Success!
Well my suspicions about the battery were correct (thank F*** - I hate wiring and all that lark). I left it on my smart charger again last night and it was showing the 'weak/recovery' light so I put it on my neighbours force charger again and it measured the ampage to have dropped from yesterday
well after a short burst on there I shoved the battery back in and the garage shuddered
god I love the leovinci can. I left it back on my trickle charger again and it was showing it's usual amber charging light....but I still don't trust it.
Which means - I now have to buy a battery, could anyone recommend me a good value choice? Good mix of performance/reliability to moolah or even just tell me what size battery I need so I can get one ordered tomorrow asap!