changing your battery without losing the codes.

Ere ya are an idiots guide to changing ya battery without losing all ya codes or having to reset ya windows and whatever other fancy gadgets yu posh twots have in ya bling mobiles..

Step 1 - Set up your secondary power source

• If using a booster/jump pack; Find a stable location in the engine bay in which to site the jump pack where the leads can easily reach the battery terminals. Now clamp the crocodile clips of the booster pack over the leads that connect to the battery. Do not let the two crocodile clips touch each other! Ensure that you connect black to black and red to red. Also ensure that you have secured the crocodile clips to a metallic part of the leads that will not obstruct you whilst taking the leads off of the current battery. If your booster pack has a power switch ensure that it is switched on.
• If using a 12 volt battery and a set of jump leads; Place your 12 volt auxillary battery on the floor next to the vehicle and connect the jump leads to the auxillary battery. Connect the red lead to the positive terminal and the black lead to the negative terminal. Do not let the crocodile clips at the opposite end of the cable touch each other! Now clamp the crocodile clips at the other end of the jump leads over the leads that connect to the battery. Ensure that you connect black to black and red to red. Also ensure that you have secured the crocodile clips to a metallic part of the leads that will not obstruct you whilst taking the leads off of the current battery.

Step 2 - Remove clamp holding your battery in place

Look at your current battery to find out how it is being physically held in place. In many cases there will be a clamp at the base of the battery holding it to the floorpan. In other cases there may be a clamp across the top of the battery holding it in place. Once you have worked out how the battery is being held in place, use your socket set to loosen the bolt(s) on the clamp and remove the clamp.


Step 3 - Remove your old battery

Now that your battery is no longer physically held in place we need to remove the leads from the battery and remove the battery. Locate the bolts on the battery leads that are holding the clamps onto the battery terminals. Using your socket set, loosen the bolts but do not remove them. Now, here comes the important bit... One at a time, starting with the negative lead, remove the leads from your current battery whilst ensuring that the crocodile clips from your auxillary power source remain connected. Once the leads are free from the battery, remove the old battery from the vehicle. Your auxillary power source is now supplying the power to your car until we connect the new battery.


Step 4 - Connect your new battery

Without knocking the leads currently being supplied by the auxillary power source, lower your new battery into place. Now connect the leads onto the new battery - ensuring that you first connect the red to the positive terminal and then the black to the negative terminal. Be careful that you don't knock the crocodile clips off the leads as you manoeuvre them onto the new battery. Now tighen the bolts on the clamps to hold them firmly in place. You can now safely remove your auxillary power source by disconnecting the crocodile clips.

I have used a cigar lighter plug wired to a spare battery and pluged in the cigar lighter socket on cars in the past. My landy has a cigar lighter but many haven't I know.
My landy doesn't need a radio code though, or a battery at the moment cos its broke

one thing to remember is to make sure the clamp(s) are fitted correctly when replacing battery, mine popped off when stationary and caused me hours of grief. can't imagine what would happen if it popped off at speed!!!