My new battery monitor reports 100% full battery as pic below. My trickle charger is showing still on charge and indicates battery not "full". When fully charged what reading should it show? I have a multi meter somewhere so could check if I can find it!

Click image to enlarge

Just let charger complete its cycle I would Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
New Defender D300 90 on order.
1974 Series 3 Lightweight = "Millie"
My preferred specialist: www.glenrands.co.uk
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Thanks Dr Rob, yes i leave it on the trickle charge anyway when not using it, now at 13.4. I'm surprised at drop when you just open the doors and lights come on, I've had warning lights come on even when battery doesn't seem that low. Are they that sensitive? 2009 Range Rover Vogue 3.6TDV8, Bournville, Parchment/Navy
2005 Jaguar XJ350 3.0 V6 Sovereign, Jaguar Racing Green, Ivory
1997 TVR Chimaera 450, Formula Red, Grey

Yes especially when battery is getting old...fitting LED interior bulbs helps Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
New Defender D300 90 on order.
1974 Series 3 Lightweight = "Millie"
My preferred specialist: www.glenrands.co.uk
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Battery is less than 12 months old, was fitted by Land Rover before I bought the car. Could this be faulty at all?? It seems to hold charge when left, doesn't drop over a few days. 2009 Range Rover Vogue 3.6TDV8, Bournville, Parchment/Navy
2005 Jaguar XJ350 3.0 V6 Sovereign, Jaguar Racing Green, Ivory
1997 TVR Chimaera 450, Formula Red, Grey