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Marine & Boating · Weight-Sensitive Platform
Marine & Boating Batteries: 12V, 24V and 36V LiFePO4
Marine and boating is where battery weight is a performance spec, not a logistics detail: lithium is 50–70% lighter than lead-acid, and converting a three-battery trolling rig takes 100–125 lbs out of the bow. The marine battery market is climbing from $882M in 2024 toward $1.5B by 2030, with the lithium sub-segment roughly tripling by 2032. EMS-ESS supplies boat builders and dealer networks with sealed 12/24/36V LiFePO4 — Bluetooth state-of-charge standard, salt-spray-tested enclosures, and a 36V one-battery platform that replaces three 12V lead-acid units outright.
Boat-Builder Math
Weight, Space and Winter Storage Drive the Switch
On a boat, every pound in the battery bay trades against payload, draft and running attitude — a 100Ah lithium at 30–35 lbs against 60–70 lbs for lead-acid is felt at the helm, and a three-battery trolling conversion removes 100–125 lbs from the bow alone. Space is the second win: one 36V battery replaces three 12V cases and their cabling. Then there is the unattended season: boats sit for months, and owners want to check state-of-charge from the dock without opening a hatch.
- Weight and balance — 50–70% lighter chemistry; rig-level conversions measured at 100–125 lbs saved on trolling setups alone.
- Remote monitoring — Bluetooth SOC and SOH in every unit, because winter-storage checks happen from a phone, not a multimeter.
- Corrosion discipline — IP65 housings standard with IP67 options, salt-spray tested, brass terminals spec'd for the marine environment.
- Trolling platforms — 36V 60/100Ah one-battery systems matched to 50–60A motor draw, replacing three 12V lead-acid and their series wiring.
Marine Program
12/24/36V Marine Specification
Three platforms cover house banks, dual-purpose service and dedicated trolling power. Dual-purpose variants pair cranking-assist current with deep-cycle chemistry; dealer programs can mix platforms on one shipment with shared firmware support.
| Parameter | Specification |
|---|---|
| Platforms | 12.8V (4S) · 25.6V (8S) · 38.4V (12S trolling) |
| Capacity options | 12V 100/200Ah · 24V 100Ah · 36V 60/100Ah |
| Trolling systems | single 36V battery replaces three 12V lead-acid |
| Weight | ~30–35 lbs per 100Ah vs 60–70 lbs lead-acid |
| Rig-level savings | 100–125 lbs on a three-battery trolling setup |
| Cycle life | 4,000+ cycles |
| BMS | 100–200A with Bluetooth SOC / SOH monitoring |
| Discharge match | 50–60A continuous trolling motor draw |
| Protection | IP65 standard · IP67 options · salt-spray tested |
| Variants | dual-purpose starting + deep-cycle |
| Certifications | UN 38.3 · CE |
| Warranty | 5-year |
Dealer and builder sampling runs 15–20 working days; dealer display racks, parallel lead-acid/lithium SKU listings and co-branded packaging are all standard program options at container volumes.
Program in Production
From the Field
"36V trolling plus 12V house kits for our bass boat line — 118 lbs came out of the rig, the single-battery bow install cleaned up our wiring harness, and Bluetooth SOC went from option to standard because dealers stopped ordering without it."
Get a Factory Quote in 24h
Send your spec — voltage, capacity, application, annual volume. A battery engineer replies with a costed proposal.
