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battery labelled DO NOT JUMP START

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terry paget:
Friend of mine has a small Kia, with a battery labelled DO NOT JUMP START. He reckons his car cannot be jump started, I reckon it means his battery is too small to jump start another car. Who is right?

Lazydocker:
Read the manual  ;)

For about 18 months there was a directive to “Apply no exterior power” to all new BMW diesels. Not sure why, believe it was because of the risk of a power spike.

Andy B:

--- Quote from: Lazydocker on 18 November 2017, 08:40:08 ---Read the manual  ;)

For about 18 months there was a directive to “Apply no exterior power” to all new BMW diesels. Not sure why, believe it was because of the risk of a power spike.

--- End quote ---

The Mercedes forum seem petrified of jump starting a Merc, often quoting 'power spikes'. The expert indies though are apparently exempt when using their jumper/booster packs  ::)
Won't the very presence of a battery on the 'jumpee' prevent a 'power spike'?  :-\

Nick W:

--- Quote from: Andy B on 18 November 2017, 08:59:16 ---
The Mercedes forum seem petrified of jump starting a Merc, often quoting 'power spikes'. The expert indies though are apparently exempt when using their jumper/booster packs  ::)
Won't the very presence of a battery on the 'jumpee' prevent a 'power spike'?  :-\

--- End quote ---


Ferraris were the same, with customers frightened into having their shiny underused toy recovered back to the dealer just because the battery was flat again. So you'd struggle for ages getting it out of the garage and onto the truck, and the same unloading it. Once the paperwork was done, the yardman would the start it with same booster you have and park it normally. A complete waste of everyone's time, which could normally be solved with regular use of a £50 smart charger.

Doctor Gollum:
With BMWs they should be jumped via the engine bay terminals or risk blowing a relay pack in the rear fusebox ;)

Most vehicles with remote mounted batteries have this requirement and the appropriate terminals clearly identified in the engine bay :y

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