01
Specification
Voltage, capacity, dimensions, connectors, environment. We define requirements and select the cell type (18650, 21700, 26650, 32650).
Custom battery packs · Made in EU
Custom Li-ion battery packs
Design and manufacturing of custom Li-ion battery packs — from specification to a finished, tested pack. The entire process from a single manufacturer.
- 520cells / hour
- 6welds per cell
- 50 000+cells welded
- 1supplier — full process
The complete pack, not just spot welding
Inputs: voltage, capacity, dimensions, operating environment. The remaining scope handled in full by the manufacturer.
Scope: CAD design, 3D-printed cell holders, CNC spot welding, BMS and electronics assembly, potting, QC testing. All key steps from a single manufacturer, no outsourcing.
How we work
Six steps: specification to finished pack
A repeatable process from specification to finished pack.
02
CAD design
3D model of the cell holder, electrical layout, BMS selection and placement. Dimensional verification before production.
03
Prototype
3D-printed holder from our FDM/SLA farm, sample welding, dimensional and weld-quality checks. Fast iteration.
04
CNC spot welding
Automated CNC welder — 6 welds per cell, dual-head (two identical packs at once), ~520 cells/h.
05
Assembly
BMS integration, THT/SMT wiring, balancing, enclosure assembly (resin casting or 3D print) — a complete pack ready for integration.
06
Potting + testing
PCB potting with PU/EP resin against moisture, vibration and thermal shock. Full charge cycle + QC.
Technical capabilities
Automatic CNC welding machine
Two parallel Heltec HT-SW02H pneumatic heads running in CNC mode. A dedicated build lets us weld two packs in parallel, at a throughput of ~520 cells per hour.
Standard: 6 welds per cell (3 per terminal) — twice as many as typical manual builds. Result: lower contact resistance, less heating, longer pack lifetime.
Supported cells
- 18650
- 21700
- 26650
- 32650
Full turnkey capability from a single manufacturer
Every stage of pack production, in-house
01
3D printing (FDM/SLA)
3D printing — cell holders, cages, enclosures. Rapid prototype iteration.
02
Electronics (THT/SMT)
Hand and semi-automated soldering. BMS assembly, wiring, testing.
03
PU/EP resin casting
Enclosures and housings in polyurethane and epoxy resin. Small and medium runs.
04
Potting
PCB potting — protection against moisture, dust, vibration, thermal shock.
05
Low-volume injection molding
3D-printed or metal molds. Enclosures and mounting parts in small series.
06
Testing & QC
Charging stations, capacity measurement, cell balancing, quality control.
Applications
Where our packs go
- E-bikes / scooters
- Drones / UAV
- Robotics / AGV
- Marine / e-boats
- Energy storage (ESS)
- Power tools
- Electric vehicles
- R&D prototypes
Need a custom battery pack?
Send us your specification — we'll quote within 48 h.
info@anvproduction.pl · Al. Jerozolimskie 202, Warsaw
Get in touch