Battery

Halfords

Code: Type 063

It is on their computer system if you cant remember and need to ask them. Also remember there is a SELOC discount for all members at Halfords - check the benefits pages for instructions.

They might offer to fit it, but after checking their computer they'll find a warning that they've had problems with Elise immobilisers, and then decline to fit it for you. Alledgedly the problem was on early S1's, following the handbook procedure for S2's certainly produced no problems at all.

S2 K-series Fitting

The procedure is described in the Owners Handbook and is pretty self explanatory:

1. Undo the retaining clamp at the base of the battery (6mm allen key required), and slide the battery out of the retaining shoe so you have easy access to the terminals. If you're doing this on your own - loosen the negative black earth cable nut slightly BUT DONT DISCONNECT IT JUST YET.

2. Turn all lights, radios, satnav etc equipment off.

3. Turn the ignition off and wait about 10 seconds for the engine management system to settle down.

4. DONT arm the alarm or immoboliser

5. Within 25 seconds of turning off the ignition (ie before the immobiliser/alarm kicks in), disconnect the negative black earth cable from the battery.

6. Disconnect the positive red cable from the battery.

7. Swap the old battery out, transfer the terminal connectors to the new battery, put the new battery into the boot so you can work on it to reconnect the terminal cables.

8. Connect the positive red cable to the new battery.

9. Connect the negative black cable to the new battery (have the keyfob to hand just in case the alarm goes off)

10. Slide it back into the retaining shoe, refit the 6mm clamp.