I'm wanting to add a lithium ion battery in a storage area of my boat dedicated only to a depth finder. I have 2 questions. 1, Does the battery have to be grounded? If so, how? 2. Do lithium ion batteries need to be vented?
I am wanting to purchase a manual for my 90 HP Mercury, but evidently I need the serial number on the motor to order one. I am not sure where to locate the number. Can someone help me locate the serial number?
