Cluster · No. 01

Sea.

We cover gear for the people running boats, liveaboards, weekend cruisers, anyone whose office sometimes has a wake. We pick carefully, we rank, and we name the things worth skipping.

Cornerstone Guide

Boat Gear: The Complete Guide.

The whole-boat picture, in one place. Every system on a 20 to 45 ft coastal boat, organized by what to buy first, with what the law requires and the one guide we trust for each.

Read the cornerstone

01

Navigation

2 guides total

All Sea Navigation → 2

Top Pick Updated May 2026

Best Marine GPS Chartplotters: The 5 We'd Buy in 2026

Five chartplotters for a 25 to 40 ft coastal helm, ranked by owner review signal.

Garmin GPSMAP 743xsv · $1,299 →

Garmin GPSMAP 743xsv

Updated May 2026

Get Seen: 3 AIS Transponders We'd Run in 2026

Three Class B SOTDMA transponders so commercial traffic sees you, not just the other way around. Ranked by owner review signal.

em-trak B951 · $724 →

Read → All Sea Navigation →

02

Safety

2 guides total

All Sea Safety → 2

Top Pick Updated May 2026

Best Inflatable Life Jackets: 5 We Trust on Deck (2026)

Three auto-inflate vests, one manual belt pack, one hydrostatic offshore work vest. Ranked by Amazon owner review signal across 6,842 reviews.

Onyx A/M-24 · $122 →

Updated May 2026

The Beacon That Brings Help: 5 EPIRBs & PLBs (2026)

Your boat needs an EPIRB, your crew needs a PLB. Five 406 MHz Cospas-Sarsat distress beacons from ACR and Ocean Signal, and why a satellite messenger is not one.

ACR GlobalFix V5 AIS · $920 →

ACR GlobalFix V5 AIS

Read → All Sea Safety →

03

Electrical

6 guides total

All Sea Electrical → 6

Top Pick Updated May 2026

Best Marine Batteries: The 5 We'd Wire In for 2026

Five batteries for a 25 to 40 ft coastal cruiser, sorted by chemistry, use case, and honest answers on the lithium upgrade question. The single most-important honesty point: the 'drop-in replacement' marketing line is true on the bench and optimistic on the boat.

Optima D34M BlueTop AGM · $340 →

Optima D34M BlueTop AGM

Updated May 2026

Keep the Bank Topped Up: 5 Marine Chargers (2026)

Five chargers for a 25 to 40 ft coastal cruiser doing a refit, sorted by what working marine electricians actually install. The single most-important honesty point: the 'lithium-compatible' label means the charger lowered absorption voltage to 14.4V, NOT that it shortened absorption duration. Only one consumer-tier shore charger exposes that parameter via app.

Victron Blue Smart IP67 Marine 25A · $157 →

Victron Blue Smart IP67 Marine 25A

Updated May 2026

Best Marine Solar Panels: 5 That Earn Their Deck Space (2026)

Five marine solar panels for a 25 to 45 ft coastal cruising sailboat or trawler owner sizing a 12V house bank for off-grid anchoring, sorted by install context and panel topology. The single most-important honesty point: the Renogy flexible product line is a HARD NO due to the CPSC recall of the RNG-100DB for overheating plus documented bimini fire incidents. The Renogy rigid line is fine; the BougeRV Yuma CIGS is the Practical Sailor-tested shade champion; the MC4 connector is the documented first-failure point on saltwater installs.

Renogy 200W N-Type Rigid Solar Panel · $179.99 →

Renogy 200W N-Type Rigid Solar Panel

Updated May 2026

Get Every Watt: 5 Marine MPPT Controllers (2026)

Five MPPT solar charge controllers for a 25 to 45 ft coastal cruiser sizing a 12V house bank, sorted by array size and radio-gear sensitivity. The single most-important honesty point: the Victron SmartSolar 75/15 (the platform's 5,392-review volume-king Victron) is disqualified from Top Pick status on any AIS-equipped boat due to documented current-dependent RFI degrading AIS reception above 7A bulk charge; the 100/30 is the corrected Victron. Footprint Hero's bench test puts Victron, EPEVER, and Renogy within 4W of each other at peak harvest; you are buying the ecosystem, NOT raw watts.

Victron SmartSolar MPPT 100/30 · $237.99 →

Victron SmartSolar MPPT 100/30

Updated May 2026

Best Marine Inverters: The 5 We'd Buy in 2026

Five pure-sine inverters and combo inverter-chargers for the 25 to 45 ft coastal cruiser adding AC loads (refrigeration, microwave, induction cooktop, laptop) to a 12V house bank, sorted by install context and AC load profile. The single most-important honesty point: the Magnum-or-nothing offshore gospel no longer holds while DMX Power LLC rebuilds the parts supply chain after acquiring Magnum from Sensata in April 2025; the Victron MultiPlus Compact 12/2000 is the corrected default. Case material (aluminum on the Compact, steel on the MultiPlus-II) is the load-bearing editorial discriminator over Amazon review-count math.

Victron MultiPlus Compact 12/2000/80-50 · $797.56 →

Victron MultiPlus Compact 12/2000/80-50

Updated May 2026

Know Your Real State of Charge: 3 Battery Monitors (2026)

Three shunt-based coulomb-counting battery monitors for the 25 to 45 ft coastal cruiser running a house bank on AGM, flooded, or LiFePO4 chemistry. The single most-important honesty point: the BMV-712 stays the cruiser default in 2026 not because it is the most accurate monitor on the market but because its Bluetooth antenna lives in the panel where it actually works (the SmartShunt's radio sits at the shunt buried in the bilge with seawater alongside the hull, which Victron's own datasheet acknowledges may reduce range to an unacceptable level). The Renogy Battery Shunt 300 is editorially refuted at the Budget Pick slot on three independent failure modes; the wired-display AiLi at $37.80 is the corrected answer.

Victron BMV-712 Smart Battery Monitor · $200 →

Victron BMV-712 Smart Battery Monitor

Read → All Sea Electrical →

04

Anchoring

3 guides total

All Sea Anchoring → 3

Top Pick Updated May 2026

Best Marine Anchors: 5 That Actually Hold (2026)

Five primary anchors for a 25 to 32 ft coastal cruiser, picked by design family and substrate fit. The single most-important honesty point: manufacturer size charts are widely considered optimistic by owners who actually anchor overnight.

Mantus M1 Anchor Galvanized 17 lb · $311 →

Mantus M1 Anchor Galvanized 17 lb

Updated May 2026

Raise Anchor Without the Backache: 5 Windlasses (2026)

Five anchor windlasses for a 25 to 35 ft coastal cruising sailboat or sportfish powerboat, sorted by foredeck geometry, chain spec, and Amazon-buyable reality. Five honesty points organize the guide including the actual current draw (45 amps normal on the V700, NOT the 30 amps the marine industry repeats), the Pro Sport 550's deploy-only Manual Freefall (no independent manual retrieve), and the Powerwinch / Trac category error (those are trailer winches, not windlasses).

Lewmar V700 12V Vertical Windlass · $1,043 →

Lewmar V700 12V Vertical Windlass

Updated May 2026

Best Marine Anchor Chain: The 5 We'd Buy in 2026

Five anchor chains for a 25 to 35 ft coastal cruiser, sorted by chain size, grade, and Amazon distribution reality. The single most-important honesty point: the named brands of record (ACCO, Peerless, Campbell, Maggi, Suncor 316L) are not sold as bulk chain on Amazon. The Amazon lineup is regional galvanizers and private-label marine brands, with ACCO via Defender priced 22 percent below the per-foot Amazon listing.

MarineNow ISO G43 1/4" Anchor Chain · $40.49 entry →

MarineNow ISO G43 1/4" Anchor Chain

Read → All Sea Anchoring →

05

Docking

1 guide

All Sea Docking → 1

Top Pick Updated June 2026

Protect the Hull: 5 Boat Fenders We'd Buy in 2026

Five boat fenders for a 20 to 45 ft coastal boat plus pontoons, picked by job rather than brand. The single most-important honesty point: most owners buy a size too small, and the size-to-boat rule (one inch of diameter per four to five feet, one fender per ten feet of waterline, minimum three a side) protects the hull more than any brand choice.

Polyform HTM-Series · $66 →

Polyform HTM-Series

Read → All Sea Docking →

06

Communications

4 guides total

All Sea Communications → 4

Updated May 2026

Best Marine VHF Radios: The 5 We'd Mount in 2026

Three fixed-mount and two handheld VHF radios for a 25 to 40 ft coastal helm, ranked by owner review signal.

Uniden UM385BK · $149 →

Updated June 2026

A Radio in Your Pocket: 5 Handheld VHFs (2026)

Five floating handheld VHF radios for a 20 to 45 ft coastal boat, ranked as the backup to the fixed helm set, with GPS and DSC where it matters.

Standard Horizon HX891 BT · $260 →

Standard Horizon HX891 BT

Updated May 2026

Best Satellite Communicators: 5 We'd Carry Offshore (2026)

Five handheld satellite messengers for a 25 to 45 ft cruising boat, ranked for offshore use, with Iridium global coverage favored over Globalstar.

Garmin inReach Mini 3 Plus · $450 →

Garmin inReach Mini 3 Plus

Top Pick Updated June 2026

Starlink for Boats: The Internet Setup We'd Run in 2026

Starlink Mini, a cellular failover router, and a marina WiFi extender, ranked for cruisers and liveaboards who work remotely aboard.

Starlink Mini · $249 →

Read → All Sea Communications →

07

Plumbing

1 guide

All Sea Plumbing → 1

Top Pick Updated May 2026

Best Bilge Pumps: The 5 We'd Trust to Keep You Dry (2026)

Five automatic bilge pumps for an 18 to 32 ft outboard or inboard, sorted by review-count signal and editorial honesty on GPH ratings. The single most-important honesty point: manufacturer GPH ratings are tested at 0 ft head and the real-world output at 3 to 4 ft head is roughly half.

SEAFLO 06 Series 1100 GPH Automatic · $28 →

SEAFLO 06 Series 1100 GPH Automatic

Read → All Sea Plumbing →

08

Maintenance

2 guides total

All Sea Maintenance → 2

Top Pick Updated May 2026

Seal It Once: 5 Marine Sealants We'd Buy in 2026

Five marine sealants ranked by which job they fit, not which is strongest. The 5200-vs-4200 question, answered by 3M's own application guidance.

3M 4200 Fast Cure · $33 →

3M 4200 Fast Cure

Updated May 2026

Best Boat Cleaners: The 5 That Actually Work (2026)

Five boat cleaners picked for the right job, not the strongest formula. The can-I-just-use-Dawn question, answered by what your wax layer is actually doing.

Star brite Concentrated Boat Wash · $9 →

Star brite Concentrated Boat Wash

Read → All Sea Maintenance →

Free tools

Run the numbers first.

All free tools →

Boat Safety Gear Requirements Checker

Enter your boat's length and a few details, and see the gear the US Coast Guard generally requires you to carry, plus the gotchas owners trip on.

Open the checker → Calculator

Sailboat Battery Bank & Solar Calculator

Turn your onboard loads into the house-bank size, solar array, and charge-controller numbers you actually need.

Open the calculator → Calculator

Anchor Size & Scope Calculator

Size the anchor for your boat, then get the scope and rode to deploy for the conditions you're anchoring in.

Open the calculator → Calculator

Boat Fender & Dock-Line Size Calculator

One boat length gives you the fender diameter and count, plus the dock-line diameter and the length to cut your bow, stern, and spring lines.

Open the calculator → Calculator

Marine DC Wire-Gauge Calculator

Enter your load, run length, and voltage for the AWG that satisfies both voltage drop and ampacity, the ABYC way, plus the fuse to match.

Open the calculator →

How we pick

We don't run a lab. We read deeply, weigh the consistent problem over the loudest complaint, and rank for your situation, not best overall. We don't take vendor decks or sponsored placements, and the commission never sets the order.

Our methodology →

The Dispatch

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