Just a heads up guys, I was using an optimate charger. Purchased because I was told that they were the best option. My 12v leisure battery ( 3 months into its 5 year warranty ) went flat at the last meeting. Charged it on the Optimate until the charged light was lit. Took it to halfords for testing on their Bosch anayalyser, battery fine but low voltage. Contacted the supplier and he told me that the optimate type chargers are great for keeping a charge in motorbikes etc over winter but cut off far too early for leisure batteries. He said that they often get this problem and batteries returned that are faultless. Over a period of time the charge becomes less and less with use. Charged it on my Hyperion and retested at Halfords. All now as new. I may of course have a faulty Optimate but it worked fine when i used it on my mower. Hope this helps.
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