Leaving P38 Diesel with no battery for the weekend... Possible effects?

If the windows arnt set and you press the up button it won't stop or crush fingers but if set motors cut out , I always thought ...

Clarky130 said:

I hear everyone saying 'Don't connect a charger with battery disconnected' - but no-one seems to know WHY you can't do that....?

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Because the battery itself pulls the charger voltage down to something reasonable, many older chargers supply 15-17 volts unloaded, they are also often only half wave rectified - again not something the car's electronics would "notice" when a battery is connected supplying voltage during the "dead" inverted phase. In essence, the power supplied by many battery chargers is far too dirty for modern cars, the battery acts as a damper cleaning the power supply up.

defender300td1 said:

If the windows arnt set and you press the up button it won't stop or crush fingers but if set motors cut out , I always thought ...

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you are correct if they are set and something puts pressure on the window it will automatically stop and go down

defender300td1 said:

If the windows arnt set and you press the up button it won't stop or crush fingers but if set motors cut out , I always thought ...

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Yeah it's to set the anti trap. Personally with the drivers window in particular, i would prefer, if anyone tried to reach in to do harm, to be able cut their bloody hands off at the wrists.

wammers said:

Yeah it's to set the anti trap. Personally with the drivers window in particular, i would prefer, if anyone tried to reach in to do harm, to be able cut their bloody hands off at the wrists.

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never thought of that

Page 66 in handbook

Clarky if you have re-sync problems give me a shout i have sync mate and don't think you too far from me.

kaisermax said:

Clarky if you have re-sync problems give me a shout i have sync mate and don't think you too far from me.

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Nice one Kaiser, cheers

No worries just pm me if needed all the best enjoy your trip

Just re-connected the battery after a week off, no issues at all.