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Old 11-06-2018, 08:07 AM   #3
Philip
Junior Member
Philip will become famous soon enough
 
Join Date: Sep 2005
Location: Auckland, New Zealand.
Posts: 81
5 yr Member
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The Ninebot by Segway KickScooter ES4 is identical to the ES2, except for the presence of the Extra Battery Pack.

That is, you can convert the ES2 into an ES4 by (buying and) fitting the Extra Battery pack. Equally, you can turn an ES4 into an ES2 by removing the Extra Battery pack. The ES4 comes with the Extra Battery pack in the box. The ES2 does not, but the Extra Battery pack is available for purchase separately.

The Extra Battery pack has a charge port and a data communications port, so the ES2/4 can tell if there is a pack attached or not, and alter power output of the motor and performance of the KickScooter accordingly.

Regarding the off performance of your device, if it is under warranty I suggest getting in touch with the business that you purchased it from.
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