – 850 CCA (12V 85Ah AGM, 850 CCA, Group 27M footprint)

Questions we get from Cortez boaters

How much is installation?

Installation is a flat $99 per battery ($249 for a 24V or 36V lithium bank), and you can add it on the product page when you order. Questions about your boat’s setup? Text us at (954) 743-0000.

How do I set up a time?

Text us at (954) 743-0000. Tell us your ZIP code, the boat and where it is, and we’ll set up a time with you. To book installation, add it on the product page for a flat $99 per battery ($249 for a 24V or 36V lithium bank).

Do you install batteries in Cortez?

Yes. Cortez is inside our installation area, which runs from Venice to Gainesville, FL. Installation is a flat $99 per battery ($249 for a 24V or 36V lithium bank), added when you order on the product page.

What should I have ready?

Make sure we can reach the battery compartment and that the boat is accessible at the dock, ramp or driveway. A photo of the current battery label helps us bring the right size.

Is there a core charge on lead-acid batteries?

Lead-acid and AGM batteries carry an $18 core charge per battery. It is waived when you book installation and we take your old battery.

We also deliver nearby

• Bradenton Beach, FL
• Bradenton, FL
• Holmes Beach, FL
• Longboat Key, FL

See all towns in Manatee County, or the full Florida mobile service area. Details on shipping and freight are on our shipping page, and our local install page explains how installation works (a flat $99 per battery, $249 for a 24V or 36V lithium bank).

Battery guides

• Florida Heat and Marine Battery Life: How to Make Batteries Last
• Saltwater Corrosion Prevention for Marine Batteries and Connections
• How to Choose a Trolling Motor Battery by Thrust and Voltage
• Lithium Marine Batteries: The Complete Buyer’s Guide