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Home > Technical > "Dead" key battery (2005/2008 type one)

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verydisco

Member Since: 07 Apr 2006
Location: The South
Posts: 75

"Dead" key battery (2005/2008 type one)

Hi

On my friend's 2.7L RRS, one of his key is completly dead as it has never been used.

Would simply putting it in the lock and clicking it one position 1 recharge it or is it dead for good?

Anyone knows if key batteries charge as soon as position 1 is reached or if the engine has to be running ?

tx

Thu Apr 23 2015 10:14am

Lost for Words

Member Since: 15 Jan 2015
Location: Warminster, Wiltshire
Posts: 1477

Tape it to the other key and go for a long drive. Visiting from DISCO3.CO.UK
2006 Discovery 3 TDV6 Auto HSE Zambezi Silver

Thu Apr 23 2015 11:35am

verydisco

Member Since: 07 Apr 2006
Location: The South
Posts: 75

I understand you mean with the dead one in the lock and the working one taped to it to ok the electronics, right?
Cheers

Thu Apr 23 2015 11:37am

Lost for Words

Member Since: 15 Jan 2015
Location: Warminster, Wiltshire
Posts: 1477

No, I meant the other way round. Visiting from DISCO3.CO.UK
2006 Discovery 3 TDV6 Auto HSE Zambezi Silver

Thu Apr 23 2015 11:38am

verydisco

Member Since: 07 Apr 2006
Location: The South
Posts: 75

Well how is the dead one going to recharge if it is not connected via the blade?

unless they do not charge via the blade but by induction???

Thu Apr 23 2015 11:41am

Lost for Words

Member Since: 15 Jan 2015
Location: Warminster, Wiltshire
Posts: 1477

They do indeed use the hall effect to charge. Visiting from DISCO3.CO.UK
2006 Discovery 3 TDV6 Auto HSE Zambezi Silver

Thu Apr 23 2015 11:43am

verydisco

Member Since: 07 Apr 2006
Location: The South
Posts: 75

Thanks for the input Hope it helps others too

Thu Apr 23 2015 11:47am

Ian.H

Member Since: 04 Oct 2014
Location: England
Posts: 180

2008 Range Rover Sport TDV8 HST Java Black

If you have an electric toothbrush.. put the toothbrush on charge and rest the key against it / the charging base.. I've found this worked for my old BMW E46 key in the past for a similar reason.

Cheers..

Ian

Thu Apr 23 2015 11:48am

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