This is a battery replacement service only. We do not test the transponder or give any guarantee the transponder will function correctly with a new battery. We do not offer a refund if the new battery does not fix the problem with your transponder.

How it works:

• First purchase the service.
• Then post your transponder to us with a copy of the PayPal payment or a note of the PayPal reference.

Postal Address:

Kart Crazy

21 Spitfire Way

Hamble

Southampton

SO31 4RT

NOTE FOR NON-UK CUSTOMERS- your defective transponder does not have any value. If you put a value of a new replacement on the customs label we will be invoiced for UK import duty, which is about £50. I will reject the bill and the transponder will be returned to you which will take several weeks. Therefore please remember a defective transponder has very little (under £5) value and fill in the customs form appropriately.

NOTE: when we return your transponder it can only be insured for the cost of repair, not the value of a replacement transponder.