which charger

[Mr Morlock]

MIMXV looks the right advice and price. All you need is a trickle change to keep the battery up to scratch and fast chargers are a no no - can lead to battery damage on an MX5. Why spend $80 when you get something that does to the job for $50. Bursons stand by their products as well- looks a good deal that they give a disc for MX5 clubbers.

[Zcootz]

Yes got me one of these as I accidentally left the interior on my Mazda 2 light on for 2 weeks while i was on holidays - DOH!
Mr RACQ sold me one and it works like a charm. Got me dead flat battery full charged up again. Now I just plug it in using the adapter that sits permanently - its like having a electric car
Solid quality and maybe cheaper to buy online too.

Auto: Fully automatic for optimal charging

12V: For all lead-acid batteries, Step 7: Fully charged battery, Step 8: Maintenance charging, Temperature sensor, COLD/AGM: Charging in cold conditions and AGM batteries, RECOND: Recondition of deeply discharged batteries, SUPPLY: Use the charger as a power supply
http://www.ctek.com/au/en/chargers/MXS%2010

I run one of these as well. They are a pretty smart charger and do all sorts of fancy things to minimize calcification. I had a marine battery die in the boat a while back and I mean completely die, it wouldn't take a charge from the normal charger. Out of intetest I popped my CTek on it and it returned to a usable battery. The battery has been back in service for over a year now.