Was woken at 3am to an alarm that wouldn't go off.  I finally ripped off the side plate (fucking thing was screwed on) and pulled the master fuse and it still went off two or three more times (wtf?).  I thought pulling the fuse did it, but checking the voltage (6.5) I'm thinking it just ran out of power 

So I check the fuses and terminals (a little corroded) and clean them up and I was going to put it back together and see what happens when I think I might grab one of those battery fighters while its all in pieces...
A quick trip to the local store and I find a 750mHa 12v Battery fighter, but then I wonder if 750mHa is enough or should I get them to order in the 1.25A model which they didn't have in stock (BECAUSE I'M FUCKING JINXED!!!)?  So what difference will the extra few mA make and what is the difference - slower to charge?  Would 750mHa still be okay to use on a car battery if I wanted?

I've already charged it (normal charger) so this is just an added measure.  Oh, and I'm aware theat I may need to buy a new battery soon...

I got mine from this guy, good to deal with.

Does the car at 3.6 Ah and the bike setting is 800mAh.

A bit dearer than some, but a highly reccomended charger and a 5 year warranty .

Can be left on long term.

 

cgi.ebay.com.au/CTEK-XS-3600-CAR-BATTERY-CHARGER-CARAVAN-CAMPING-4WD_W0QQitemZ280354067922

The 750mA battery fighter should be ok for your bike, but it's a bit under powered for your car and definatly for a diesel battery.
The thing to remember is that its the floating charge (the charge the unit gives to your battery after its fully charged) that is the most important part of the charge cycle.
You can charge your battery at 3 -5 amps no probs, but a battery fighter that give greater than 500mA as a floating charge will stuff up your battery in the long run.

I've run battery fighter on my FXDX since new, its still on the original battery which is virtually brand new in its performance, my unit has a floating charge of 150mA.