Top critical review
OBDII connector NOT SAFE
Reviewed in Australia on 3 October 2020
The ODBII connector has zero safety protection as compared with other cheap alternatives.
It has no diode protection for reverse current flow. It would potentially surge reverse current flow when your existing battery has higher voltage than your supply. Potentially melting the connector, fuse, or existing wirings.
No reverse polarity protection. Potentially damaging your ecu due to reverse polarity.
I bought it because I trusted Noco brand. But it disappoint, and would not buy any of their other products— this is a simple device not even done right nor in par with cheap once.