Recently I’ve got replacement battery for my new ECOO E04 smartphone.
It seemed as original at the first glance. But capacity was too low. It was 1700mAh instead of 3000mAh as listed and not even 2000-2500mAh as it was reported to be on mobile forums.
So I laid down two batteries side by side and they differs a little.
Blue background was shifted to the top and contacts were dark and matt and under cover was no any printed specs.
Beware of this seller on Aliexpress, I’ve got this fake from.
ECOO E04 batteries – fake vs original
cmexonat's blog 