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Mobile Marine Battery Replacement in Longboat Key, FL

Illustrated waterfront banner for Manatee County, Florida

Longboat Key is a long, narrow barrier island between Longboat Pass and New Pass, split between Manatee and Sarasota counties. Much of it is lined with docks on the bay side.

We install batteries in Longboat Key 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.

You can shop lithium, AGM and lead-acid or house bank batteries online and add installation on the product page.

Longboat Key waterways, ramps and marinas

Longboat Pass at the north end and New Pass at the south end give quick Gulf access, and Sarasota Bay runs along the whole east side of the island. Marinas on the island, including the Longboat Key Moorings, host larger cruising boats and sportfishing boats.

Fishing and boats in Longboat Key

Snook along the beaches, tarpon in the passes in summer and trout on the bay flats. The island’s marinas also hold motor yachts and sailboats whose house banks and generators need serious battery capacity.

Heat, salt and battery care in Longboat Key

Larger cruising boats on Longboat Key often have big house banks of 6V golf cart batteries, 8D AGMs or lithium. If you’re upgrading, we can help you match capacity to your inverter and charger.

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.

Florida’s Gulf coast is hard on batteries for two reasons: heat and salt. Battery life drops quickly when a lead-acid battery sits above 90°F, and salt air corrodes terminals and cables. Sealed AGM and lithium batteries resist both better than flooded batteries, and none of them need water topping.

Recommended battery setups

Twin-engine and offshore boats

Offshore boats depend on their batteries more than any other boat on Sarasota Bay: radar, sonar, chartplotters, livewells and VHF all draw power while drifting over a ledge. Size your house battery for a full day of electronics with the engines off, and keep it isolated from the cranking batteries with a switch or combiner. A multi-bank onboard charger keeps every battery topped up at the dock.

Sailboats and cruising boats

Sailboats and cruisers in Longboat Key rely on a house bank for lights, refrigeration, instruments and an autopilot, plus a starting battery for the auxiliary engine. A bank of 6V golf-cart batteries wired in series is a traditional choice; lithium banks like the EPOCH 12V 300Ah or Battle Born 100Ah give more usable capacity and recharge faster from solar or the engine.

Houseboats and cruisers

Many cruising boats around Longboat Pass are upgrading to lithium for faster charging and more usable capacity. Check your charging system first.

Ordering and scheduling

  1. Text us at (954) 743-0000 or order online. A photo of your current battery label and battery compartment helps us confirm the right size.
  2. Add installation on the product page; it’s available for ZIP codes in our installation area, including 34228.
  3. We’ll reach out to schedule the installation at a time that works for you. Installation is a flat $99 per battery ($249 for a 24V or 36V lithium bank); add it on the product page when you order.
  4. We install at your dock, ramp or driveway and take the old batteries with us, so there’s no core charge.

In-stock batteries for Longboat Key boats

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

Longboat Key marine battery FAQ

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.

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.

Can you install lithium batteries?

Yes, we install lithium (LiFePO4), AGM and flooded batteries for a flat $99 per battery ($249 for a 24V or 36V lithium bank). Add it on the product page when you order, or text us at (954) 743-0000 with questions. If you’re switching to lithium, check that your charger has a lithium profile; we sell chargers that do.

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.

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).

Nearby service areas

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).

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