SKY Battery-pack with 20700 Li-Ion (?max. Voltage & connector-shape?)

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Hey Matthias,
It is allready available :

Solar Panel Power for SKY - Now Shipping

Click below for 40% Off discount code. Valid for all existing WF customer until May 31, 2019. The discount code ( SOLAR40OFF ) is applied at the checkout step when buying from shop.weatherflow.com. This link should have the code embedded and take you directly to the Solar Power accessory page: https://shop.weatherflow.com/discount/SOLAR40OFF?redirect=%2Fproducts%2Fsolar-power-accessory

Shipping will be ˜ 25$ to Germany… + Tax… maybe a combined order would at least reduce shipping fee… Stay tuned I’m checking with “Zoll”