A battery cable can be purchased at many stores. Canadian Tire, Home Depot, Walmart and Costco. They can also be purchased at many gas and automotive stations.
You will need to drill a hole large enough for the cable being very careful not to damage anything on the other side of the firewall. You will need to purchase a rubber grommet to insert into the hole and then run the cable through to protect the cable. You only need to run one cable, as you can ground the negative cable near the battery. Why are you running a battery cable through the firewall in the first place?
One can purchase a BMW diagnostic cable from several different places. Some of the places in which one can purchase a BMW diagnostic cable are: Amazon, Target, and Walmart.
One can purchase a CR123A battery from a number of online and physical sources. For example, Amazon is just one online option to purchase the CR123A battery.
One can purchase the 2032 battery from Walmart where it is available for $11.54. One can also purchase this battery from Amazon, eBay, CVS and in the UK from Argos.
One can purchase a 25 foot VGA cable from FireFold, Walmart, and Target. One can also purchase a 25 foot VGA cable from OutletPC, Monoprice, and Parts Express.
No, not from something pulling power from the battery. A battery that runs down with one cable disconnected has a dead cell and must be replaced.
One can purchase an Inspiron 600 M battery from many different places. One may purchase this battery from the official Dell website or sites such as Amazon and eBay.
To hook up jumper cables, attach one cable from the negative post on one battery to the negative post on the other battery. (These usually are marked "-" and have a blacl cable attached to them.) Attach the other jumper cable from the positive post on one battery to the positive post on the other battery. (These usually are marked "+" and have a red cable attached to them.)
There are a number of places where one can purchase a battery charger for their solar car. Any good battery store will sell them. You can also purchase them online from sites such as eBay, Car Battery Chargers Central and Battery Stuff.
Disconnect the negative cable and connect (insert) an ammeter between the battery and the battery cable. Remove the fuses one by one and see which causes the current draw to drop.
There are typically two cables, one is usually red and the other black. The black cable attaches to the negative terminal on the battery and the red wire connects to the positive terminal on the battery. When removing the battery from the vehicle always remove the negative cable from the battery first. When installing the new battery always connect the negative cable to the battery last.
One can order a car battery cable online via one of the auto parts websites such as Auto Zone or Advance Auto Parts. Battery cables are also often listed on eBay.