How long should a battery last without starting? (1 Viewer)

Joined
Sep 20, 2005
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241
Location
Boulder, CO
I got a commuter car, so the Land Cruiser has been sitting for a couple weeks at a time between uses. I've been finding that if it's more than about ten days, the battery is too low to start the truck. Sometimes it clicks, tonight it's a little cool out (ten degrees) and it didn't even do that much.

So I'm thinking it's probably new battery time. Or is there something in these trucks using power that I can expect to drain the batter in that timeframe?
 
Joined
Mar 4, 2012
Messages
475
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South OC
Your battery will not last long if you let it 'cycle' like that. 10 times or so and it's toast, maybe less.

Tender is a great idea. I use a Ctek 3300 multi US, I like the fact it comes with a harness to make plugging in/unplugging very easy.
 
Joined
Sep 20, 2005
Messages
241
Location
Boulder, CO
Sounds like a tender is the way to go. Thanks for the suggestion, I hadn't thought of that.

I park about fifteen or twenty feet from the garage, so it seems like I've got two options. I saw where someone installed the tender in the engine bay of their Miata and put the cord through the bumper. That seemed nice and easy. The other option would be to keep the tender in the garage, put quick disconnects on the battery, and get an extension for the tender cord. The first exposes the tender to the elements, but I found one that's waterproof and spark proof, so it seems like it'd be fine. The second it seems like I'd have to turn off the tender in the garage, or be careful about not shorting the leads when they're left behind.

Any thoughts about which option is better?
 

Sandroad

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Joined
Jan 31, 2009
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3,198
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Michigan
Tender is a good idea. But FWIW, you may want to consider a new battery too because a battery in good condition should be able to start the truck after only 10 days.
 
Joined
Sep 25, 2011
Messages
27
Location
Overland Park, Kansas
I have a 4Runner that I drive once every month or two and got tired of having a weak or dead battery.
So now I just leave the negative battery cable unhooked and hook it up only when I need to drive it.
This has been working great for me
 
Joined
Feb 9, 2013
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2,905
Location
Colorado
You truck should start fine after sitting for ten days, but that's assuming it was locked and parked with a fully charged healthy battery. Most units come with a quick disconnect so you can just leave the leads on the battery and unplug quickly.
 
Joined
Apr 20, 2013
Messages
907
Location
Seattle, WA / Homer, AK / Reykjavik, IS
I have a 4Runner that I drive once every month or two and got tired of having a weak or dead battery.
So now I just leave the negative battery cable unhooked and hook it up only when I need to drive it.
This has been working great for me
I left my 100 at an airport in small town Alaska for 6 months. Disconnected the negative cable when I parked it. When I returned I connected it back up and started the car no issue.
 
Joined
Mar 2, 2009
Messages
701
Location
Newcastle, CA
what battery are you running? the stock panasonic or other?

we have 4 vehicles and it's not uncommon for our 100 to sit for 1wk-3mo without use. the 10yr old Panasonic didn't like this after a really hot Summer a few years ago, but the Duralast Gold I replaced it with hasn't had any issues with this type of use. starts right up after 2mo sitting no matter what time of year in CA.

trickle charger and battery tenders are both easy to use for something like this. the issue of weather and keeping it plugged in all the time would be an issue to research in case something can go wrong. i like the idea of a solar trickle charger for something like this.
 

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