PFC4261
12.8V 35Ah

Premium Standard Battery Pack

High Performance

Safe & Reliable

Built for Industries

PFC4261 Battery Pack
The PFC4261 12.8V 35Ah Premium LiFePO4 Battery Pack is a rugged, high-capacity rechargeable battery engineered for energy storage systems, marine equipment, electric mobility, backup power, and demanding industrial applications. Built with premium LiFePO4 cylindrical cells and a robust multi-protection BMS, it delivers exceptional 4000+ cycle life, high-current charging and discharging capability.
✓ 4000+ cycles at pack level, with individual cells rated for ≥4000 cycles
✓ Supports 2 battery packs in series connection
✓ Support 34A fast charging
✓ Multi-protection BMS
✓ Compliant with major international safety standards

Premium Quality

Engineered with advanced battery technology and strict quality standards for reliable, long-lasting performance

Battery Support

Expert engineering and technical support from concept and prototyping to manufacturing and integration

Custom Solutions

Capacity, connector, wire length, and labeling fully customizable. OEM branding and custom spec engineering available.

Global Battery Manufacturing

Worldwide battery manufacturing capabilities with facilities and support networks across the USA and Asia

Cell Spec – PHD 26650-3600
ChemistryLFP
Form Factor26650
Nominal Voltage3.2V
Capacity3.6Ah
Charging3.6A
Discharging10.8A
Cycle Life≥4000 cycles
Charging Temperature0~60°C
Discharging Temperature-30~65°C
Pack Spec – PFC4261 12.8V 35Ah
Configuration4S10P
Dimensions200*136*164mm
Voltage10~14.6V
Capacity≥35Ah
Charging34A
Discharging34A
Communication/
IP RatingIP67
ConnectorM6
CaseHandle-equipped plastic housing
Mechanical Dimensions
Length200 mm
Width136 mm
Height164 mm
ConnectorM6
PFC4261 Dimensions

Advanced BMS Architecture

The integrated Battery Management System is designed to maximize safety, longevity, and system integration ease.

PFC4261 Schematic
Multi-Protection Safety Features
Ultra Low Power Consumption
Integrated System Design
Supports High-Current Operations

Safety & Compliance

Our products are tested and certified for safe transport and end-use, meeting international standards for lithium-ion battery packs used in commercial and industrial applications.

UN38.3
Certified for safe international transportation of lithium batteries by air, sea, and land.
IEC62133
Internationally recognized safety standard for rechargeable lithium battery cells and packs.
PSE
Compliant with Japan’s Product Safety Electrical Appliance and Material (PSE) requirements for applicable battery products, supporting regulatory compliance for the Japanese market.
UL1642
UL-certified lithium battery cell safety for reliable and secure operation.

Battery Pack Product FAQs

custom battery products

Explore frequently asked questions about PHD Energy’s battery pack products, including chemistry options, customization capabilities, safety features, certifications, and industrial application support.

Our battery pack products are available in multiple chemistries including Li-Ion, LiFePO4 (LFP), LTO, and Sodium-Ion, allowing solutions tailored for energy density, safety, cycle life, and application requirements.

Yes. PHD Energy designs custom battery pack products with configurable voltage, capacity, dimensions, BMS functionality, connectors, and enclosure options to meet OEM and industrial application requirements.

Our battery pack products support a wide range of applications including robotics, medical devices, drones, IoT systems, energy storage, portable electronics, industrial equipment, and mobility solutions.

Yes. Many of our battery pack products include advanced Battery Management Systems (BMS) with protections for overcharge, over-discharge, overcurrent, short circuit, and temperature monitoring for enhanced safety and reliability.

 

Submit your RFQ

What Happens Next

Submit your requirements and a PHD Energy engineer will contact you within 1 business day.

Share application, specs, volume, and timeline.

Our team evaluates your needs and prepares a tailored recommendation.

Get a detailed proposal including design options, pricing, and lead times.

We build, test, and refine until your solution is field-ready.