Known problems › Electric bikes
4 sourced reports, with what to check before you buy. Each one links to the page it was reported on.
A 2020 C20 stored 3-4 years will not charge past 31.1V; the display then shows error E002.
What to check. A C20 battery left unused for years may fail to charge properly and trigger error E002; the pack and charger should be checked before relying on the bike.
Reported on: otvet.mail.ru
An owner reports voltage sag from 40V to 35V under load; the reply diagnoses unbalanced cells that withhold full capacity.
What to check. If a C20 battery reads well below ~40V right after a full charge, the pack is likely unbalanced and will not deliver rated range; expect reduced capacity and possible early replacement.
Reported on: electrotransport.ru
A buyer review reports the battery lock falls apart in the third week of use.
What to check. The battery lock is a common early-failure point; if it fails the battery is not held securely and may need a frame strap or replacement lock.
Reported on: reviews.yandex.ru
A review site warns the battery lock tab breaks and the battery can eject when riding over curbs.
What to check. The removable battery's locking tab is fragile; if it breaks the battery can detach mid-ride. Owners patch it by strapping the battery to the frame.
Reported on: electropowerbikes.com
Kriko reads a listing and tells you which of these apply to that exact product. It runs on your computer, needs no account and is free.
These reports come from the pages linked under each item: owner forums, repair guides and workshops. They are not a diagnosis of any one unit, and a careful check of the one you are buying still applies.
Text from the Kriko Electric bikes catalog, version 0.1.1, under the CC-BY-SA-4.0 license.
