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Intro Internal resistance ( IR ) is an opposition against the current flow in a lithium-ion battery while it is in operation, and it is an important technical index to measure the performance of a battery.  A large amount of internal resistance turns a part of the energy into heat. This becomes a factor for…

Who hasn’t faced the unfortunate situation where their car battery dies and there’s nobody to help. In such a difficult time you wonder why they haven’t invented a solution. The good news is that there’s a solution – a portable car jump starter. There was a time when car jump starters used to be heavy…

K-Line (ISO 9141) is a communication protocol primarily used in automotive diagnostics, allowing a scan tool or ECU to communicate with a vehicle’s onboard systems. It’s commonly found in OBD-II systems, particularly in older European and Asian vehicles. Key Features of K-Line (ISO 9141) ISO 9141 vs. Other Protocols Hardware & Interface Applications Breaking it…