So I've been on a road trip to Barcelona since the 27th Dec (http://tinyurl.com/qe32tzo), I cheated on my Zed with a Peugeot 308 diesel which has, er.... excellent fuel economy. She's clearly found out and refuses to start.
Went to check on The Shark this morning and she's flat, not even the central locking wants to play, so I CAREFULLY opened her up and not a milliamp inside, even the dome LEDs have gone to sleep.
I noticed about a month ago she was taking more than the usual split second to turn over, so I am assuming small power drains over a week, exceptional cold temps whilst I've been away, a battery of a certain vintage, all combined = no juice.
What's the safest, gentlest way to begin her back? Using only things that can be bought from Halfords - as I need her tomorrow for work. Is it just easier to get a new battery and make the switch? I have no idea how old the current one is, as there's no receipt for it anywhere.
If replacement is the way forward, what SHOULD I be using (any need for genuine Nissan?) or even better, is there anything you can recommend - good for an extra 20bhp? Never replaced one before so please be specific and links would be amazeballz, 2004 DE if it makes any odds.
Thanks