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Second battery?
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Second battery?
I don't have a driveway so no way to charge my battery. So would it make sense to buy a second battery then swap them over every month so that one can be charged while the other is in the car? I don't use the car that often so don't want to be stuck with a flat battery.
As you can't open the boot once the battery is removed (for charging)I thought this might be a good solution. I do have the ski hatch though. But it sounds like this is a very awkward way to access the boot catch?
As you can't open the boot once the battery is removed (for charging)I thought this might be a good solution. I do have the ski hatch though. But it sounds like this is a very awkward way to access the boot catch?
- Reamesy
- Member
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- Joined: Mon Aug 31, 2020 12:40 pm
- Location: Whitchurch
Second battery?
If your new battery is good and the car has no issues then it should start no problem after a month
Currently; 2011 E89 23i SDrive M Sport Highline Titan Silver
Previously;
2014 SLK250CDI AMG Sport
2012 E89 SDrive 2.0 M Sport. White
2011 Audi TT Quattro
2006 Z4 2.5 Sport
2013 420D coupe
2002 Z3 2.2 Sport
1996 Z3 1.9
Previously;
2014 SLK250CDI AMG Sport
2012 E89 SDrive 2.0 M Sport. White
2011 Audi TT Quattro
2006 Z4 2.5 Sport
2013 420D coupe
2002 Z3 2.2 Sport
1996 Z3 1.9
- B21
- Lifer
- Posts: 5549
- Joined: Tue Oct 05, 2021 7:15 pm
- Location: In my Banana Yellow Space Shuttle...somewhere over Southern Caledonia
Second battery?
The issue is that with ever swap you then need to re-register the battery..a bit off faff..
You could take the battery out and lock the car manually..
Then manually unlock the car..pop the bonnet..momentarily use the jump connector to give power to release the boot then re-attach battery etc..
Obviously fraught with f€£k up issues..
You could take the battery out and lock the car manually..
Then manually unlock the car..pop the bonnet..momentarily use the jump connector to give power to release the boot then re-attach battery etc..
Obviously fraught with f€£k up issues..
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
A very modified Atacama Yellow 35is
A very modified Atacama Yellow 35is
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- Lifer
- Posts: 5549
- Joined: Tue Oct 05, 2021 7:15 pm
- Location: In my Banana Yellow Space Shuttle...somewhere over Southern Caledonia
Second battery?
Battery is good for 6 weeks but relies on it being fully charged to start with..
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
A very modified Atacama Yellow 35is
A very modified Atacama Yellow 35is
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- Member
- Posts: 90
- Joined: Tue Feb 20, 2024 1:10 pm
Second battery?
I've got the BimmerLink app so it's only a couple of minutes to re-register the battery each time. But if you keep doing this does it screw up the electronics?
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- Lifer
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- Location: Stourbridge
Second battery?
Why not drop solar panel in window and run to battery.
All you need is something pushing electrons the right way around.
100w panel for £50.
All you need is something pushing electrons the right way around.
100w panel for £50.
- Mr Tidy
- Legend
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- Joined: Wed Jul 02, 2014 12:18 pm
- Location: North West Surrey
Second battery?
Solar panel sounds like a good idea, but the easiest option might be to just use the car a bit more often and get more fun out of it!
Coupes because stunning!
Current - Silver Grey MC, Imola Red heated Nappa & carbon trim. Aeros, H & R Coil-overs, 224s, OE Strut brace, Nav, cup-holders, DSP Hi-Fi, pdc, cruise, MFSW, no CDV! E90 330i daily
Gone - Montego Blue
Gone - Ruby Black
Current - Silver Grey MC, Imola Red heated Nappa & carbon trim. Aeros, H & R Coil-overs, 224s, OE Strut brace, Nav, cup-holders, DSP Hi-Fi, pdc, cruise, MFSW, no CDV! E90 330i daily
Gone - Montego Blue
Gone - Ruby Black
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- Lifer
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- Location: Spaldingski
Second battery?
Sounds like a good idea to me. Don't see an issue with multiple re-registering.JakeS76 wrote: ↑Sat Apr 27, 2024 1:58 pm I don't have a driveway so no way to charge my battery. So would it make sense to buy a second battery then swap them over every month so that one can be charged while the other is in the car? I don't use the car that often so don't want to be stuck with a flat battery.
As you can't open the boot once the battery is removed (for charging)I thought this might be a good solution. I do have the ski hatch though. But it sounds like this is a very awkward way to access the boot catch?
If you buy a duplicate of the existing one, I am not convinced you would need to keep re-registering them, either.
Bit of a ball-ache keep lugging heavy batteries around, though.
All good things come to those who wait. I'm really impatient which explains a lot.
F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!
F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!
- Big Andra
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- Location: Scotland/Glasgow
Second battery?
This is what I do with my van as it can sometimes sit for a couple of weeks without turning a wheel. It works a treat.
2009 E89 2.5 Alpine white.
- DonDon
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- Location: North Hampshire - the original and best
Second battery?
Just to reiterate - the battery is always charged via the red terminal in the engine bay (near the windscreen) and a ground connection, not via the boot.
Last edited by DonDon on Sun Apr 28, 2024 3:42 pm, edited 1 time in total.
2013 E89 28i auto
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Second battery?
Solar panel solution works really well for motorbikes in my experience! In your shoes this is what I’d do. Or, lend the keys to a pal once a month! That’s what I used to do with the Vette.
2010 E89 35i — turbo boat hooligan - viewtopic.php?t=131886
2008 Ducati 1098S — two wheeled nightmare
2008 Ducati 1098S — two wheeled nightmare
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Second battery?
I would avoid frequently disconnecting and reconnecting the battery option. In my experience the FRM module doesn't like it. and can be killed. It's not an inexpensive item. Just run a cable from the house to the car and bring it up under the car to the terminals in the bonnet. Make it a ground fault outlet and it will be safe.
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- Lifer
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Second battery?
javis20 wrote: ↑Tue Apr 30, 2024 1:54 am I would avoid frequently disconnecting and reconnecting the battery option. In my experience the FRM module doesn't like it. and can be killed. It's not an inexpensive item. Just run a cable from the house to the car and bring it up under the car to the terminals in the bonnet. Make it a ground fault outlet and it will be safe.
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
A very modified Atacama Yellow 35is
A very modified Atacama Yellow 35is
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- Member
- Posts: 90
- Joined: Tue Feb 20, 2024 1:10 pm
Second battery?
Thanks everyone. My car isn't parked where I can run a cable to it, so either driving it more often or getting a solar trickle charger looks the best option.
Would an AA solar charger that plugs into the OBD2 socket work ok?
Would an AA solar charger that plugs into the OBD2 socket work ok?
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