Australian Customers: Due to shipping restrictions, we can send a maximum of 2 batteries via DHL only (no AusPost unfortunately).

21700By Efest

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The Efest 21700 is the Efest 20700's slightly bulkier big brother! Don't be fooled though - this battery is not slow by any measure. It's a great addition for any 700

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Product Specs
Product Name [!!!] Efest 21700
Brand Efest
Nominal Voltage 3.7V
Nominal Capacity 3700mAh
Max. Discharge 35A Continuous
Chemistry IMR
Size 21700