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Hi, I have been having problems with my battery going flat over a week in our Boxer van. It is a 2007 Motorhome on a SWB Boxer Chassis. The engine is a 100 HP 2.2 hdi.

I know that these vans are known for flattening batteries over a few weeks but mine seems to be worse that it used to be. The battery is one year old.

With everything switched off and a fully charged battery I have measured 0.41 amps.

If I leave the battery disconnected after fully charging the battery, I can start the engine with no real problem after a week but if I leave the battery connected and it is dead.

If I work out the total current over a week, I get 7 x 24 x 0.41 = 70 amp/ hours and the battery is (I think ) about 110 amp hr.

Any suggestions as to whether I have an electrical fault or a dud battery.
 

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Max drain should be no more than 0.02 amps. Slightly higher for later models but 0.4 will definitely drain the battery, as you have found out !
Easiest but not exactly quick is when testing the drain remove one fuse at a time from the fuse boxes and see if the drain returns to around 0.02 amps.If it does then repeat with the rest of the fuses in case any components share the same fuse. Not exact but it will give you a rough area to start if you look to see which components this fuse feeds.
 

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Discussion Starter #3
Thanks

Max drain should be no more than 0.02 amps. Slightly higher for later models but 0.4 will definitely drain the battery, as you have found out !
Easiest but not exactly quick is when testing the drain remove one fuse at a time from the fuse boxes and see if the drain returns to around 0.02 amps.If it does then repeat with the rest of the fuses in case any components share the same fuse. Not exact but it will give you a rough area to start if you look to see which components this fuse feeds.
Thanks for the information, much appreciated. As I mentioned in my post, the van is the base unit for our motorhome and when I connect the battery I can here what sound like two or more relays clicking so I think the problem may be linked to the motorhome circuit. I will try dropping that side out first as the van battery can also be used to power the domestic side of the motorhome if the leisure battery gets tired.
 

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I don't know if it is relevant, but I had a similar probllem on my 206, hardly a motorhome....anyway, after performing a reset of the EMU, the quiescent current dropped to an acceptable level. Details and readings can be found here, maybe the same on other Pugs of that age....
 

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Discussion Starter #5
Thanks

I don't know if it is relevant, but I had a similar probllem on my 206, hardly a motorhome....anyway, after performing a reset of the EMU, the quiescent current dropped to an acceptable level. Details and readings can be found here, maybe the same on other Pugs of that age....
Interesting post about the time for the current to drop. Have decided to put the van into dealer as I don't really know what is going on with these Canbus systems and may end up causing another fault by drawing fuses.
 

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Discussion Starter #6
Still no further forward

Max drain should be no more than 0.02 amps. Slightly higher for later models but 0.4 will definitely drain the battery, as you have found out !
Easiest but not exactly quick is when testing the drain remove one fuse at a time from the fuse boxes and see if the drain returns to around 0.02 amps.If it does then repeat with the rest of the fuses in case any components share the same fuse. Not exact but it will give you a rough area to start if you look to see which components this fuse feeds.
Van has been in at the main Peugeot dealers and they are adamant that 0.4 amps is OK and are now saying it may be the battery capacity is down.

I just don't buy the 0.4 amps. If you take 0.4 x 24 hours you get approx 10 amp hours. Over a week that would be 70% of a fully charged 100 AH battery in good nic.

They are putting the battery on a full charge overnight and will let me know tomorrow.

Thanks for all the help.

Regards
John
 

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Long time gone!

I know this thread is very old, but it is a very familiar problem for me too. I have a 2004 Boxer 2.2 HDi. The parasitic drain varies between 130 and 160 milliamps, I have a brand new battery in it. The offending fuses are numbers 39 (interior lighting-EOBD diagnostic socket) and number 34 (chronotachograph, telephone, alarm, remote control, air conditioning control). I don’t have telephone or air conditioning in the van. With these two fuses removed, the drain is 13 milliamps. Fuse 39 draws about 78 milliamps, 34 fluctuates greatly between 35 to 80 milliamps. Any ideas on what this could be will be greatly appreciated.
 
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