| Model | Capacity | Energy (Wh) | Size (mm) | Weight |
|---|---|---|---|---|
| 12V 10Ah | 10Ah | 128Wh | 150×100×70 | ~1.3kg |
| 12V 20Ah | 20Ah | 256Wh | 180×120×80 | ~2.5kg |
| 12V 50Ah | 50Ah | 640Wh | 230×140×160 | ~6.5kg |
| 12V 100Ah | 100Ah | 1280Wh | 330×170×215 | ~11.5kg |
Custom 12V LiFePO4 batteries deliver high discharge currents, exceptional safety standards, and extended cycle life.
12V LiFePO₄ battery packs are an ideal upgrade from lead-acid batteries. They offer over 3,000 charge cycles, weigh up to 80% less, and deliver 94% round-trip energy efficiency. These packs are also lead-free and environmentally friendly.
Junda provides custom 12.8V LiFePO₄ battery packs tailored for different industrial and outdoor applications, with advanced options such as:
Modular configurations for flexible system scaling
Waterproof & ruggedized designs for harsh environments
High and low temperature resistance for extreme climates
Bluetooth connectivity for smart battery monitoring
Self-heating systems to maintain performance in cold conditions
Our engineering team delivers high-performance 12.8V LiFePO₄ battery packs with 3,000+ cycles and a 5-year warranty.
The custom 12V LiFePO₄ battery pack is an ideal replacement for lead-acid systems, offering high energy efficiency, longer cycle life, and enhanced safety. Whether you need a compact power source for portable devices or a reliable battery for industrial applications, reviewing the specifications and use cases will help you choose the right solution. Explore the details below to find a custom 12V pack that fits your needs.
| Parameter | Specification |
|---|---|
| Battery Type | 12.8V LiFePO₄ Battery Pack (4S) |
| Nominal Voltage | 12.8V |
| Nominal Capacity | 10Ah / 20Ah / 50Ah / 100Ah / Custom |
| Energy | 128–1280Wh (based on capacity) |
| Charge Voltage | 14.6V |
| Cut-off Voltage | 10.0V |
| Standard Discharge Current | 10A–100A |
| Peak Discharge Current | 30A–200A |
| Cycle Life | >2000 cycles @ 80% DOD |
| BMS | Built-in (overcharge, overdischarge, short-circuit, temperature protection) |
| Communication | Optional: RS485 / CAN / Bluetooth |
| Enclosure | ABS / Metal / Waterproof / Custom |
| Certifications | UN38.3 / MSDS / CE / UL (on request) |
| Model | Capacity | Energy (Wh) | Size (mm) | Weight |
|---|---|---|---|---|
| 12V 10Ah | 10Ah | 128Wh | 150×100×70 | ~1.3kg |
| 12V 20Ah | 20Ah | 256Wh | 180×120×80 | ~2.5kg |
| 12V 50Ah | 50Ah | 640Wh | 230×140×160 | ~6.5kg |
| 12V 100Ah | 100Ah | 1280Wh | 330×170×215 | ~11.5kg |
| Capacity Range | Typical Applications |
|---|---|
| 10–20Ah | LED lighting, GPS trackers, fish finders, portable devices |
| 50Ah | Medical equipment, e-mobility, backup systems, communication gear |
| 100Ah | Solar storage, RVs, marine, industrial equipment, UPS |
| Custom | OEM/ODM for smart devices, IoT, and special equipment |
Junda is a professional lithium battery manufacturer, supplying certified battery solutions worldwide. Product standards are continuously improved to help you maintain reliable supply and keep your customers satisfied.
A compact lithium iron phosphate battery designed for portable and backup applications. Junda manufactures 12V 7Ah LiFePO₄ batteries with stable performance, long cycle life, and built-in BMS protection for safe operation.
Key Features:
Chemistry: LiFePO₄ (Lithium Iron Phosphate), 12.8V nominal
Rated capacity: 7Ah, over 90% usable
Lifecycle: 3,000+ cycles at 80% DOD
Weight: 70% lighter than lead-acid batteries
Integrated BMS: Overcharge, over-discharge, short-circuit, and temperature protection
Maintenance-free, non-toxic, RoHS/CE compliant
Typical Applications:
Ideal for small UPS systems, emergency lighting, alarm systems, and portable solar setups where space and weight are critical.
The 12V 10Ah lithium iron phosphate battery is a compact, efficient power solution ideal for small energy storage systems and portable electronics. Junda manufactures this model with high-quality 21700 or prismatic cells and full BMS protection.
Key Features:
Nominal Voltage: 12.8V | Capacity: 10Ah (128Wh)
Cell Type: Cylindrical or prismatic LiFePO₄ cells
Lifecycle: 3,000+ cycles at 80% DOD
Lightweight design: ~1.3kg
Built-in BMS with over/under voltage & short-circuit protection
RoHS & CE compliant; lead-free and maintenance-free
Typical Applications:
Fish finders, small e-scooters, emergency lights, and mobile solar power kits.
The 12V 12Ah LiFePO₄ battery is ideal for replacing sealed lead-acid batteries in mobility scooters and backup power systems. Junda offers OEM/ODM customization for dimensions, connectors, and casing.
Key Features:
Rated Capacity: 12Ah | Energy: 153.6Wh
Weight: Approx. 1.5kg
Cycle Life: 3,000–5,000 cycles
Custom case options: plastic, metal, or waterproof
Stable discharge voltage and fast charging
Optional Bluetooth or fuel gauge available
Typical Applications:
E-scooters, UPS systems, emergency lighting, portable medical devices.
This 12.8V 16Ah lithium battery balances size and power for users who need extended runtime without added weight. A great option for DIY solar systems and field monitoring equipment.
Key Features:
Capacity: 16Ah (204.8Wh)
Built-in BMS with full protections
Approx. 2kg, compact for mobility
Long storage life with <3% monthly self-discharge
Environmentally safe and UN38.3 certified
Typical Applications:
Field sensors, low-power solar storage, mobile lighting, small AGVs.
SEO Keywords: 12V 16Ah LiFePO4 battery, off-grid lithium battery, mid-size lithium power pack
The 12V 20Ah LiFePO₄ battery is engineered for light marine use, backup systems, and small-scale solar setups. Junda supports customization of terminals, BMS, and housing to meet your project specs.
Key Features:
Energy: 256Wh | Nominal Voltage: 12.8V
Supports 4S (48V) system build
Fully protected with smart BMS
IP65/IP67 casing options
Typical Applications:
Kayak trolling motors, security power backup, medical carts, solar kits.
The 12V 30Ah lithium iron phosphate battery is designed for higher energy needs with compact dimensions. Ideal for mid-sized solar storage, wheelchairs, and off-grid living systems.
Key Features:
Capacity: 30Ah (384Wh) | Voltage: 12.8V
Weight: ~3.6kg
High discharge capability with low voltage drop
Long cycle life: 3,000–6,000 cycles
Parallel and series compatible
Optional: smart BMS with CAN/RS485
Typical Applications:
Solar street lighting, electric wheelchairs, camping power boxes.
The 12.8V 50Ah lithium battery is one of the most popular choices for replacing bulky lead-acid batteries in solar, RV, and mobile energy applications. Junda’s packs feature stable discharge and long lifespan in harsh environments.
Key Features:
Nominal Voltage: 12.8V | Capacity: 50Ah (640Wh)
Cycle Life: 4,000–6,000 cycles at 80% DOD
Max Discharge: 50A continuous | 100A peak
Smart BMS with short-circuit and thermal protection
Lightweight (~6kg) and maintenance-free
Series/parallel expansion supported (up to 4S4P)
Typical Applications:
Solar generators, RV battery upgrades, camping power stations, backup power for telecom.
The 12V 200Ah lithium battery is engineered for off-grid energy storage, residential backup systems, and solar-powered cabins. With 2560Wh capacity, it ensures stable output for high-load devices.
Key Features:
Capacity: 200Ah | Energy: 2.56kWh
Prismatic LiFePO₄ cells, Grade A only
100A continuous output, BMS customizable
4,000 cycles | 10-year design life
Supports CAN/RS485 communication
Aluminum or steel housing for outdoor environments
Complies with UN38.3, MSDS, CE, RoHS
Typical Applications:
Solar homes, hybrid inverters, medical carts, server rooms, mobile workstations.
Designed for long-duration usage and large energy reserves, the 12.8V 300Ah battery provides 3840Wh of usable power with minimal voltage drop. It is built for applications that require high reliability and deep cycling.
Key Features:
Voltage: 12.8V | Capacity: 300Ah | Energy: 3.84kWh
Grade A LiFePO₄ prismatic cells with low internal resistance
Intelligent BMS with high current discharge up to 150A peak
Bluetooth, CANBus, and RS485 options available
Stackable design for parallel system builds
Wide temperature tolerance: -20°C to 60°C
Typical Applications:
Residential ESS, golf cart upgrades, marine backup, industrial storage racks.
The 12.8V 400Ah lithium iron phosphate battery is built for heavy-duty off-grid energy systems, microgrids, and industrial backup power. It stores over 5.1kWh with 6000+ cycles and minimal maintenance.
Key Features:
Voltage: 12.8V | Capacity: 400Ah (5.12kWh)
Long service life: 6,000+ cycles @ 80% DOD
Continuous current: 150A | Peak: 200A
Integrated smart BMS with optional smart display
Supports rack-mount, cabinet, and stackable installation
Compatible with most 12V solar inverters and charge controllers
Typical Applications:
Off-grid energy storage, backup power for data centers, solar energy banks, electric boats.
You gain higher safety, longer cycle life (2000–5000+), faster charging, and lower lifetime cost. LiFePO₄ is also more stable in extreme temperatures and carries no toxic heavy metals.
Your voltage depends on your device’s motor or inverter requirements. For example, 12.8V is ideal for RV and lighting systems, 51.2V for solar storage or telecom, and 409.6V for large energy storage systems and EVs.
Yes, each pack can be customized to work with your inverter or EMS system using CAN, RS485, or UART protocols. Our engineering team ensures BMS compatibility during the design phase.
Most packs are compliant with UN38.3, CE, RoHS, and optionally UL 1642 / 2054 and IEC 62133, depending on your market and application.
With proper use, you can expect 2000–5000+ charge/discharge cycles, depending on depth of discharge and usage conditions.
Yes, custom configurations can be built for series or parallel use. Modular designs are available to support system scalability.
Yes. Waterproof enclosures (IP65–IP67) and self-heating modules for -30°C operation are available upon request.
Absolutely. Packs can be tailored with specific dimensions, terminal types, communication ports, and mounting solutions to meet your hardware needs.
Samples typically take 7–10 working days. Mass production requires 15–25 working days after sample approval, depending on complexity.
Yes. All packs that require international shipping come with UN38.3 test reports, MSDS, and compliant packaging for air, sea, or ground transport.
With more than a decade of experience, Junda delivers precision-engineered lithium battery packs tailored for your unique applications. Here’s what makes us a trusted partner for global B2B clients:
At Junda, our engineering team is led by a senior battery architect with 15+ years of hands-on experience at CATL, BYD, and other industry leaders. Backed by a cross-functional team of 6 engineers, we provide full-cycle development from design and simulation to testing and certification. We’ve completed over 1,000 custom battery pack projects across sectors like eMobility, energy storage, medical devices, and industrial tools—always focusing on safety, reliability, and performance.
Junda operates under a strict ISO 9001:2015-certified quality management system, overseen by our QA director and implemented across every department. From incoming cell inspection to final pack aging tests, every step is digitally tracked and traceable. Our system ensures stable supply chain sourcing, controlled assembly processes, and compliance with industry benchmarks such as UN38.3, CE, and IEC 62133.
Junda’s battery pack assembly process integrates mechanical, electrical, and thermal design tailored to your use case. Our capabilities include IP67/IP68 waterproof housing, high-discharge BMS systems, CAN/RS485 communication protocols, and reinforced designs for vibration or extreme environments. We conduct cell sorting, welding, insulation, balancing, and aging tests in-house to ensure consistent performance and longevity.
From your first inquiry to final delivery, we provide responsive, multilingual support backed by a dedicated sales and engineering team. We guide clients through technical evaluation, prototyping, compliance, and logistics—ensuring a transparent, stress-free experience. Whether you need an urgent sample or a long-term OEM solution, we’re here to make your battery development process efficient and reliable.
Share your voltage, size, application, and quantity needs—we’ll assess your project quickly.
Our engineers will optimize the design, confirm details, and provide samples if needed.
Once approved, we start production and arrange fast, secure shipping to your destination.
Need a custom lithium battery pack? Just send us your specs—we’ll help you choose the right voltage, case, and configuration for your application.
At JUNDA, we make customization easy. Follow these 3 simple steps to start today:
Send your battery requirements — voltage, capacity, casing type, or upload drawings/photos.
We’ll evaluate your specs and recommend the best configuration. A detailed quote will be sent within 24 hours.
After approval and deposit, we start production. Shipping and tracking will be arranged for fast, secure delivery.