The difference between the D15i and D15 Pro is in terms of the battery pack; while the former gets a single lithium-ion battery, the latter gets an additional VRLA (lead-acid battery).
I am using bike from last one year, service station changing twice in city. Expensive service also no satisfaction. Poor battery performance, no mileage given or not surely dealer gave exact reading. Now charging socket and seat was loose to connect. I have done surgery
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