Battery Capacity Testers
Dedicated grading systems with up to 512 channels per cabinet.
View details →Battery Formation & Grading Systems
The first charge that decides a cell's life. High-density formation and grading systems built for gigafactory-scale lithium battery production.
Formation & Grading
Where Every Cell Proves Its Quality
The VT-FG series forms cells with precisely controlled first charge profiles and then grades them by capacity, internal resistance and voltage — all in one automated production system with full data traceability.
- ✓ Up to 1024 independent channels per cabinet
- ✓ Regenerative discharge with ≥90% energy recovery
- ✓ ±0.05% FS accuracy across the full range
- ✓ Automated grading, sorting and label printing
- ✓ MES / ERP integration with barcode traceability
Models & Specifications
VT-FG Series Model Overview
| Model | Voltage Range | Current Range | Channels / Cabinet | Energy Recovery | Best For |
|---|---|---|---|---|---|
| VT-FG-5V10A | 0–5 V | 0.1 mA–10 A | 512 / 1024 | ≥90% | Cylindrical cell formation |
| VT-FG-5V20A | 0–5 V | 0.1 mA–20 A | 256 / 512 | ≥90% | Prismatic / pouch formation |
| VT-FG-10V10A | 0–10 V | 0.1 mA–10 A | 256 | ≥88% | High-voltage cell formats |
Systems include temperature-controlled formation rooms, tray fixtures and full factory acceptance testing.
Key Features
Engineered for Gigafactory Throughput
1024 Channels
Massive channel density cuts floor space and cost per channel for large-scale production.
Energy Recovery
≥90% of discharge energy returned to the grid — lower OpEx, lower heat, greener factory.
Formation Control
Multi-step CC/CV/CP formation profiles with per-step limits, dV/dt and rest control.
Auto Grading
Grade by capacity, IR, self-discharge and voltage consistency; sort into bins automatically.
Traceability
Barcode-linked records per cell — from electrode batch to final grade, fully retrievable.
Hot-Swap Trays
Quick-release trays reduce load/unload time between formation batches.
Fault Isolation
Per-channel protection and isolation so one bad cell never halts a batch.
MES Integration
REST/OPC-UA interfaces push data to your MES for live production dashboards.
Applications
Formation & Grading Applications
The VT-FG series is the production backbone of modern lithium battery testing.
- ✓ Formation of cylindrical, prismatic and pouch lithium-ion cells
- ✓ Capacity and IR grading before pack assembly
- ✓ Self-discharge screening with extended rest measurement
- ✓ NMC, LFP, LCO and Na-ion cell production lines
- ✓ Turnkey formation rooms with temperature control
Plan Your Formation Capacity
Tell us your cell format and daily output target — we'll engineer the complete formation and grading line.
Request a Quote →Free application consultation · 24-hour response
Related Products
Complete the Cell Production Chain
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Inline IR measurement to complete the grading criteria set.
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Charge/Discharge Test Systems
Laboratory cyclers for process development and recipe validation.
View details →Scaling Up Cell Production?
Get a formation & grading system quotation with line design, installation and operator training included.