I'm assuming all he did to test the battery was put a multimeter across the terminals and measured the voltage while the engine was running and it read somewhere around the 14V mark, so he came to the conclusion it was charging, which means that the reg/rec unit is/was working at that point. (Anyway I'd expect to see the engine warning light on if it was the reg/rect.)

I'm not sure though how your AA man worked out the battery was "full" from this, even measuring battery voltage with engine not running? It might (and I stress might!) be that you're battery is goosed (shorting plates, tired electrolyte, intermittent connections between cells from vibration and/or age); you really need to check the voltage at intervals after the engine is switched off and see how fast the voltage drops to check it's condition, or use a hydrometer. It may well show 13+V straight after the engine's stopped running, but it could drop to 11V in a matter of a few hours.

My Ten is a 2008 model and I'm beginning to get the feeling, after nearly four years, that the battery is labouring now and certainly won't make another winter. I guess all us 2008 owners are going to be looking for batteries sometime soon as four years is about par, particularly if they've had a hard life.

Anyway, just my 2p worth, chin up, it doesn't sound too bad...

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