Can someone explain simply to me how to stop battery from running low when staying in van

mamajules

Member
Hello, I'm sorry for this basic post. The last time we camped in our van for a couple of nights the battery of the van was flat (we were on EHU/solarfor things inside the van). Anyway I think I read on here a while back that because you sleep in the van - the van thinks its 'in use' as its unlocked etc and therefore the battery is still technically in use (but obviously the motor isn't running). Was I correct in this or have I mis-remembered? And therefore can someone simply explain to me what I should do so this doesnt happen ie do I need to lock the van but unset the van alarm? If so how do I do this please. I'm sorry if I haven't used the right words here and I'm a bit nervous about posting a message in case you think I'm asking a stupid question! But I'd be grateful for a friendly response, Jules x
 
Hello, maybe the main battery of the van is weak. Test it with a charger, do a full charge, then check the voltage. If the voltage drops quickly (for example, from 12.8V to 11.5V) by the next day, then your battery is likely worn out.


You can also test the battery during startup. Use a multimeter and start the engine—if the voltage drops significantly when you start the engine, then your battery is no longer in good condition.
 
Hi Jules,
not a stupid question. Every unlock triggers a few consumers in the car - without running the Van this can add up over a long weekend.

You can install a small charger to prevent it:

Or use every other charger and plug it into the EHU.
 
When we camp we don’t do anything special to maintain the vehicle battery, we normally only camp for ~3 nights but in that time the keys don’t go into the ignition, the doors open and close, we rarely move the van but with the doors opening and closing (rarely the driver door) and the interior lights coming on but we’ve never had an issue. Is your battery ok?
 
Hello, maybe the main battery of the van is weak. Test it with a charger, do a full charge, then check the voltage. If the voltage drops quickly (for example, from 12.8V to 11.5V) by the next day, then your battery is likely worn out.


You can also test the battery during startup. Use a multimeter and start the engine—if the voltage drops significantly when you start the engine, then your battery is no longer in good condition.
Hello thanks for replying xx - the battery was tested and is not weak (the AA person checked it all out for us and said it was in very good condition)
 
Hi Jules,
not a stupid question. Every unlock triggers a few consumers in the car - without running the Van this can add up over a long weekend.

You can install a small charger to prevent it:

Or use every other charger and plug it into the EHU.
Thank you so much for this. So in basic terms does this 'caretake' my battery when I'm not running the engine? And do I just clip it on each time I'm say camping? Thank you xx
 
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A quick and easy solution (and what we used to do) is buy something like a CTEK charger, which plugs into your mains sockets inside the van when you are hooked up. The CTEK then plugs into one of the cigarette sockets in the dash and it charges your starter battery.
 
When we camp we don’t do anything special to maintain the vehicle battery, we normally only camp for ~3 nights but in that time the keys don’t go into the ignition, the doors open and close, we rarely move the van but with the doors opening and closing (rarely the driver door) and the interior lights coming on but we’ve never had an issue. Is your battery ok?
mmm curious - yes battery is in v. good condition - so I'm a bit perplexed as do exactly as you do....I bet there's something very simple that I'm NOT doing/switching off! J x
 
A quick and easy solution (and what we used to do) is buy something like a CTEK charger, which plugs into your mains sockets inside the van when you are hooked up. The CTEK then plugs into one of the cigarette sockets in the dash and it charges your starter battery.
oooh interesting - I will google it - thanks for this (I'm wondering if this does the same kind of thing @Frigo110 suggested but obviously just kept inside on the dash & less scary than me randomly clipping wires under the bonnet :))
 
A free and easy way to reduce engine battery drain when camping is to switch off the auto door opening lights (via the push buttons in the roof centre console). Mine are off most of the year.
 
We do a combo of things from above. Courtesy lights at the front and in the back are turned and we tend not to switch on the ignition / stereo when camped (no need for them as we have a rechargeable stereo bluetooth speaker which works with phones/ipads for music and internet radio as well as acting as a 'soundbar' for decent TV audio. I also carry a small and cheap (IIRC about £16) Lidl 'smart' battery charger in the van and keep an eye on the voltage of the starter battery - if the charge starts to go down after a few days, I plug it into leisure 240V and 12V dash socket for a couple of hours and it's all sorted again. The other option, as recommended by @Drive Wayne s to fit an Ablemail AMT12-2 which will put a trickle charge into the starter battery from the leisure system - I've been contemplating one of those for ages but need a lot of reassurance that wiring it in is an easy DIY job for a simpleton like me.
 

I went down the simple(ton) route with one of these. Never needed to use it so can’t comment on effectiveness.

I always lock the doors at night and turn off courtesy lights.

When touring we normally have a trip out every 3 or 4 days which keeps the battery charged.
 
I should also have said the I keep a charged Noco GBX75 jump starter in the van as well as a just in case. Never used it on any of my cars but it did bail somebody else out when we were in Italy last year. Belt and braces rule OK!
 
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