

LG Chem
LG E78-2P12S Lithium-Ion Battery Module
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LG E78-2P12S Lithium-Ion Battery Module – OEM-Grade Energy, Ready for EV Integration
Built for serious power systems and advanced EV applications, the LG E78-2P12S Lithium-Ion Battery Module is a high-efficiency, high-capacity pack engineered with premium LG 21700 cells in a 2P12S configuration. Delivering a robust energy profile in a compact footprint, this module is ideal for electric vehicles, energy storage systems, and industrial mobile power solutions.
🔋 Technical Highlights:
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43.2V Nominal Voltage (12S Configuration)
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5.0Ah Capacity (2P) – LG E78 21700 cells (5000mAh per cell)
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~216Wh Total Energy Output
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Max Continuous Discharge: 50A
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Max Charge Voltage: 50.4V / Cutoff: 36.0V
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Integrated Thermal Monitoring Harness
⚡ Engineered for Demanding Systems
Each LG E78-2P12S module is factory-built with OEM precision and internal spot-welded connections, ensuring low resistance, minimal voltage drop, and strong thermal performance. These modules are perfect for building scalable, high-voltage packs with consistent behavior under load.
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High-Grade LG M50LT Cells – Trusted for durability and cycle life
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Compact, Stackable Housing – Ideal for modular builds
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Thermistor Equipped – Real-time temperature monitoring for advanced BMS integration
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Pre-assembled Bus Bars & Balance Leads – Simplifies wiring and pack design
🛠️ Applications:
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Electric Vehicle Conversions (Motorcycles, Karts, Compact EVs)
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Off-Grid Solar Battery Storage
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Robotics & Industrial Mobility
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Backup Power & Portable Energy Systems
Built for Builders – Backed by EVSource
At EVSource.com, we stock only authentic, high-quality LG modules with verified specs and traceable sourcing. The LG E78-2P12S gives you OEM-level performance with DIY flexibility—perfect for engineers, fabricators, and high-power hobbyists who demand precision and reliability.
💡 Need Custom Pack Design or BMS Recommendations?
Our technical team is ready to help you design and scale with LG E78 modules. Reach out today to get started.