User avatar
EVDRIVER
Moderator
Posts: 6753
Joined: Sat Apr 24, 2010 7:51 am

Re: "Trickle charging is not recommended for regular use"

Wed Dec 22, 2010 8:32 pm

Pipemajor wrote:
EVDRIVER wrote:Sometimes hammering a lead pack with current makes them last longer. Over charging or deep cycling them will kill them, Heat is a separate issue. Putting butter on battery terminals before mounting the cables will increase current by as much as 10%.
Hammering a pack with current will never make it last longer. No need to deep cycle lithium batteries and butter on the terminals has nothing to do with charge current.

Yes, it will with some Lead deep cycle batteries under the correct parameters and I hope you understand sarcasm. High current to a Leaf pack will in no way extend it's life.

cwerdna
Posts: 11134
Joined: Fri Jun 03, 2011 4:31 pm
Delivery Date: 28 Jul 2013
Location: SF Bay Area, CA

Re: "Trickle charging is not recommended for regular use"

Sun Jul 03, 2011 1:16 pm

Sorry to bump an ancient thread but "Trickle charging is not recommended for regular use" also caught my attention when skimming thru the manual.

Did anyone ever get more clarity from Nissan as to why? Was it simply just from a customer experience POV of it being slow?

I'm considering a Leaf but might just lease and would rather not spend the expense of getting a L2 EVSE installed at home and might not have a spare 240 volt outlet either (for use w/pEEf's upgraded L1 EVSEs). I know DaveinOlyWA was doing L1 charging exclusively for awhile. I think L1 charging should be sufficient for me since I'd be keeping my Prius.

'19 Bolt Premier
'13 Leaf SV w/premium (owned)
'13 Leaf SV w/QC + LED & premium (lease over)

Please don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

charlie1300
Posts: 260
Joined: Sun Sep 05, 2010 3:23 pm
Delivery Date: 05 Apr 2012
Location: Albany, NY

Re: "Trickle charging is not recommended for regular use"

Sun Jul 03, 2011 1:28 pm

I"m unaware of any new facts that have been presented by Nissan for why "trickle charging is not recommended for regular use".
I had intended to only use the supplied L1 EVSE, but now that I can get it upgraded by Phil, I'll put in a 220 circuit and that's my plan.

From Info posted here by people who know more than I do about batteries, it seems clear that there is no difference between L1 and L2 on battery life.

You will need to provide proper support for the L1 EVSE at the outlet.
reserved : 05/25/2010
AV installed : What, do you think I'm crazy? Got Phil's EVSE upgrade!
Order letter : 9/29/2011
Order date: 1/21/2012
MY Leaf: RED! SL
delivery date: April 5, 2012

User avatar
TomT
Posts: 10650
Joined: Sun Aug 08, 2010 12:09 pm
Delivery Date: 01 Mar 2011
Leaf Number: 000360
Location: California, now Georgia
Contact: Website

Re: "Trickle charging is not recommended for regular use"

Sun Jul 03, 2011 2:09 pm

I believe that Nissan worded it poorly and did not mean that it is harmful to the battery but simply that it takes too long to be practical for many users.
charlie1300 wrote:I"m unaware of any new facts that have been presented by Nissan for why "trickle charging is not recommended for regular use".
Leaf SL 2011 to 2016, Volt Premier 2016 to 2019, and now:
2019 Tesla Model 3; LR, RWD, FSD, 19" Sport Wheels, silver/black; built 3/17/19, delivered 3/29/19.

thankyouOB
Posts: 3583
Joined: Mon Feb 21, 2011 11:14 am
Delivery Date: 30 Apr 2011
Leaf Number: 1442
Location: Coastal LA

Re: "Trickle charging is not recommended for regular use"

Sun Jul 03, 2011 2:46 pm

mogur wrote:I believe that Nissan worded it poorly and did not mean that it is harmful to the battery but simply that it takes too long to be practical for many users.
charlie1300 wrote:I"m unaware of any new facts that have been presented by Nissan for why "trickle charging is not recommended for regular use".
agree, fully.
may reserve/delivery 4/30/11
--
ECOtality/LADWP/ Blink 4/4/11
--
Gardena Nissan, msrp -1k
red SL with etec L3
SOLAR POWERED since 2008

User avatar
planet4ever
Posts: 4674
Joined: Sat Apr 03, 2010 9:53 pm
Delivery Date: 02 May 2011
Leaf Number: 1537
Location: Morgan Hill, CA, south of San Jose

Re: "Trickle charging is not recommended for regular use"

Sun Jul 03, 2011 2:57 pm

There is some evidence, including from DaveinOlyWA, that 120v charging is significantly less efficient than 240v charging. I think that may be why Nissan does not encourage it. Specifically, Dave was reporting that only 75% of the power he measured at the wall using a Kill-A-Watt appeared to be getting to the battery, while others have reported between 85% and 90% at 240v using TED measurements.

As a further confirmation of this, note that the Owner's Manual shows "trickle" charging as taking three times as long from low battery to full as does "normal" charging. But 12 amps * 120v = 1440 watts while 16 amps * 240v = 3840 watts. 3840/1440 = 2.67 so it should not take three times as long to charge if they were equally efficient. In fact it should take less than 2.67 times as long, since there is less need to taper the charge as the battery gets full when charging at a lower amperage and wattage.

Ray
End of April 2013: Traded my 2011 SL for a 2013 S with charge pkg.

smkettner
Posts: 7501
Joined: Mon Aug 09, 2010 10:13 pm
Delivery Date: 26 Feb 2014
Location: Orange County, CA

Re: "Trickle charging is not recommended for regular use"

Sun Jul 03, 2011 3:07 pm

thankyouOB wrote:
mogur wrote:I believe that Nissan worded it poorly and did not mean that it is harmful to the battery but simply that it takes too long to be practical for many users.
charlie1300 wrote:I"m unaware of any new facts that have been presented by Nissan for why "trickle charging is not recommended for regular use".
agree, fully.
L1 does have limitations. This weekend I have been charging or driving near continuous.
1 bar lost at 21,451 miles, 16 months.
2 bar lost at 35,339 miles, 25 months.
LEAF traded at 45,400 miles for a RAV4-EV
RAV4 traded in for I-Pace Dec 2018

User avatar
gbarry42
Posts: 888
Joined: Mon Jan 10, 2011 5:48 pm
Delivery Date: 06 May 2011
Location: Moonlight Beach

Re: "Trickle charging is not recommended for regular use"

Sun Jul 03, 2011 3:55 pm

Charging at L1 may "take too long". But this isn't bad for the car.
Charging at L1 may waste more power than L2. But this isn't bad for the car.
I kind of latched onto the notion that "topping it off" every night when it's not being driven is the kind of "trickle charging" that might be bad for the car. But even that doesn't seem like a big deal. I did this one night just to test my L1 (I had never used it), and the car went 5 minutes and then stopped it.

I would like to hear from Paul Scott, though, regarding
I've got enough time in the LEAF to know 120 miles is easy to do.
...now that it's 6 months later.
And there goes the first capacity bar! At 24,000 mi on 9/9/2013.
Second bar at 30,500 mi on 2/7/2015.

LEAFfan
Posts: 4828
Joined: Fri Apr 23, 2010 6:08 pm
Delivery Date: 08 Jun 2011
Leaf Number: 1855
Location: Phoenix Area

Re: "Trickle charging is not recommended for regular use"

Sun Jul 03, 2011 4:30 pm

gbarry42 wrote:I would like to hear from Paul Scott, though, regarding
I've got enough time in the LEAF to know 120 miles is easy to do.
...now that it's 6 months later.
If he has relatively flat streets and keeps it around 38mph, he will have no trouble hitting 120 miles or more. I can get over 100 miles (6.3 x 16) on an 80% charge if I drive all city streets, so I'm sure 120 would be no problem with 100%. Driving on the city streets, I've reached 6.8m/kwh. That would be over 140 miles (6.8 x 21) at 100% charge.
2013 LEAF SV Del. 2/28/13
2013 LEAF World Record for Most Miles Driven On One Charge-188 miles/8.8 m/kW h
4.8 kW DC PV ($ .91/W fully installed)/ Dec., 2010

User avatar
DaveEV
Posts: 6246
Joined: Fri Apr 23, 2010 3:51 pm
Location: San Diego

Re: "Trickle charging is not recommended for regular use"

Mon Jul 04, 2011 11:14 am

LEAFfan wrote:Driving on the city streets, I've reached 6.8m/kwh.
Is that from the wall or as indicated on the dash?

Only drawback I see to trickle charging is the hassle of getting the cord out and the lower efficiency, myself.

Return to “News & Main LEAF Discussion”