Deep-cycle & auxiliary power
For RV house loads, marine electronics, backup power, portable systems and small off-grid storage. Specify the running load, required operating time and charging source.
Home / 12V lithium batteries
SOURCE-FACTORY MANUFACTURING · SINCE 200612V lithium batteries.
12V lithium batteries.
Built around your application.
Compact LiFePO4 power for engine starting, backup systems, RV house loads, marine electronics and portable energy. Choose a capacity, then tailor the battery to your electrical and mechanical requirements.
Automotive-grade cells, advanced BMS protection and fast recharge capability support stable output, lightweight construction and more than 3,000 cycles.
LiFePO4 / 4S PLATFORM12.8V
A starting point for your project.
20Ah–300Ah catalogue configurationsOEM / ODM · Capacity · Casing · BMS · Communication
UNDERSTAND YOUR LOAD
One 12V platform. Two different power demands.
Robur’s 12V LiFePO4 series uses a 4S configuration with a nominal voltage of 12.8V. Start with what the battery needs to power—not capacity alone.
Engine starting & start assist
For short bursts of high current. Specify the engine, crank current and pulse duration so the cell, BMS and terminals can be matched. Dual starting and deep-cycle use depends on the configuration.
BATTERY RANGE
Choose your 12V battery capacity.
Explore eight catalogue configurations from 20Ah to 300Ah. Capacity is the starting point; confirm current capability, case dimensions, terminals and charging requirements for your project.
12V 20Ah
Discuss this capacity ↗
12V 30Ah
Discuss this capacity ↗
12V 50Ah
Discuss this capacity ↗
12V 80Ah
Discuss this capacity ↗12V 100Ah
Discuss this capacity ↗
12V 150Ah
Discuss this capacity ↗
12V 200Ah
Discuss this capacity ↗
12V 300Ah
Discuss this capacity ↗Need a different configuration? Our technical options also include 120Ah, with capacity, casing, terminals and data communication tailored to your program.
Customize your batteryLEAD-ACID REPLACEMENT
Make the move from lead-acid to lithium.
Robur’s 12V LiFePO4 batteries offer lightweight construction, faster recharge, stable voltage under load and virtually no maintenance. Their cold-cranking performance is designed to improve on lead-acid alternatives for the configured starting application.
Less weight to carry
Lightweight construction for compact equipment, mobile power and auxiliary installations.
More cycles in service
3,000–5,000+ cycles at 80% depth of discharge, 25°C and 0.5C, with the final specification tied to the selected configuration.
A complete system match
Check charging voltage, current demand, BMS behavior, mounting and connections before approving a replacement.
TECHNICAL REFERENCE
Look beyond the Ah rating.
Use the 12V 100Ah example below to discuss your specification. Configurable and optional features are identified individually; the agreed model datasheet defines the battery supplied.
Electrical Specifications (12V 100Ah Example)
| Chemistry | LiFePO4 (4S) |
|---|---|
| Nominal Voltage | 12.8 V |
| Nominal Capacity | 100 Ah (20/50/80/120 Ah optional) |
| Energy | 1.28 kWh |
| Internal Resistance | ≤ 25 mΩ (25°C, fully charged) |
| Continuous Discharge Current | 100 A (customizable 150–200 A for start assist) |
| Peak Discharge Current | 300–600 A @ 3–5 s (project dependent) |
| Continuous Charge Current | 50 A (≤0.5C recommended) |
| Charge Cut-off Voltage | 14.6 V ± 0.1 V |
| Discharge Cut-off Voltage | 10.0–10.8 V (configurable via BMS) |
| Parallel / Series | Parallel ≤ 4 units; series up to 4 units (48V) upon approval |
| Self-Discharge | ≤ 2% per month (25°C) |
BMS & Communication
| Protections | OVP/UVP, OCP, SCP, OTP/LTP, short-term crank support optional |
|---|---|
| Balancing | Passive (active optional for high current) |
| Communication | CAN / RS485 / Bluetooth (SOC, SOH, event log) |
| Data Functions | Voltage, current, temperature, cycle count, start-assist counter |
Mechanical & Interface
| Enclosure | ABS / steel / aluminum; low-temp self-heating optional |
|---|---|
| Ingress Protection | IP54 standard, IP65 optional (marine) |
| Size & Weight | Custom; 12V100Ah approx. 10–12 kg |
| Terminals | M8 posts, automotive posts (SAE), Anderson or custom |
| Mounting | Handles / brackets optional |
Environmental & Lifetime
| Cycle Life | 3000–5000+ cycles (80% DOD, 25°C, 0.5C) |
|---|---|
| Discharge Temperature | -20 ~ 60°C |
| Charge Temperature | 0 ~ 55°C (self-heating enables -20°C charging) |
| Storage Temperature | -20 ~ 45°C (recommend 10–35°C) |
| Humidity | ≤ 95% RH, non-condensing |
| Cooling | Natural convection |
Charging Solutions
| Charger | 14.6V lithium charger; DC-DC/alternator integration optional |
|---|---|
| Strategy | 0.2–0.5C standard; opportunity charging supported |
| Swapping / Onboard | Quick-swap cases / onboard charger optional |
Reliability Tests & Compliance
| Transport | UN38.3 (T1–T8) |
|---|---|
| Safety / Performance | IEC 62133-2 (cell); UL 1973 optional |
| EMC / Regulations | CE (EMC/LVD), RoHS/REACH |
| Protection | IP54/IP65 |
| Mechanical | IEC 60068 vibration & shock |
| Environmental | Temperature cycling; salt spray optional |
| Quality | 100% EOL test, aging test, barcode traceability |
Typical Capacity Options
| 12V 20Ah | 12.8V / 20Ah / 256 Wh / 20A cont. / 60A peak / Fish finder, UPS |
|---|---|
| 12V 50Ah | 12.8V / 50Ah / 640 Wh / 50A cont. / 150A peak / RV aux loads |
| 12V 100Ah | 12.8V / 100Ah / 1.28 kWh / 100A cont. / 300A peak / Marine, RV |
| 12V 120Ah | 12.8V / 120Ah / 1.54 kWh / 120A cont. / 360A peak / Off-grid |
Services & Support
| Engineering Support | Voltage/capacity/casing/BMS fully customizable |
|---|---|
| Monitoring | Bluetooth/4G app, fleet health dashboard optional |
| Warranty | Long-term warranty (configurable), global logistics |
| Documentation | Datasheets, wiring, MSDS, test & certification reports |
OEM & ODM
A 12V battery that fits your product.
Compact power should fit both your equipment and your supply program. Robur customizes 12V lithium batteries for engine start assist, backup energy, portable power and small off-grid storage, combining lightweight construction, long service life and enhanced safety compared with lead-acid alternatives.
APPLICATIONS
Match the battery to the application.
12V supports low-voltage and auxiliary tasks within a wider battery system. Explore Robur’s application ranges for complete equipment solutions; confirm the required system voltage and model-specific protection.
RV & camper
Lightweight deep-cycle lithium batteries support solar charging and onboard power for off-grid travel. Built-in BMS protection and 4,000+ cycles help keep house loads supplied.
12V focus: house loads, charging compatibility and installation space.
Explore the rv & camper range ↗
Marine
Robur’s LiFePO4 marine range supplies electric boats and onboard systems with high energy density, IP67-rated protection and an anti-corrosion design for harsh saltwater conditions.
12V focus: marine electronics and auxiliary power. The 100Ah example on this page specifies IP54 / optional IP65; select the marine model and protection level separately.
Explore the marine range ↗
Industrial vehicles
High-torque lithium battery systems serve forklifts, pallet trucks, AGVs and cleaning machines. Long cycle life, rapid charging and robust construction for high-vibration environments support efficient, maintenance-free operation.
12V focus: compatible low-voltage equipment and auxiliary loads. Complete traction systems require their own voltage and current specification.
Explore forklift batteries ↗
Golf carts
Robur’s golf cart battery range delivers consistent performance across 18 holes and beyond. Fast charging, lightweight construction and long-lasting power help keep fleets ready for players throughout the day.
12V focus: approved low-voltage or starting applications. Confirm the complete drive-system specification for an electric golf cart.
Explore the golf carts range ↗YOUR SUPPLY PARTNER
A manufacturing partner for your 12V program.
From the first technical brief to ongoing supply, work with one team on engineering, quality, delivery and long-term support.
Manufacturing at scale
16+ years of lithium battery expertise, 30 automated production lines and 500+ skilled employees support consistent quality and large-scale 12V battery production.
Quality & safety testing
Each battery undergoes comprehensive testing covering UN38.3, IEC, vibration, drop, IP65/IP67 waterproofing and thermal cycling for real operating conditions.
Flexible engineering
Adapt voltage, capacity, casing and BMS communication, including CAN and RS485, to the requirements of your project.
Global market support
Robur batteries meet international standards including CE, RoHS and UL upon request, supporting customers in more than 100 countries.
Supply & delivery
Stable raw-material supply and coordinated logistics support efficient delivery. Lead time is confirmed according to the model, order quantity and customization scope.
Long-term cooperation
Extended warranties, local technical support and OEM/ODM cooperation support a lasting business partnership.
HOW WE WORK
From requirement to repeat supply.
Engineering, sample validation and production control keep your 12V battery project moving from an agreed specification to delivery.
01Define the requirement
Review the application—golf carts, industrial vehicles, marine or other equipment—and agree performance, capacity and installation size. Our engineering team develops a tailored battery system around international standards and long-term reliability.
02Develop & test the sample
Build samples rapidly to the confirmed specification, with in-house cycle-life, safety and environmental testing. On-site customer testing support validates stable performance in real operating conditions.
03Control every production stage
30 automated production lines operating under ISO/IATF quality systems support consistent production. Every battery receives capacity, internal-resistance, BMS-function and appearance inspections.
04Deliver & support your program
Lead time is confirmed according to the model, order quantity and customization scope. Experience serving 100+ countries, remote technical assistance and localized after-sales networks support long-term operation.
WHO WE ARE
Source-factory experience. Long-term commitment.
Founded in 2006, Robur is a brand of Dongguan Xintu Power Technology Co., Ltd. Starting with golf cart battery manufacturing, the business has developed into a supplier of lithium battery power solutions for diverse applications.
With 500+ employees and 30 automated production lines, Robur delivers an annual capacity of 100,000 batteries. This manufacturing scale supports reliable, consistent supply for 12V battery programs. More than 100 employees have served for over a decade, and products are trusted in 100+ countries—continuity that supports long-term partnerships.
2006Founded
30Automated production lines
100,000Batteries / annual capacity
100+Countries served
Manufacturing to international standards.
Discuss transport, safety, environmental and quality requirements with our team. Match the test and certification documents to the battery model and destination market.
QUESTIONS BEFORE YOU SPECIFY
12V battery questions, answered.
What can a 12V lithium battery power?
Engine start assist, backup systems, RV house loads, marine electronics, small solar systems and portable power stations are typical applications. Match the selected pack to the load and charging system.
How long does a 12V LiFePO4 battery last?
With appropriate BMS protection, the stated typical lifespan is over 3,000–4,000 charge cycles—five times that of lead-acid equivalents. The technical example lists 3,000–5,000+ cycles at 80% depth of discharge, 25°C and 0.5C. Confirm the cycle-life specification and test conditions for your chosen model.
Can one battery serve both starting and deep-cycle loads?
Yes, depending on configuration. Specify both the sustained load and the cranking requirement so the cell, BMS, terminals and charging integration can be matched to dual-function use.
What protection is included for vehicle use?
Automotive-grade cells and multiple protection layers address short circuits, overcharge and temperature control. The BMS specification also includes over-voltage, under-voltage and over-current protection, with short-term crank support optional.
How quickly can you supply 12V lithium batteries?
Lead time is confirmed according to the model, order quantity and customization scope.
START YOUR PROJECT
Tell us what your 12V battery needs to do.
Share the application, capacity and operating requirements. Our team can review the configuration, documentation and supply needs with you.
Or prepare a short project brief below and open it in your email app. Nothing is sent from this page.