Seems to be the crap we buy, all we can buy as everything is made over there is failing out the box. My replacement Streamlight Lithium batteries just arrived from Amazon.
Dead on arrival and no ability to take a charge, plug in voltage gauge as the Mercedes has no meter or gauge. Reads 17volts at idle and falls to 6 volts at 2,000 rpms.
Autozone test light. Looked to be a fail but I put the alligator clip on + and the needle on - and it worked....
Shoddy workmanship I can handle. Crap that flat doesn't work pisses me off.