LG E78-2P12S Lithium Ion Battery Module - New
LG E78-2P12S Lithium Battery Module — 6.87 kWh, 44.04 V, 156 Ah
High-performance NMC module direct from LG Energy Solution OEM stock. Compact 2P12S architecture with excellent energy density, fast-charge capability, and robust thermal interface for EV, ESS, and industrial power applications.
- NMC Chemistry
- 2P12S · 44.04 V Nominal
- 6.87 kWh · 156 Ah
- 222 Wh/kg
Brand New · Direct from OEM
Overview
The LG E78-2P12S module delivers high specific energy and strong power capability in a compact enclosure, making it an ideal building block for electric vehicle battery packs, renewable energy storage systems, and industrial backup power. The 2P12S layout pairs two cells in parallel across twelve series groups, combining fast charging with a wide operating temperature range and a large, flat cooling interface for straightforward pack-level thermal design.
Built on LG Energy Solution prismatic NMC cell technology, this module is widely used in OEM traction packs and stationary storage systems worldwide. Its clean mechanical envelope and M6 power terminals make it easy to integrate into custom series/parallel pack architectures with industry-standard BMS controllers.
Key Features & Benefits
- Advanced NMC chemistry: LG Energy Solution cell technology for long cycle life, high round-trip efficiency, and low self-discharge.
- 2P12S topology: 44.04 V nominal with 156 Ah capacity delivering 6.87 kWh of usable energy per module.
- High power output: up to 34.7 kW discharge and 16.3 kW charge at the module level.
- Fast charging: reach 80% SoC in approximately 30–45 minutes under optimal thermal conditions.
- Wide thermal range: bottom-surface indirect cooling interface; operates from −30 °C to +55 °C.
- Compact & lightweight: 31.0 kg with approximately 222 Wh/kg gravimetric energy density.
- Modular & scalable: clean mechanical envelope for series/parallel pack builds from single-module to multi-hundred-kWh systems.
- Compliance ready: supports UL, CE, and UN38.3 certification at the pack level when properly integrated.
Technical Specifications
| Battery Type | Lithium-Ion (NMC) |
|---|---|
| Manufacturer | LG Energy Solution |
| Configuration | 2P12S (2 parallel × 12 series) |
| Nominal Voltage | 44.04 V |
| Capacity | 156 Ah |
| Energy | 6.87 kWh |
| Max Charge Power | 16.3 kW |
| Max Discharge Power | 34.7 kW |
| Energy Density (Gravimetric) | ~222 Wh/kg |
| Operating Voltage Range | 36 V – 51 V |
| Operating Temperature | −30 °C to +55 °C |
| Storage Temperature | −30 °C to +60 °C |
| Dimensions (L × W × T) | 590 mm × 225 mm × 108 mm |
| Weight | 31.0 kg (68.3 lb) |
| Terminals | M6 power studs |
| Cooling Method | Indirect, bottom-surface thermal interface |
| Certifications | Supports UL / CE / UN38.3 at pack level (module integration required) |
Applications & Use Cases
Electric Vehicles & Hybrids
Traction packs for light and medium EVs, specialty platforms, motorsport builds, and hybrid-electric conversions. Proven in OEM vehicle programs.
Renewable Energy Storage (ESS)
Residential and commercial energy storage systems, solar and wind buffering, peak shaving, and microgrid stabilization.
Industrial Backup & UPS
High-reliability backup for factory automation, data centers, telecommunications, and mission-critical power infrastructure.
Marine & Aerospace
Compartmentalized energy storage with robust thermal interfaces and BMS monitoring for marine propulsion, UAVs, and aerospace development programs.
Integration Notes
- Cooling surface: indirect cooling via bottom face; target interface area of ~500 mm × 215.4 mm, clean, flat, and thermally coupled to cold plate or heat sink.
- Module clearances: allow +10 mm minimum (standard) or +15 mm (with planned swelling margin) between modules for cell expansion and mechanical tolerance.
- Power terminals: M6 studs; typical torque 9 Nm ±10% on clean, flat copper or tinned lugs.
- Environmental sealing: module is not sealed; ensure pack-level IP-rated enclosure to prevent condensation and ingress.
- BMS compatibility: integrates well with Orion BMS families — Standard, 02, or JR2 depending on pack voltage and application requirements. Evolve Electrics stocks all Orion BMS variants.
- CAD model: download the 3D STEP file below for mechanical integration and pack layout design.
Downloads & Resources
Ordering Information
- Availability: In stock — ships from Evolve Electrics
- Lead time: 2–3 business days
- MOQ: 1 module
- Volume pricing: contact us for quantity discounts on 10+ modules
- Technical support: Evolve Electrics offers pack design consultation and BMS integration support
Frequently Asked Questions
What is the nominal voltage of the E78-2P12S module?
44.04 V nominal (2P12S configuration — 12 series groups of NMC cells at 3.67 V each). Earlier 7.4 V references in some documentation apply to smaller 2S sub-modules, not the full 2P12S assembly.
Which BMS is recommended for use with this module?
We recommend the Orion BMS family — Standard, 02, or JR2 — depending on your pack architecture and total series cell count. Evolve Electrics is an authorized Orion BMS distributor and can help you select the right unit for your application.
Is liquid cooling required?
Indirect cooling via the bottom surface is strongly recommended for sustained power output, optimal cycle life, and operation at higher C-rates. The module's flat bottom face is designed for thermal coupling to a cold plate or heat exchanger.
How many modules do I need for a 48 V system?
A single E78-2P12S module provides 44.04 V nominal, which works well in nominal 48 V architectures. For higher voltage systems, connect modules in series — for example, two modules in series yield ~88 V, four yield ~176 V. Contact our engineering team for pack design guidance.
Can this module be used for energy storage (ESS)?
Yes. The E78-2P12S is widely used in residential and commercial energy storage systems, solar buffering, and microgrid applications. Its high cycle life, wide temperature range, and scalable architecture make it well suited for stationary storage deployments.
Is a 3D CAD model available?
Yes. A STEP file is available for download in the Downloads & Resources section above. Use it for mechanical integration, enclosure design, and pack layout planning.
What certifications does this module support?
The module supports UL, CE, and UN38.3 certification at the pack level when properly integrated with a BMS, enclosure, and safety systems. Evolve Electrics can advise on certification pathways for your specific application.
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LG E78-2P12S Lithium Ion Battery Module - New
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