Battery Tender for extened vacation - Smart Car Forums
User Tag List

 10Likes
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 36 (permalink) Old 06-16-2019, 11:16 AM Thread Starter
 
RickyM's Avatar
 
Join Date: May 2013
Location: Donna, TX
Posts: 245
Thanks: 162
Thanked 101 Times in 56 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 15 Post(s)
Garage
Battery Tender for extened vacation

I have a couple of questions. My kids want me to spend the summer up in Colorado with them. I could be gone 2 to 3 months. I have a battery tender that I will keep on the 12 volt battery. Is there any problem leaving the Smart ED that long without charging the traction battery. Wasn't sure how long before it might discharge too far. 2nd question is they make a cigarette lighter adapter so you can just plug the tender in to that but not sure if it will work on the Smart. Not sure if it's hot with the key off. Thanks in advance.
RickyM is offline  
Sponsored Links
Advertisement
 
post #2 of 36 (permalink) Old 06-16-2019, 12:41 PM
Super Moderator
SCOA Club
 
jimvw57's Avatar
 
Join Date: Sep 2008
Location: southern Minnesota
Posts: 11,084
Thanks: 302
Thanked 1,962 Times in 1,344 Posts
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 789 Post(s)
Garage
port on dash goes out with the key.
jimvw57 is offline  
The Following User Says Thank You to jimvw57 For This Useful Post:
RickyM (06-16-2019)
post #3 of 36 (permalink) Old 06-16-2019, 01:13 PM Thread Starter
 
RickyM's Avatar
 
Join Date: May 2013
Location: Donna, TX
Posts: 245
Thanks: 162
Thanked 101 Times in 56 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 15 Post(s)
Garage
Ok then second questions if I keep the 12 volt battery on tender will the traction battery be ok if not charged for 2 to 3 months.
RickyM is offline  
Sponsored Links
Advertisement
 
post #4 of 36 (permalink) Old 06-16-2019, 01:19 PM
 
Smart Bob's Avatar
 
Join Date: Aug 2008
Location: Monrovia, CA
Posts: 1,461
Thanks: 1,244
Thanked 350 Times in 250 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 175 Post(s)
Garage
Buy a battery tender that has a quick disconnect that you can hardwire to the battery & run the end of the lead around the carpet for easy access.
Yinzer likes this.
Smart Bob is offline  
post #5 of 36 (permalink) Old 06-16-2019, 02:02 PM
 
Join Date: May 2010
Location: Heck and a handbasket...
Posts: 904
Thanks: 13
Thanked 195 Times in 145 Posts
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 69 Post(s)
Garage
Battery Tender...

I installed a Battery Tender on my gas car...


800 milliamps...


Battery Tender 800mAmp 022-0150-DL-WH



Comes with a harness to connect to your battery, I cut the "O" terminals to a "C" for better fit.


It gets a little warm, set it on something metal. Also the latest version turns off after 80 hours, so I use a light timer, on for 23, off for 1 hour...
Bar None likes this.
mattwithcats is offline  
post #6 of 36 (permalink) Old 06-16-2019, 02:27 PM Thread Starter
 
RickyM's Avatar
 
Join Date: May 2013
Location: Donna, TX
Posts: 245
Thanks: 162
Thanked 101 Times in 56 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 15 Post(s)
Garage
Still looking for opinion on the traction battery not being charged for 2 to 3 months.
RickyM is offline  
post #7 of 36 (permalink) Old 06-16-2019, 03:38 PM
 
Join Date: Dec 2012
Location: Arcadia, CA
Posts: 2,723
Thanks: 513
Thanked 283 Times in 250 Posts
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 560 Post(s)
Those EDs sitting on the lots for months, they’re okay. I hope yours will be okay as well...

May research setting it to transport mode, similar to how they’re shipped from Hambach (or wherever the smart ED factory is) to the US.
smark likes this.
jzchen is online now  
post #8 of 36 (permalink) Old 06-16-2019, 04:57 PM
 
smark's Avatar
 
Join Date: Aug 2008
Location: Lenexa Ks.
Posts: 6,750
Thanks: 475
Thanked 1,225 Times in 871 Posts
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 654 Post(s)
Quote:
Originally Posted by jzchen View Post
Those EDs sitting on the lots for months, they’re okay. I hope yours will be okay as well...

May research setting it to transport mode, similar to how they’re shipped from Hambach (or wherever the smart ED factory is) to the US.
How true that is. Some smart cars sit close to many months, unsold. Many new cars do, for months on end.

If it were me, I’d pull the 12volt out of the car. Put it on a work bench. With a battery tender hooked to it. The large EV battery. Just charge it up to full, when you return. Your not going to hurt it, if it’s not untended too.
smark is offline  
post #9 of 36 (permalink) Old 06-16-2019, 07:53 PM
 
Join Date: Mar 2015
Location: Pittsburgh, USA
Posts: 962
Thanks: 11
Thanked 109 Times in 94 Posts
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 370 Post(s)
Ricky,

Yes, the traction pack self-discharges extremely slowly. But then again, the manual (pg 113-114) does state this:

"Avoid storing and transporting the vehicle
at high temperatures for extended periods
of time (e. g. container transport).
When out of use for longer periods of time,
connect the vehicle to a voltage supply.
If the vehicle is not connected to a voltage
supply, it must remain within a tempera-
ture range from -4F (-20 C) to 104F
(40 C) ."


But then again-again, we now know that connecting it "to a voltage supply" (do they mean an EVSE?) when "out of use for an extended period of time" (how long???) is bad advice and Will NOT protect the pack, because even (actually particularly) a full charged traction pack can execute a self-destruct if the 12V battery goes dead.

You can plug the car in for charging too along with the 12V battery tender. (I assume you have only the 120V charging adapter, not a 240 volt charging station?) but this will mean the car will sit through a hot Texas summer at 100% SOC, which can degrade the pack.

As for me. I would just leave the traction pack at about 80 percent SOC and store the car in as cool and shady a spot as you can find. Just be sure the 12V battery is connected to a charger, and have a trusted neighbor periodically check that the battery tender is on and operating. You want a charger that stays on "float" indefinitely and switches back to charging if something discharges the battery.

Last edited by Yinzer; 06-16-2019 at 08:30 PM.
Yinzer is offline  
The Following User Says Thank You to Yinzer For This Useful Post:
RickyM (06-20-2019)
post #10 of 36 (permalink) Old 06-16-2019, 07:57 PM
 
Join Date: Mar 2015
Location: Pittsburgh, USA
Posts: 962
Thanks: 11
Thanked 109 Times in 94 Posts
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 370 Post(s)
Quote:
Originally Posted by smark View Post
If it were me, I’d pull the 12volt out of the car. Put it on a work bench. With a battery tender hooked to it. The large EV battery. Just charge it up to full, when you return. Your not going to hurt it, if it’s not untended too.
If you have been following the threads here, you would know that taking the 12V battery out of the car (unless you connect another 12V source to the battery connections) for more than some, as-yet undetermined number of days, is exactly what NOT to do. Becasue of some kind of design "feature" it will cause the traction pack to self-destruct, totaling the car.
Jebcidic likes this.
Yinzer is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Smart Car Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome
 

Clubs, Garage Plus vBulletin Plugins by Drive Thru Online, Inc.