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Retail launch coming soon

LiFePO4 deep-cycle batteries for RV, marine and off-grid

12V and 24V packs with Smart BMS and Bluetooth monitoring — a phase-one range of four documented models from 100Ah to 314Ah, with full specifications published for each and more models to follow.

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4000+Cycles @ 80% DOD

IP65Sealed case

4S4PMax 12V bank

−20 °CLow-temp discharge

Nominal 12.8 V Capacity 100 Ah Energy 1280 Wh

Certified & tested

UN38.3 transport safetyIEC 62133CE markingRoHSUL94 V-0 caseUL1642 cellsUL2580 cellsLevel 9 packagingUN38.3 transport safetyIEC 62133CE markingRoHSUL94 V-0 caseUL1642 cellsUL2580 cellsLevel 9 packaging

The range

Two voltages, one documented range

12V and 24V, 100Ah to 314Ah. Every model we list has published specifications, protection limits and a datasheet we can send you.

RV & Marine

12V LiFePO4 battery

The everyday workhorse for campers, boats and small off-grid systems. Bluetooth monitoring with cell-level detail.

100 / 314 Ah100–200 A Smart BMS

Full specifications IP65

24V systems

24V LiFePO4 battery

Native 24V power with fewer inter-battery connections — less wiring, fewer failure points, faster installs.

100 / 200 Ah native 24V100 A Smart BMS

Full specifications CE

Backup

Home backup storage

Expandable battery banks for homes and small commercial sites — sized for real outage loads, not marketing numbers.

Scalable bankTraceable cells

Talk to engineering B2B

Applications

Where our batteries actually go

Four application guides cover most inquiries, each with a different sizing rule. Commercial and wholesale go straight to us.

RV & camper

House loads, inverters and 12V fridges — sized for multi-day boondocking without hookups.

Marine

Trolling motors, bow thrusters and house banks, with low-temperature charge protection.

Solar off-grid

Daily cycling on PV systems where cycle life and depth of discharge decide the payback.

Home backup

UPS-style backup for sump pumps, fridges, medical devices and telecom equipment.

Small commercial

Backup and off-grid power for workshops, sheds, gates and remote equipment.

Bulk & wholesale

Volume orders for installers and resellers — ask us for current availability, pricing and documents.

See the application guides · Send us your load list

Guides

The questions before the model number

Sizing, capacity, lead-acid replacement, wiring, charging and cold weather — written around real systems, not brochure copy.

Sizing

What size LiFePO4 battery do I need for an RV?

A practical RV battery sizing guide: load audit, daily Wh, autonomy, inverter surge, 12V vs 24V, and which SEVENERGY model fits.

8 min read Model choice

12V 100Ah vs 314Ah, 24V 100Ah vs 200Ah: which capacity?

Compare the four SEVENERGY models by usable energy, discharge current, weight, dimensions and bank limits — and pick the smallest pack that covers the load.

7 min read Charging

Charging LiFePO4: voltage, current, alternator, solar and cold weather

A practical charging guide for SEVENERGY 12V and 24V packs: charge voltage, current, LiFePO4 profile, DC-DC, MPPT and low-temperature cut-off.

8 min read

All 12 guides

Mobile app

The BMS, readable from your phone

Bluetooth Low Energy only. No account, no cloud, no subscription — the readings stay on your phone.

Overview

State of charge, pack voltage, current, power and temperature, plus the estimate of time to full or empty at the present load.

Cells

Every cell voltage, the highest and lowest cell, the spread in mV, and which cells are balancing right now.

Trends

Voltage, current, SOC and temperature history over 1 hour, 24 hours, 7 days or 30 days.

Alerts

A timeline of protection events — over/under-voltage, over-current, over-temperature, short circuit — with what cleared them.

Settings

Celsius or Fahrenheit, auto-reconnect, battery naming, BMS firmware version and Bluetooth address.

Help

In-app support that attaches the model and serial number to the email, so a case can be opened without back-and-forth.

Explore the app

Why buyers choose us

What you get with every battery

Product specifications and the support commitments that come with them.

4000Charge/discharge cycles at 80% DOD

100–314 AhCapacity range today

IP65Ingress protection on the listed models

4Models, each with a published datasheet

Full specifications

Capacity, continuous current, protection thresholds and temperature ranges, published per model.

Bluetooth monitoring

Smart BMS models report state of charge, current, cell voltages and protection events to the app.

Certificates on request

UN38.3, CE, RoHS, IEC 62133 and UL94 V-0 documentation for the models we list.

Low-temperature protection

Charging stops below 0 °C and resumes above 10 °C, so a winter charge does not damage the cells.

Sizing help

Send the load list and the application — we work out autonomy, inverter surge and recharge time before you buy.

English & Chinese support

Technical questions answered by email in either language, usually within one business day.

Certifications

Compliance first, price second

Importers and EPCs verify documents before they discuss price. Here is what we hold.

UN38.3 / Level 9

Transport safety for lithium batteries by air and sea, with the test summary report.

CE / RoHS

EU market access and hazardous-substance compliance for every listed model.

IEC 62133 / UL94 V-0

Cell and battery safety, plus flame-retardant ABS enclosure material.

See the full certification list

Distributors and installers

Volume pricing, product documentation and certificate copies for the models you plan to stock. Tell us the market and the application.

Request a quote Download specifications