Marine Batteries Shipped to Key West, FL
Key West sits at the end of the Overseas Highway, with the Gulf backcountry on one side and the Atlantic reef line on the other. Boats here run in open water more often than almost anywhere in Florida.
We don’t have a shop in Key West. Marine Battery Source is an online store, and we ship to Key West and the rest of Florida. Lithium batteries over $150 ship free by curbside truck freight to the lower 48. Chargers and accessories ship free when your cart reaches $150. Lead-acid and AGM batteries ship free by curbside truck freight too.
The water around Key West
Garrison Bight is home to many of the island’s charter boats and has public ramps nearby, and Key West Harbor and the Historic Seaport host larger yachts and sailboats. To the west are the Marquesas Keys and, much further, the Dry Tortugas. The backcountry flats north of the island are a maze of mangrove keys and channels.
Recommended setups
Twin-engine and offshore boats
Offshore boats depend on their batteries more than any other boat on Key West Harbor: 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.
Flats skiffs and bay boats
For a skiff or bay boat that spends the day poling and creeping along the flats near Garrison Bight, trolling motor capacity is the number that matters. Measure your current batteries (group size, voltage and how many) before you order. If you stay with lead-acid, Group 31 deep-cycle batteries give the most runtime per battery; if you move to lithium, one 36V battery wired for your motor makes the system simpler and lighter.
Sailboats
Many sailboat owners around Garrison Bight stay with AGM or flooded batteries for simplicity and cost. Whichever you choose, keep the house bank and starting battery separate, and replace all batteries in a bank at the same time.
What people run and fish for in Key West
Offshore crews fish the reef and the edge for mahi, sailfish, tuna and snapper, while flats guides pole skiffs for bonefish, permit and tarpon. Sailboats and liveaboards anchor off the island and depend on solar and house banks.
Climate, storage and winterizing in Key West
Boats that run to the reef and back take a pounding. Secure batteries firmly in their trays and favor AGM or lithium, which resist vibration.
Hurricane prep is part of owning a boat in the Keys. Before a storm, charge everything fully and switch the batteries off, or pull small lithium batteries and store them indoors. A boat on a lift with a dead battery can’t run its bilge pump.
The Keys are hot, humid and salty all year, and a battery in a closed console can sit well above 100°F in summer. Sealed AGM or lithium batteries handle that better than flooded ones, and they won’t spill on a hard run across Hawk Channel. Rinse and coat terminals after every trip.
Getting your battery to Key West
- Free lithium freight: lithium batteries over $150 ship free, curbside, to the lower 48.
- Parts and chargers: free shipping when your cart subtotal is $150 or more.
- Lead-acid and AGM: free curbside truck freight to the lower 48, the same as lithium.
- Scheduling: the carrier calls the delivery phone number you give at checkout to set a delivery window. An adult needs to be there to inspect and sign.
Popular picks
All in stock now. Prices and stock update live on each product page.
- Interstate 31M-AGM 12V Group 31M AGM Dual Purpose Marine Battery – 925 CCA (12V 100Ah AGM, 925 CCA, Group 31M footprint)
- EPOCH 36V 50Ah Essential Series LiFePO4 Battery (1.92kWh) (36V 50Ah LiFePO4, Group 31 footprint, 35 lb, internal heating for cold charging)
- EPOCH 12V 300Ah Essential Series LiFePO4 Battery (3.84kWh) (12V 300Ah LiFePO4, Group 31 footprint, 58 lb, internal heating for cold charging)
- Interstate 27M-AGM 12V Group 27M AGM Dual Purpose Marine Battery – 850 CCA (12V 85Ah AGM, 850 CCA, Group 27M footprint)
- Interstate LI31M36V50 36V 50Ah Group 31M Lithium Marine Battery (36V 50Ah LiFePO4, Group 31M footprint)
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Interstate
Interstate 31M-AGM 12V Group 31M AGM Dual Purpose Marine Battery – 925 CCA
$459.95or 4 interest-free payments of $114.99
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EPOCH
EPOCH 36V 50Ah Essential Series LiFePO4 Battery (1.92kWh)
$749.00or 4 interest-free payments of $187.25
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EPOCH
EPOCH 12V 300Ah Essential Series LiFePO4 Battery (3.84kWh)
$1,249.00or 4 interest-free payments of $312.25
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Interstate
Interstate 27M-AGM 12V Group 27M AGM Dual Purpose Marine Battery – 850 CCA
$414.95or 4 interest-free payments of $103.74
FAQ
How long does freight to Key West take?
Transit times depend on the carrier and your exact address, and the Keys can take longer than the mainland. The carrier calls you to schedule the delivery window.
Is lithium shipping really free to Key West?
Yes. Lithium batteries over $150 ship free by curbside truck freight to addresses in the lower 48 states, including Key West.
Do chargers and accessories ship free?
Chargers, accessories and lithium batteries of $150 or less ship free when your cart subtotal is $150 or more. Otherwise a flat shipping rate applies, shown at checkout.
Do you have a store or installer in Key West?
No. We ship to Key West from our store. Professional installation is a flat $99 per battery ($249 for a 24V or 36V lithium bank) anywhere from Venice to Gainesville, with no travel charge.
Other Florida shipping locations
See every Florida location on our Florida shipping page, browse all shipping locations, or shop lithium, trolling motor, cranking and charger categories. Full terms are on our shipping policy.