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Range anxiety? Go further! Bring a 14Ah spare battery or upgrade your existing one and ride all day. Stow your spare battery in a pannier bag on the rear rack and you never have to worry about running out of battery again. Note: this is only compatible with 2020 Surface 604 eBikes.
Range anxiety? Go further! Get high capacity 10AH battery and ride all day! Note that this is a 48v battery and is not compatible with the original Surface604 Boar E350.