- Brunner Polarys E-Pack 15 is an 11.1 V lithium-ion battery rated at 15600 mAh / 173 Wh. The manufacturer lists Polarys Freeze DZ and Portafreeze coolers as applications.
Brunner Polarys E-Pack 15 - 173 Wh lithium-ion battery. Brunner Polarys E-Pack 15 is an 11.1 V lithium-ion battery rated at 15600 mAh / 173 Wh. The manufacturer lists Polarys Freeze DZ and Portafreeze coolers as applications.

Key facts
- Technology: Rechargeable lithium-ion.
- Nominal voltage: 11.1 V.
- Maker-listed capacity: 15600 mAh / 173 Wh.
- Device families named by manufacturer: Polarys Freeze DZ / Portafreeze.
- Declared cooling-support duration: Up to 8 h, depending on cooling level.
Construction and use
E-Pack 15 supplies mobile power when a compatible cooler has no conventional power source. This is a battery, not a cooler-and-battery bundle.
Variant details
The maker lists 11.1 V and a capacity of 15600 mAh / 173 Wh. These figures do not state a cooler's daily energy consumption.
Variant details
The maker states cooling can be supported for up to 8 hours, depending on the cooling level. This is not a guaranteed runtime under all conditions.
Variant details
The manufacturer names the Polarys Freeze DZ and Portafreeze families. Check the exact cooler and battery bay before purchase rather than assuming brand-wide compatibility.

Manufacturer photograph
The manufacturer shows E-Pack 15 fitted to a compatible cooler battery bay. This listing is for the battery, not a cooler bundle.
Technical data
| Parameter | Value |
|---|---|
| Technology | Rechargeable lithium-ion |
| Nominal voltage | 11.1 V |
| Maker-listed capacity | 15600 mAh / 173 Wh |
| Device families named by manufacturer | Polarys Freeze DZ / Portafreeze |
| Declared cooling-support duration | Up to 8 h, depending on cooling level |
| Variant EAN | 8022068081038 |
Questions and answers
Which variant is offered?
Brunner Polarys E-Pack 15 - 173 Wh lithium-ion battery.
Which dimensions and data describe this version?
Technology: Rechargeable lithium-ion.
Which code identifies the variant?
The variant EAN is 8022068081038.








