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AMBxx

Member Since: 24 Jul 2016
Location: York
Posts: 1023

2015 Defender 110 Puma 2.2 XS CSW Orkney Grey

Battery failing?

My 110 XS SW is about 18 months olds. About 6 months ago, I left the inside light on and flattened the battery. All appears to work OK, but lately if I start the engine, reverse out of the garage, then turn off, I get a warning sound when I start the engine for the 2nd time.
I understand that this is a battery warning.
Looking at my tracker data, the battery had been dropping down to about 12.2V. Charges at 14V, then drops to about 13-13.5V when stopped again.

Is the battery failing, or is it just the cold weather? Seems like very short battery life, but I may have damaged the battery when it was discharged by the internal light.

28th Dec 2016 2:53pm

custom90

Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20190

The discharge doesn't help but it's normal to get quite a voltage drop.
Even more so in cold weather and doing short trips, starting draws more current and will drain more than anything and twice in a row cold will drop it even further.

I personally wouldn't worry.
My genuine battery is 6+ years old and still going strong, so I doubt it's finished and probably wants a good run with alternator charging current with no other draw on it such as heated seats, lights etc etc. NEVER SURRENDER! ⛽️🛢️👨‍🔧🧰⚙️ RED, WHITE & BOOST! 🇬🇧

28th Dec 2016 4:03pm

LR90XS2011

Member Since: 05 Apr 2011
Location: bickenhill
Posts: 3636

2011 Defender 90 Puma 2.4 XS CSW Galway Green

take it off give it a good shake refit and charge for several hours it will probably be fine for a good few years DEFENDER 90 TDCI XS,

I hope everyone is well and your land rovers make you happy

28th Dec 2016 6:36pm

discomog

Member Since: 09 May 2015
Location: Notts/Lincs Border
Posts: 2525

2015 Defender 90 Puma 2.2 XS CSW Santorini Black

I normally only use my Defender at weekends, occasionally it's left standing for a couple of weeks. When parked up at home I always use a Ctek charger to charge and condition the battery. It's plugged in through the 13 pin tow socket so a doddle to connect.

Defender 90XS SW
Mini Countryman Cooper S
Morgan Plus 8

28th Dec 2016 6:56pm

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