Done 
Bl**dy hell Jeff. I paid almost £100 for my charger. Yup Ive been done alright lol 
I won't go into Battery mode, but Go to Halfords, spend £30 on a fully automatic charger, it charges you battery to full capacity, then switches to trickle charge and maintaines the full charge of your battery, you can leave it connected even while you go on 2 weeks holiday, without fear of over charging your battery.
Squeaky, your running your battery to flat all the time, keep it topped up more often.
I promise you and everyone on this forum, this charger will cover everything we need from a charger, to keep your batteries in tip top condition.
But a message to some of you guy's, it won't charge your battery, if you don't connect it to the charger, a battery has to be looked after, if you want to keep using it.
I have one battery that is 8 years old and still going strong, but if your batteries last you 3 years, then you had a good battery and you looked after it.