A TESUP stator wound with thick 0.90 mm copper wire, beside the title 0.90 mm copper, 60 turns per slot

These are the newest generators on our winding bench: stators wound with thick 0.90 mm copper wire, 60 turns in every slot. They are made for the battery-charging option on the Atlas and the Magnum.

When you tick the battery option on the Atlas or Magnum product page, this is the generator your turbine gets. It is built for 12, 24 or 48 V battery banks, off-grid or as backup.

Why thicker wire

A battery bank works at a low voltage, so the generator has to deliver more current. Thicker wire carries more current, which is why the battery option uses 0.90 mm copper instead of our standard 0.55 mm winding.

60 turns, slot by slot

The stator is a stack of thin steel laminations with a ring of slots inside. Each slot is lined with white insulation, so the copper never touches the steel, and then filled with 60 turns of 0.90 mm enamelled copper wire.

Close-up of a stator: steel laminations, white slot insulation and loops of 0.90 mm copper wire
Steel laminations, white slot insulation and 0.90 mm copper: 60 turns in every slot.
A fully wound TESUP stator standing on the winding bench, with copper coils all the way around

Inverter or battery?

Most homes send their wind power to a grid inverter. For that, the standard 0.55 mm winding is the right choice, and you do not need a charge controller or batteries.

If you charge batteries instead, choose the battery option and your turbine gets the 0.90 mm winding. The Atlas has its charge controller built in and connects straight to the battery. The Magnum connects through the separate TESUP charge controller.

Diagram: the standard 0.55 mm winding feeds a grid inverter for home power; the battery option with a 0.90 mm winding feeds a charge controller and a 12, 24 or 48 V battery bank
Schematic only. The Magnum uses the separate TESUP charge controller; the Atlas has one built in.
A wound stator in front, with another stator on the winding bench behind it
One finished, the next one already on the bench.

Choose the battery option

The battery option is on the Atlas and Magnum product pages. The charge controller for the Magnum has its own page.

AtlasMagnumCharge controller