Battery 'Maintainer' VS. 'Tender'?
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Registered User
Joined: Apr 2009
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From: CA
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Battery 'Maintainer' VS. 'Tender'?
Hey guys!
Will be leaving the 911S undriven for a few weeks... which do you recommend and what exactly is the difference between a Tender and a Maintainer?
My local stealer has the Maintainer. Should I hunt for the Tender?
Many thanks!
Will be leaving the 911S undriven for a few weeks... which do you recommend and what exactly is the difference between a Tender and a Maintainer?
My local stealer has the Maintainer. Should I hunt for the Tender?
Many thanks!
Registered User
Joined: Oct 2004
Posts: 1,224
From: Oregon
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Interested to know as well.
On a similar note, can anybody tell me how long it is ok to leave the car undriven before you need to hook a mantainer/tender to it? I know that it may depend on how old the battery is, outside air temperature, etc. but on average, how many weeks before I'll run into trouble.
Thanks in advance.
On a similar note, can anybody tell me how long it is ok to leave the car undriven before you need to hook a mantainer/tender to it? I know that it may depend on how old the battery is, outside air temperature, etc. but on average, how many weeks before I'll run into trouble.
Thanks in advance.
Registered User
Joined: Sep 2004
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From: SF Bay Area, CA
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Six of one, half a dozen of the other. I have used for years a Battery Tender Jr. (about $25 at Amazon).
If you keep the car parked for 10 days you should condition the battery with one of these units.
If you keep the car parked for 10 days you should condition the battery with one of these units.
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http://www.harborfreight.com/cpi/cta...emnumber=42292
$5 and work great. I have them all over my garage.
$5 and work great. I have them all over my garage.
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damon@tirerack.com
877-522-8473 ext. 4643
574-287-2345 ext. 4643
**Don't forget to add my name to online orders!**
Or use this link:
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Registered User
Joined: Jan 2009
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From: S Florida
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The best battery charger IMHO is the Yuasa Smartshot 1.5 amp by far! It is way more robustly built than the others, don't forget Yuasa makes batteries.
They cost around 50 bucks. I use one with a cigarette lighter attachment and it works great.
Do the research and you will see that I am right.
They cost around 50 bucks. I use one with a cigarette lighter attachment and it works great.
Do the research and you will see that I am right.
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Wow, really? 10 days of not driving and I probably need to plug her in? I better get one pretty soon. Thanks for the info.
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I plug mine in for the weekends, it is amazing that it needs to be charged longer then one would imagine.
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If you're going to wait longer, leave your hood popped.
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So I picked up a Ctek 3600 and charged up my battery... Do you guys leave it connected? The warnings in the manual about hydrogen gas, well ventilated area, etc... kinda freaked me out. Now I feel like I don't want to leave it connected while I'm out of town.
Registered User
Joined: Apr 2006
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From: Austin
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Read up on what these maintainers do - after battery reaches charged state, maintainer cycles on and off to trickle state to keep charged up. I've used on bikes, and 3 different P-cars in a closed garage - never an issue with venting.
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Joined: Apr 2006
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From: Austin
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If you waited too long to hook up the battery mainitainer and the battery dies with the hood closed you have to use an alternative method to pop the hood and get to the battery.
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Ironically, it was the fact that I was reading up on them that led me to my concern, but yes, I get that despite the warnings from Ctek, the manufacturer also claims that it will pulse after it detects that charge is complete
