51.2V 100Ah Marine LiFePO4 Battery 5120Wh 48V Electric Outboard Bluetooth IP54 M8

51.2V 100Ah Marine LiFePO4 Battery 5120Wh 48V Electric Outboard Bluetooth IP54 M8

Electric outboards and hybrid drives ask for a 48V pack that stays light and talks to the helm. This 51.2V 100Ah marine LiFePO4 battery answers with 5120Wh at 48V nominal, a Bluetooth BMS that reports every cell, and an IP54 case designed for the transom well. Sixteen series cells deliver the voltage directly, so the drive runs at full efficiency with no conversion loss.

Specifications

Core Specifications

This marine battery offers 51.2V nominal and a 100Ah capacity, totalling 5120Wh. Internal resistance is 30 milliohms or lower, efficiency is 98 percent and self discharge is under 5 percent per month. Cycle life exceeds 4000 cycles at 1C and 80 percent depth of discharge with 80 percent capacity retention. The cells are configured 16 series 1 parallel (16S1P). Overall size is 442mm by 340mm by 220mm, weight is 45 kilograms and M8 terminals exit an ABS case rated IP54.

Cycle Life and Longevity of This Marine Battery

An electric drive that cycles this marine battery on every outing still sees eight to ten years before capacity reaches 80 percent. Because 48V is delivered in one assembly instead of four 12V bricks, there are no inter-battery balance cables to add resistance, so this marine battery returns more of its rated energy to the propeller over its working life.

Why LiFePO4 Beats Lead-Acid Onboard

Electric and hybrid drives lose efficiency when 48V is stitched from four 12V bricks and heavy balance cables; this marine battery delivers 48V from one sealed assembly, cutting losses and freeing locker space. It weighs far less than the lead equivalent, needs no maintenance, and the Bluetooth feed lets the skipper match throttle to remaining range with confidence.

Charging Recommendations

Charge this marine battery at 56.8 to 58.4V with 50A recommended or 100A maximum, ideally from a shore charger with a 16S LiFePO4 profile. Store around 50 percent SOC between seasons, and confirm cell balance through the app before a long-distance run.

Environmental Tolerance of This Marine Battery

This marine battery discharges from -20C to 60C and charges from 0C to 55C, storing safely from -20C to 60C with a 65C BMS cutoff. Its IP54 ABS shell resists splash and dust in the transom well, and the nickel-plated M8 terminals hold up to constant saltwater exposure.

Communication and Monitoring of This Marine Battery

Bluetooth is integrated, streaming SOC, voltage, current, power and temperature to the mobile app so the skipper can log range against speed. The BMS protects this marine battery at 58.4V overcharge, 40V over-discharge, 300 to 800 microsecond short circuit and 65C thermal limits, and it supports CAN on request for drive controllers.

Applications for This Marine Battery

This marine battery suits electric outboards, hybrid sail-drives, bow thrusters on larger yachts and 48V marine house banks. It runs navigation, comms and refrigeration at 48V and rolls into parallel banks for longer range. Skippers can pair it with most 48V outboard controllers without a DC-DC stage.

Installation and Safety of This Marine Battery

Secure this marine battery in the transom well or a ventilated locker, torque M8 terminals to 8 to 10 Nm and fuse the output for 100A continuous. Keep the Bluetooth antenna above the waterline for signal, charge only above 0C, and re-check terminal torque after the first full-throttle run.

Frequently Asked Questions

Q: Will it power a 48V outboard directly?
A: Yes. At 51.2V nominal this marine battery feeds 48V outboards and drives directly, and the drive sees a stable supply across the full SOC range.

Q: How long can I run at cruising speed?
A: Range depends on the drive and hull, but the 5120Wh capacity of this marine battery typically supports several hours of moderate cruising on a small craft.

Q: Can I parallel packs to extend range?
A: Parallel operation is supported for matching units at equal charge. Keep cable lengths equal so this marine battery pair shares current evenly.

Q: Does it work with my outboard throttle?
A: The drive controller sees a stable 48V from this marine battery across the SOC range, so throttle response stays consistent from full to empty.

Q: How heavy is the pack to lift aboard?
A: At 45 kilograms this marine battery should be lowered with two people or a small hoist into the transom well.

Warranty and Shipping

This 51.2V 100Ah marine battery includes a 5-year limited warranty covering defects and 80 percent capacity retention beyond 3000 cycles. Shipping takes 15 to 25 days in Ecolite cartons with foam blocking on export pallets. We accept L/C, T/T, PayPal and Western Union and can quote FOB or DDP.

OEM and Customization

OEM support covers private-label case art, engraved part numbers, Bluetooth app branding and CAN profiles matched to your drive controller. A wiring diagram is issued before tooling. OEM runs start at 100 units.

What's Included

Each unit ships with the 51.2V 100Ah LiFePO4 pack, integrated Bluetooth BMS, sealed IP54 ABS case, M8 bolts and a manual. Charger and cables are optional.